diff --git a/README.md b/README.md
index 9a6399a..5800ae6 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,66 @@
-# chexpire [![Build Status](https://travis-ci.org/Evolix/chexpire.svg?branch=master)](https://travis-ci.org/Evolix/chexpire)
+# Chexpire [![Build Status](https://travis-ci.org/Evolix/chexpire.svg?branch=master)](https://travis-ci.org/Evolix/chexpire)
 
 A web application to help check for domain or SSL/TLS certificate expirations.
 
 ![Shakespeare quote: « An SSL error has occured and a secure connection to the server cannot be made. »](app/assets/images/shakespeare_quote_ssl.png)
+
+
+## How-To Add a new check kind
+
+TL;DR:
+
+- write a job for executing and updating a check instance of your kind and use `CheckLogger` to log important event during a check execution.
+- Write a `CheckProcessor` class to perform theses jobs at regular interval.
+- For each notification channel, implement the code that notify the user when the date will expires soon or when there are recurrent failures.
+
+
+Start by appending a new kind into the `Check` model at the `enum :kind` line.
+
+### Write a job and the check execution
+
+The job takes a `Check` instance as an argument and is responsible for performing the check and updating the following dates fields for the check instance:
+
+  - mandatory: `last_run_at`, immediately when the execution is starting
+  - mandatory: `domain_expires_at`
+  - mandatory: `last_success_at`, when no problems have occured during the verification and fields have been updated
+  - optional: `domain_created_at`, `domain_updated_at`, when the kind of check allows them
+
+The code architecture is up to you and can vary depending on the check, but most of time you should write a service which will execute something and parse the response. Then you'll return a simple response object which responds to methods used for updating check fields in the job.
+
+Look at the SSL and Domain implementations for examples.
+
+
+### CheckLogger
+
+This is not currently required, but you should use the `CheckLogger` class to emit log events at important steps of a check execution (especially when error occurs): this can help in case of problems. A single `CheckLogger` instance is attached to a check execution and fill a `CheckLog` model instance with various contents. Looks into the code to see supported events.
+
+### CheckProcessor
+
+A `processor` is responsible for executing checks at regular interval, selectively or not, depending of your needs.
+Basically, it performs your job for all relevant checks.
+
+Create a processor dedicated for your check kind. The class should include the `CheckProcessor` module and respond to the following methods :
+
+- `configuration_key`: returns the key name of configuration in chexpire configuration file. For instance: `checks_domain`
+- `scope`: returns the checks scope used by each resolver. Generally, this should be the base scope defined into the `CheckProcessor` module, filtered by your check kind (ie: `base_scope.your_kind`)
+- `resolvers`: returns an array of methods which returns checks to execute. Allows conditional checks depending of various checks criterias such as far known expiry date, failing checks etc…
+Looks into the `CheckProcessor` for available resolvers methods or write your own. use `resolve_all` resolver if you want execute all of your check at each execution.
+- `process`: must execute or enqueue your job for a given check as argument. Note: because the processor is called into a task, and to take profit of a interval configuration parameter, it's better to execute the job synchronously in this method.
+
+### Configuration
+
+Each check kind can have configuration. Looks for other checks configuration for examples, such as `checks_domain` configuration in `config/chexpire.example.yml` file.
+
+### Schedule a task
+
+Write a task in `lib/tasks/checks.rake` under the namespaces `checks:sync_dates` and invoke the `sync_dates` method of your processor. Schedule to run it periodically in `config/schedule.rb`, or list the task in the `all` alias which is the default processor scheduler.
+
+### Notifier
+
+Finally, you have to write the way the checks will be notified to theirs users. For each notifier channel (email, …) you need to write two notifications :
+
+- expires_soon
+- recurrent_failures
+
+First, add your checks kinds and these notifications definitions in the base class for notifier: `app/services/notifier/base.rb` : in the notify method, for your new check kind, a specific method will be called in each notifier. For example, in the email channel, a specific mailer action is called for each couple (check kin, notification kind).
+Then, in each notifier class, implements the details of this method. If you want to ignore a notification for a given channel, simply write the method and do nothing.
diff --git a/app/jobs/ssl_sync_job.rb b/app/jobs/ssl_sync_job.rb
new file mode 100644
index 0000000..6c47679
--- /dev/null
+++ b/app/jobs/ssl_sync_job.rb
@@ -0,0 +1,43 @@
+class SSLSyncJob < ApplicationJob
+  queue_as :default
+
+  rescue_from StandardError do |exception|
+    check_logger.log(:standard_error, exception) if check.present?
+    raise # rubocop:disable Style/SignalException
+  end
+
+  rescue_from ActiveRecord::RecordNotFound do; end
+
+  # parser error are already logged
+  rescue_from SSL::Error do; end
+
+  attr_reader :check
+
+  def perform(check_id)
+    prepare_check(check_id)
+
+    response = SSL.ask(check.domain, logger: check_logger)
+    return unless response.valid?
+
+    update_from_response(response)
+  end
+
+  def update_from_response(response)
+    check.domain_expires_at = response.expire_at
+    check.last_success_at = Time.now
+
+    check.save!
+  end
+
+  private
+
+  def prepare_check(check_id)
+    @check = Check.find(check_id)
+    check.update_attribute(:last_run_at, Time.now)
+  end
+
+  # logger is a reserved ActiveJob method
+  def check_logger
+    @check_logger ||= CheckLogger.new(check)
+  end
+end
diff --git a/app/mailers/notifications_mailer.rb b/app/mailers/notifications_mailer.rb
index 814d526..31a4677 100644
--- a/app/mailers/notifications_mailer.rb
+++ b/app/mailers/notifications_mailer.rb
@@ -19,4 +19,16 @@ class NotificationsMailer < ApplicationMailer
     subject = t(".subject", domain: @check.domain)
     mail subject: subject
   end
+
+  def ssl_expires_soon
+    @expire_in_days = Integer(@check.domain_expires_at.to_date - Date.today)
+
+    subject = t(".subject", domain: @check.domain, count: @expire_in_days)
+    mail subject: subject
+  end
+
+  def ssl_recurrent_failures
+    subject = t(".subject", domain: @check.domain)
+    mail subject: subject
+  end
 end
diff --git a/app/services/check_domain_processor.rb b/app/services/check_domain_processor.rb
new file mode 100644
index 0000000..183fc03
--- /dev/null
+++ b/app/services/check_domain_processor.rb
@@ -0,0 +1,26 @@
+class CheckDomainProcessor
+  include CheckProcessor
+
+  protected
+
+  def configuration_key
+    "checks_domain"
+  end
+
+  def resolvers
+    %i[
+      resolve_last_run_failed
+      resolve_expire_short_term
+      resolve_expire_long_term
+      resolve_unknown_expiry
+    ]
+  end
+
+  def scope
+    base_scope.domain
+  end
+
+  def process(check)
+    WhoisSyncJob.perform_now(check.id)
+  end
+end
diff --git a/app/services/check_processor.rb b/app/services/check_processor.rb
index 31737c3..abe087c 100644
--- a/app/services/check_processor.rb
+++ b/app/services/check_processor.rb
@@ -1,17 +1,12 @@
-class CheckProcessor
+module CheckProcessor
   attr_reader :configuration
 
   def initialize(configuration = nil)
     @configuration = configuration || default_configuration
   end
 
-  def sync_dates # rubocop:disable Metrics/MethodLength
-    %i[
-      resolve_last_run_failed
-      resolve_expire_short_term
-      resolve_expire_long_term
-      resolve_unknown_expiry
-    ].each do |resolver|
+  def sync_dates
+    resolvers.each do |resolver|
       public_send(resolver).find_each(batch_size: 100).each do |check|
         process(check)
 
@@ -20,6 +15,12 @@ class CheckProcessor
     end
   end
 
+  # :nocov:
+  def resolvers
+    fail NotImplementedError, "#{self.class.name} did not implemented method #{__callee__}"
+  end
+  # :nocov:
+
   def resolve_last_run_failed
     scope.last_run_failed
   end
@@ -41,25 +42,36 @@ class CheckProcessor
     scope.where("domain_expires_at IS NULL")
   end
 
-  private
+  def resolve_all
+    scope
+  end
 
-  def scope
+  protected
+
+  def base_scope
     Check
       .active
       .where("last_run_at IS NULL OR last_run_at < DATE_SUB(NOW(), INTERVAL 12 HOUR)")
   end
 
-  def process(check)
-    case check.kind.to_sym
-    when :domain
-      WhoisSyncJob.perform_now(check.id)
-    else
-      fail ArgumentError, "Unsupported check kind `#{check.kind}`"
-    end
+  # :nocov:
+  def scope
+    fail NotImplementedError, "#{self.class.name} did not implemented method #{__callee__}"
   end
 
+  def process(_check)
+    fail NotImplementedError, "#{self.class.name} did not implemented method #{__callee__}"
+  end
+
+  def configuration_key
+    fail NotImplementedError, "#{self.class.name} did not implemented method #{__callee__}"
+  end
+  # :nocov:
+
+  private
+
   def default_configuration
-    config = Rails.configuration.chexpire.fetch("checks", {})
+    config = Rails.configuration.chexpire.fetch(configuration_key, {})
 
     OpenStruct.new(
       interval: config.fetch("interval") { 0.00 },
diff --git a/app/services/check_ssl_processor.rb b/app/services/check_ssl_processor.rb
new file mode 100644
index 0000000..f36e7c5
--- /dev/null
+++ b/app/services/check_ssl_processor.rb
@@ -0,0 +1,23 @@
+class CheckSSLProcessor
+  include CheckProcessor
+
+  protected
+
+  def configuration_key
+    "checks_ssl"
+  end
+
+  def resolvers
+    %i[
+      resolve_all
+    ]
+  end
+
+  def scope
+    base_scope.ssl
+  end
+
+  def process(check)
+    SSLSyncJob.perform_now(check.id)
+  end
+end
diff --git a/app/services/notifier/channels/base.rb b/app/services/notifier/channels/base.rb
index b63a52d..a3e9586 100644
--- a/app/services/notifier/channels/base.rb
+++ b/app/services/notifier/channels/base.rb
@@ -11,6 +11,10 @@ module Notifier
           domain_notify_expires_soon(notification)
         when [:domain, :recurrent_failures]
           domain_notify_recurrent_failures(notification)
+        when [:ssl, :expires_soon]
+          ssl_notify_expires_soon(notification)
+        when [:ssl, :recurrent_failures]
+          ssl_notify_recurrent_failures(notification)
         else
           fail ArgumentError,
             "Invalid notification reason `#{reason}` for check kind `#{notification.check.kind}`."
@@ -25,15 +29,16 @@ module Notifier
           "#{self.class.name} channel did not implemented method #{__callee__}"
       end
 
-      # domain notifications
-      def domain_notify_expires_soon(_notification)
-        fail NotImplementedError,
-          "Channel #{self.class.name} does not implement #{__callee__}"
-      end
-
-      def domain_notify_recurrent_failures(_notification)
-        fail NotImplementedError,
-          "Channel #{self.class.name} does not implement #{__callee__}"
+      %i[
+        domain_notify_expires_soon
+        domain_notify_recurrent_failures
+        ssl_notify_expires_soon
+        ssl_notify_recurrent_failures
+      ].each do |method|
+        define_method(method) do
+          fail NotImplementedError,
+            "Channel #{self.class.name} does not implement method #{method}."
+        end
       end
       # :nocov:
     end
diff --git a/app/services/notifier/channels/email.rb b/app/services/notifier/channels/email.rb
index 17bbdab..9243b7d 100644
--- a/app/services/notifier/channels/email.rb
+++ b/app/services/notifier/channels/email.rb
@@ -16,6 +16,14 @@ module Notifier
       def domain_notify_recurrent_failures(notification)
         NotificationsMailer.with(notification: notification).domain_recurrent_failures.deliver_now
       end
+
+      def ssl_notify_expires_soon(notification)
+        NotificationsMailer.with(notification: notification).ssl_expires_soon.deliver_now
+      end
+
+      def ssl_notify_recurrent_failures(notification)
+        NotificationsMailer.with(notification: notification).ssl_recurrent_failures.deliver_now
+      end
     end
   end
 end
diff --git a/app/services/ssl.rb b/app/services/ssl.rb
new file mode 100644
index 0000000..95af40f
--- /dev/null
+++ b/app/services/ssl.rb
@@ -0,0 +1,66 @@
+require "null_logger"
+require "system_command"
+require_relative "ssl/parser"
+require_relative "ssl/response"
+require_relative "ssl/errors"
+
+module SSL
+  class << self
+    def ask(domain, system_klass: SystemCommand, logger: NullLogger.new)
+      Service.new(domain, system_klass: system_klass, logger: logger).call
+    end
+  end
+
+  class Service
+    attr_reader :domain
+    attr_reader :logger
+    attr_reader :system_klass
+    attr_reader :configuration
+
+    def initialize(domain, system_klass: SystemCommand, configuration: nil, logger: NullLogger.new)
+      @domain = domain
+      @logger = logger
+      @system_klass = system_klass
+      @configuration = configuration || default_configuration
+    end
+
+    def call
+      result = run_command
+      parse(result)
+    rescue StandardError => ex
+      logger.log :service_error, ex
+      raise
+    end
+
+    def run_command
+      command = system_klass.new(check_http_path, check_http_args, logger: logger)
+      result = command.execute
+
+      unless result.exit_status.zero?
+        fail SSLCommandError, "SSL command failed with status #{result.exit_status}"
+      end
+
+      result
+    end
+
+    def parse(result)
+      parser = Parser.new(domain, logger: logger)
+      parser.parse(result.stdout)
+    end
+
+    def check_http_path
+      configuration.check_http_path.presence || "check_http"
+    end
+
+    def check_http_args
+      [
+        configuration.check_http_args.presence,
+        "-H '#{domain}'",
+      ].compact
+    end
+
+    def default_configuration
+      OpenStruct.new(Rails.configuration.chexpire.fetch("checks_ssl") { {} })
+    end
+  end
+end
diff --git a/app/services/ssl/errors.rb b/app/services/ssl/errors.rb
new file mode 100644
index 0000000..6982c62
--- /dev/null
+++ b/app/services/ssl/errors.rb
@@ -0,0 +1,10 @@
+module SSL
+  class Error < StandardError; end
+
+  class SSLCommandError < Error; end
+
+  class ParserError < Error; end
+  class DomainNotMatchError < ParserError; end
+  class InvalidResponseError < ParserError; end
+  class InvalidDateError < ParserError; end
+end
diff --git a/app/services/ssl/parser.rb b/app/services/ssl/parser.rb
new file mode 100644
index 0000000..68dffe8
--- /dev/null
+++ b/app/services/ssl/parser.rb
@@ -0,0 +1,52 @@
+require "null_logger"
+require "ssl/errors"
+
+module SSL
+  class Parser
+    DATE_REGEX = /will expire on (.+)\./
+    # Several date formats possible:
+    # OK - Certificate 'domain.net' will expire on Sat 10 Jun 2028 09:14:18 AM GMT +0000.
+    # OK - Certificate 'domain.net' will expire on 2018-08-06 02:57 +0200/CEST.
+
+    attr_reader :logger
+    attr_reader :domain
+
+    def initialize(domain, logger: NullLogger.new)
+      @logger = logger
+      @domain = domain
+    end
+
+    def parse(raw)
+      fail DomainNotMatchError unless match_domain?(raw)
+
+      match = raw.match(DATE_REGEX)
+
+      fail InvalidResponseError unless match.present?
+
+      response = build_response(match)
+
+      logger.log :parsed_response, response
+
+      response
+    rescue ParserError => ex
+      logger.log :parser_error, ex
+      raise
+    end
+
+    def match_domain?(raw)
+      raw.match(/\b#{domain}\b/).present?
+    end
+
+    def build_response(match)
+      Response.new(domain).tap do |response|
+        response.expire_at = parse_datetime(match[1])
+      end
+    end
+
+    def parse_datetime(date_str)
+      Time.parse(date_str).utc
+    rescue StandardError => ex
+      raise InvalidDateError, ex.message
+    end
+  end
+end
diff --git a/app/services/ssl/response.rb b/app/services/ssl/response.rb
new file mode 100644
index 0000000..762c498
--- /dev/null
+++ b/app/services/ssl/response.rb
@@ -0,0 +1,13 @@
+module SSL
+  class Response
+    attr_accessor :expire_at
+
+    def initialize(domain)
+      @domain = domain
+    end
+
+    def valid?
+      expire_at.present?
+    end
+  end
+end
diff --git a/app/views/notifications_mailer/_footer_expires_soon.fr.html.erb b/app/views/notifications_mailer/_footer_expires_soon.fr.html.erb
index d6f13b9..2389402 100644
--- a/app/views/notifications_mailer/_footer_expires_soon.fr.html.erb
+++ b/app/views/notifications_mailer/_footer_expires_soon.fr.html.erb
@@ -3,7 +3,7 @@
 --
 
 <p>
-  Vous avez reçu ce courriel à <%= pluralize(delay, "jour", "jours") %> avant la date d'expiration.</br>
+  Vous avez reçu ce courriel à <%= pluralize(interval, "jour", "jours") %> avant la date d'expiration.</br>
   Vous pouvez gérer les notifications pour cette vérification à ce adresse :
   <%= link_to nil, edit_check_url(check) %>
 </p>
diff --git a/app/views/notifications_mailer/_footer_expires_soon.fr.text.erb b/app/views/notifications_mailer/_footer_expires_soon.fr.text.erb
index 35d29f2..6c3880b 100644
--- a/app/views/notifications_mailer/_footer_expires_soon.fr.text.erb
+++ b/app/views/notifications_mailer/_footer_expires_soon.fr.text.erb
@@ -1,6 +1,6 @@
 --
 
-Vous avez reçu ce courriel à <%= pluralize(delay, "jour", "jours") %> avant
+Vous avez reçu ce courriel à <%= pluralize(interval, "jour", "jours") %> avant
 la date d'expiration.
 Vous pouvez gérer les notifications pour cette vérification à ce adresse :
 <%= edit_check_url(check) %>
diff --git a/app/views/notifications_mailer/_footer_recurrent_failures.fr.html.erb b/app/views/notifications_mailer/_footer_recurrent_failures.fr.html.erb
index 8d68f9d..bb35480 100644
--- a/app/views/notifications_mailer/_footer_recurrent_failures.fr.html.erb
+++ b/app/views/notifications_mailer/_footer_recurrent_failures.fr.html.erb
@@ -2,7 +2,7 @@
 <br />
 --
 
-<p>Vous avez reçu ce courriel à <%= pluralize(delay, "jour", "jours") %> avant la dernière date d'expiration connue.<br />
+<p>Vous avez reçu ce courriel à <%= pluralize(interval, "jour", "jours") %> avant la dernière date d'expiration connue.<br />
 Vous pouvez gérer les notifications pour cette vérification à ce adresse :
 <%= link_to nil, edit_check_url(check) %>
 </p>
diff --git a/app/views/notifications_mailer/_footer_recurrent_failures.fr.text.erb b/app/views/notifications_mailer/_footer_recurrent_failures.fr.text.erb
index ca48eea..a77dd21 100644
--- a/app/views/notifications_mailer/_footer_recurrent_failures.fr.text.erb
+++ b/app/views/notifications_mailer/_footer_recurrent_failures.fr.text.erb
@@ -1,6 +1,6 @@
 --
 
-Vous avez reçu ce courriel à <%= pluralize(delay, "jour", "jours") %>
+Vous avez reçu ce courriel à <%= pluralize(interval, "jour", "jours") %>
 avant la dernière date d'expiration connue.
 Vous pouvez gérer les notifications pour cette vérification à ce adresse :
 <%= edit_check_url(check) %>
diff --git a/app/views/notifications_mailer/domain_expires_soon.fr.html.erb b/app/views/notifications_mailer/domain_expires_soon.fr.html.erb
index 365f986..9b39910 100644
--- a/app/views/notifications_mailer/domain_expires_soon.fr.html.erb
+++ b/app/views/notifications_mailer/domain_expires_soon.fr.html.erb
@@ -9,4 +9,4 @@
 
 <%= render "check_comment_vendor" %>
 
-<%= render "footer_expires_soon", delay: @notification.delay, check: @check %>
+<%= render "footer_expires_soon", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/domain_expires_soon.fr.text.erb b/app/views/notifications_mailer/domain_expires_soon.fr.text.erb
index 7d11568..2caad62 100644
--- a/app/views/notifications_mailer/domain_expires_soon.fr.text.erb
+++ b/app/views/notifications_mailer/domain_expires_soon.fr.text.erb
@@ -6,4 +6,4 @@ le domaine <%= @check.domain %> va expirer le <%= format_utc(@check.domain_expir
 <%= render "check_comment_vendor" %>
 
 
-<%= render "footer_expires_soon", delay: @notification.delay, check: @check %>
+<%= render "footer_expires_soon", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/domain_recurrent_failures.en.html.erb b/app/views/notifications_mailer/domain_recurrent_failures.en.html.erb
index 5584f9b..2146dbc 100644
--- a/app/views/notifications_mailer/domain_recurrent_failures.en.html.erb
+++ b/app/views/notifications_mailer/domain_recurrent_failures.en.html.erb
@@ -8,9 +8,14 @@
 </p>
 
 <p>
-  Our last known expiry date is <%= format_utc(@check.domain_expires_at) %>.
-  <br />
-  Our last successful check occured <%= format_utc(@check.last_success_at) %>.
+  <%- if @check.domain_expires_at.present? %>
+    Our last known expiry date is <%= format_utc(@check.domain_expires_at) %>.
+    <br />
+  <% end %>
+
+  <%- if @check.last_success_at.present? %>
+    Our last successful check occured <%= format_utc(@check.last_success_at) %>.
+  <% end %>
 </p>
 
 <p>
diff --git a/app/views/notifications_mailer/domain_recurrent_failures.en.text.erb b/app/views/notifications_mailer/domain_recurrent_failures.en.text.erb
index a54d658..b5ce466 100644
--- a/app/views/notifications_mailer/domain_recurrent_failures.en.text.erb
+++ b/app/views/notifications_mailer/domain_recurrent_failures.en.text.erb
@@ -3,8 +3,12 @@ Hi,
 We had recurrent failures while checking the whois database for domain
 <%= @check.domain %>. As of today, we can't anymore verify the expiry date.
 
+<%- if @check.domain_expires_at.present? %>
 The last known expiry date is <%= format_utc(@check.domain_expires_at) %>.
+<% end %>
+<%- if @check.last_success_at.present? %>
 The last successful check occured <%= format_utc(@check.last_success_at) %>.
+<% end %>
 
 If you have deleted your domain or have not renewed it, please disable
 or delete the check by following this link:
diff --git a/app/views/notifications_mailer/domain_recurrent_failures.fr.html.erb b/app/views/notifications_mailer/domain_recurrent_failures.fr.html.erb
index 94e15ba..7da5aed 100644
--- a/app/views/notifications_mailer/domain_recurrent_failures.fr.html.erb
+++ b/app/views/notifications_mailer/domain_recurrent_failures.fr.html.erb
@@ -8,9 +8,14 @@
 </p>
 
 <p>
-  La dernière date d'expiration connue est le <%= format_utc(@check.domain_expires_at) %>.
-  <br />
-  Notre dernière vérification réussie a eu lieu le <%= format_utc(@check.last_success_at) %>.
+  <%- if @check.domain_expires_at.present? %>
+    La dernière date d'expiration connue est le <%= format_utc(@check.domain_expires_at) %>.
+    <br />
+  <% end %>
+
+  <%- if @check.last_success_at.present? %>
+    Notre dernière vérification réussie a eu lieu le <%= format_utc(@check.last_success_at) %>.
+  <% end %>
 </p>
 
 <p>
@@ -21,4 +26,4 @@ Si vous avez supprimé le domaine ou ne l'avez pas renouvellé, merci de désact
 <%= render "check_comment_vendor" %>
 
 
-<%= render "footer_recurrent_failures", delay: @notification.delay, check: @check %>
+<%= render "footer_recurrent_failures", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/domain_recurrent_failures.fr.text.erb b/app/views/notifications_mailer/domain_recurrent_failures.fr.text.erb
index 64b76c5..cb8673e 100644
--- a/app/views/notifications_mailer/domain_recurrent_failures.fr.text.erb
+++ b/app/views/notifications_mailer/domain_recurrent_failures.fr.text.erb
@@ -4,10 +4,17 @@ Nous avons rencontré de multiples erreurs pendant l'exécution des vérificatio
 du domaine <strong><%= @check.domain %></strong>.
 Nous ne pouvons plus interroger la base Whois pour vérifier la date d'expiration.
 
+<%- if @check.domain_expires_at.present? %>
+La dernière date d'expiration connue est le <%= format_utc(@check.domain_expires_at) %>.
+<% end %>
+<%- if @check.last_success_at.present? %>
+Notre dernière vérification réussie a eu lieu le <%= format_utc(@check.last_success_at) %>.
+<% end %>
+
 Si vous avez supprimé le domaine ou ne l'avez pas renouvellé,
 merci de désactiver la vérification associée, avec ce lien :
 <%= edit_check_url(@check) %>
 
 <%= render "check_comment_vendor" %>
 
-<%= render "footer_recurrent_failures", delay: @notification.delay, check: @check %>
+<%= render "footer_recurrent_failures", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/ssl_expires_soon.en.html.erb b/app/views/notifications_mailer/ssl_expires_soon.en.html.erb
new file mode 100644
index 0000000..401df10
--- /dev/null
+++ b/app/views/notifications_mailer/ssl_expires_soon.en.html.erb
@@ -0,0 +1,12 @@
+<p>
+  Hi,
+  <br />
+  <br />
+  the SSL certificate for <strong><%= @check.domain %></strong> will expire
+  <strong><%= format_utc(@check.domain_expires_at) %></strong>.
+</p>
+<br />
+
+<%= render "check_comment_vendor" %>
+
+<%= render "footer_expires_soon", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/ssl_expires_soon.en.text.erb b/app/views/notifications_mailer/ssl_expires_soon.en.text.erb
new file mode 100644
index 0000000..a1d1c56
--- /dev/null
+++ b/app/views/notifications_mailer/ssl_expires_soon.en.text.erb
@@ -0,0 +1,9 @@
+Hi,
+
+the SSL certificate for <%= @check.domain %> will expire <%= format_utc(@check.domain_expires_at) %>.
+
+
+<%= render "check_comment_vendor" %>
+
+
+<%= render "footer_expires_soon", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/ssl_expires_soon.fr.html.erb b/app/views/notifications_mailer/ssl_expires_soon.fr.html.erb
new file mode 100644
index 0000000..dfc1c3f
--- /dev/null
+++ b/app/views/notifications_mailer/ssl_expires_soon.fr.html.erb
@@ -0,0 +1,12 @@
+<p>
+  Salut,
+  <br />
+  <br />
+  le certificat SSL pour <strong><%= @check.domain %></strong> va expirer le
+  <strong><%= format_utc(@check.domain_expires_at) %></strong>.
+</p>
+<br />
+
+<%= render "check_comment_vendor" %>
+
+<%= render "footer_expires_soon", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/ssl_expires_soon.fr.text.erb b/app/views/notifications_mailer/ssl_expires_soon.fr.text.erb
new file mode 100644
index 0000000..0664fb5
--- /dev/null
+++ b/app/views/notifications_mailer/ssl_expires_soon.fr.text.erb
@@ -0,0 +1,9 @@
+Salut,
+
+le certificat SSL pour <%= @check.domain %> va expirer le <%= format_utc(@check.domain_expires_at) %>.
+
+
+<%= render "check_comment_vendor" %>
+
+
+<%= render "footer_expires_soon", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/ssl_recurrent_failures.en.html.erb b/app/views/notifications_mailer/ssl_recurrent_failures.en.html.erb
new file mode 100644
index 0000000..602c32d
--- /dev/null
+++ b/app/views/notifications_mailer/ssl_recurrent_failures.en.html.erb
@@ -0,0 +1,31 @@
+<p>
+  Hi,
+  <br />
+  <br />
+
+  We had <strong>recurrent failures</strong> while checking the SSL certificate for
+  <strong><%= @check.domain %></strong>. As of today, we can no longer verify the certificate
+  expiry date.
+</p>
+
+<p>
+  <%- if @check.domain_expires_at.present? %>
+    Our last known expiry date is <%= format_utc(@check.domain_expires_at) %>.
+    <br />
+  <%- end %>
+
+  <%- if @check.last_success_at.present? %>
+    Our last successful check occured <%= format_utc(@check.last_success_at) %>.
+  <%- end %>
+</p>
+
+<p>
+  If there is no more SSL endpoint for this domain, please disable
+  or delete the check by following this link: <br /><br />
+  <%= link_to nil, edit_check_url(@check) %>
+</p>
+<br />
+<%= render "check_comment_vendor" %>
+
+
+<%= render "footer_recurrent_failures", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/ssl_recurrent_failures.en.text.erb b/app/views/notifications_mailer/ssl_recurrent_failures.en.text.erb
new file mode 100644
index 0000000..2bb6dd3
--- /dev/null
+++ b/app/views/notifications_mailer/ssl_recurrent_failures.en.text.erb
@@ -0,0 +1,22 @@
+Hi,
+
+We had recurrent failures while checking the SSL certificate for
+<%= @check.domain %>. As of today, we can no longer verify the certificate
+expiry date.
+
+<%- if @check.domain_expires_at.present? %>
+The last known expiry date is <%= format_utc(@check.domain_expires_at) %>.
+<%- end %>
+
+<%- if @check.last_success_at.present? %>
+The last successful check occured <%= format_utc(@check.last_success_at) %>.
+<%- end %>
+
+If there is no more SSL endpoint for this domain, please disable
+or delete the check by following this link:
+
+<%= edit_check_url(@check) %>
+
+<%= render "check_comment_vendor" %>
+
+<%= render "footer_recurrent_failures", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/ssl_recurrent_failures.fr.html.erb b/app/views/notifications_mailer/ssl_recurrent_failures.fr.html.erb
new file mode 100644
index 0000000..ea05abc
--- /dev/null
+++ b/app/views/notifications_mailer/ssl_recurrent_failures.fr.html.erb
@@ -0,0 +1,35 @@
+<p>
+  Salut,
+  <br />
+  <br />
+
+  Nous avons rencontré de <strong>multiples erreurs</strong>
+  pendant l'exécution des vérifications du certificat SSL
+  du site <strong><%= @check.domain %></strong>.
+  Nous ne pouvons plus vérifier la date d'expiration du certificat
+  en nous connectant au site.
+</p>
+
+<p>
+  <%- if @check.domain_expires_at.present? %>
+    La dernière date d'expiration connue est le <%= format_utc(@check.domain_expires_at) %>.
+    <br />
+  <% end %>
+
+  <%- if @check.last_success_at.present? %>
+    Notre dernière vérification réussie a eu lieu le <%= format_utc(@check.last_success_at) %>.
+  <% end %>
+</p>
+
+<p>
+  S'il n'y a plus de terminaison SSL pour ce site ou s'il n'existe plus,
+  merci de désactiver la vérification associée, avec ce lien :
+  <br />
+  <br />
+  <%= link_to nil, edit_check_url(@check) %>
+</p>
+<br />
+<%= render "check_comment_vendor" %>
+
+
+<%= render "footer_recurrent_failures", interval: @notification.interval, check: @check %>
diff --git a/app/views/notifications_mailer/ssl_recurrent_failures.fr.text.erb b/app/views/notifications_mailer/ssl_recurrent_failures.fr.text.erb
new file mode 100644
index 0000000..fe15787
--- /dev/null
+++ b/app/views/notifications_mailer/ssl_recurrent_failures.fr.text.erb
@@ -0,0 +1,22 @@
+Salut,
+
+Nous avons rencontré de multiples erreurs pendant l'exécution des vérifications
+du certificat SSL pour le site <strong><%= @check.domain %></strong>.
+Nous ne pouvons plus vérifier la date d'expiration du certificat
+en nous connectant au site.
+
+<%- if @check.domain_expires_at.present? %>
+La dernière date d'expiration connue est le <%= format_utc(@check.domain_expires_at) %>.
+<% end %>
+
+<%- if @check.last_success_at.present? %>
+Notre dernière vérification réussie a eu lieu le <%= format_utc(@check.last_success_at) %>.
+<% end %>
+
+S'il n'y a plus de terminaison SSL pour ce site ou s'il n'existe plus,
+merci de désactiver la vérification associée, avec ce lien :
+<%= edit_check_url(@check) %>
+
+<%= render "check_comment_vendor" %>
+
+<%= render "footer_recurrent_failures", interval: @notification.interval, check: @check %>
diff --git a/config/chexpire.example.yml b/config/chexpire.example.yml
index ffb7daa..b322b96 100644
--- a/config/chexpire.example.yml
+++ b/config/chexpire.example.yml
@@ -3,10 +3,13 @@ default: &default
   notifier:
     interval: 0.00
     failure_days: 3
-  checks:
+  checks_domain:
     interval: 0.5
     long_term: 60
     long_term_frequency: 10
+  checks_ssl:
+    check_http_path: ""
+    check_http_args: ""
 
 development:
   <<: *default
diff --git a/config/chexpire.test.yml b/config/chexpire.test.yml
index db88e9a..2a72a7b 100644
--- a/config/chexpire.test.yml
+++ b/config/chexpire.test.yml
@@ -4,7 +4,10 @@ test:
   notifier:
     interval: 0.00
     failure_days: 3
-  checks:
+  checks_domain:
     interval: 0.00
     long_term: 60
     long_term_frequency: 10
+  checks_ssl:
+    check_http_path: ""
+    check_http_args: ""
diff --git a/config/locales/en.yml b/config/locales/en.yml
index d93597e..9a34ad9 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -38,6 +38,15 @@ en:
     domain_recurrent_failures:
       subject: "Recurrent failures in %{domain} domain expiry check"
 
+    ssl_expires_soon:
+      subject:
+        zero: "SSL certificate for %{domain} expires TODAY!"
+        one: "SSL certificate for %{domain} expires TOMORROW!"
+        other: "SSL certificate for %{domain} expires in %{count} days"
+
+    ssl_recurrent_failures:
+      subject: "Recurrent failures in %{domain} SSL certificate expiry check"
+
 
   shared:
     locales:
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 4e4b71c..ed5926f 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -12,6 +12,14 @@ fr:
         check:
           past: "ne peut être dans le futur"
 
+  time:
+    am: am
+    formats:
+      default: "%a %d %b %Y %H:%M:%S %z"
+      long: "%A %d %B %Y %H:%M"
+      short: "%d %b %H:%M"
+    pm: pm
+
   devise:
     registrations:
       new:
@@ -36,7 +44,16 @@ fr:
         other: "Le domaine %{domain} expire dans %{count} jours"
 
     domain_recurrent_failures:
-      subject: "Multiples erreur dans la vérification d'expiration du domaine %{domain}"
+      subject: "Erreurs dans la vérification d'expiration du domaine %{domain}"
+
+    ssl_expires_soon:
+      subject:
+        zero: "Le certificat SSL pour %{domain} expire AUJOURD'HUI !"
+        one: "Le certificat SSL pour %{domain} expire DEMAIN !"
+        other: "Le certificat SSL pour %{domain} expire dans %{count} jours"
+
+    ssl_recurrent_failures:
+      subject: "Erreurs dans la vérification d'expiration du certificat SSL %{domain}"
 
 
   shared:
diff --git a/config/schedule.rb b/config/schedule.rb
index 709286e..27553b1 100644
--- a/config/schedule.rb
+++ b/config/schedule.rb
@@ -19,7 +19,7 @@ set :output, standard: "log/cron.log"
 # Learn more: http://github.com/javan/whenever
 
 every 1.day, at: '4:30 am', roles: [:app] do
-  rake "checks:sync_dates"
+  rake "checks:sync_dates:all"
 end
 
 every 1.day, at: '10:30 am', roles: [:app] do
diff --git a/db/seeds.rb b/db/seeds.rb
index c89deb6..2bf199b 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -1,3 +1,4 @@
+CheckLog.destroy_all
 Notification.destroy_all
 Check.destroy_all
 User.destroy_all
@@ -33,6 +34,31 @@ check_chexpire_org_error = Check.create!(
   last_success_at: 4.days.ago,
 )
 
+ssl_check_chexpire_org = Check.create!(
+  user: user1,
+  kind: :ssl,
+  domain: "www.chexpire.org",
+  domain_expires_at: 1.week.from_now,
+  domain_updated_at: 6.months.ago,
+  domain_created_at: Time.new(2016, 8, 4, 12, 15, 1),
+  comment: "The date are fake, this is a seed !",
+  vendor: "Some random registrar",
+)
+
+ssl_check_chexpire_org_error = Check.create!(
+  user: user1,
+  kind: :ssl,
+  domain: "chexpire.org",
+  domain_expires_at: 1.week.from_now,
+  domain_updated_at: 6.months.ago,
+  domain_created_at: Time.new(2016, 8, 4, 12, 15, 1),
+  comment: "The date are fake, this is a seed !",
+  vendor: "Some random registrar",
+  last_run_at: 20.minutes.ago,
+  last_success_at: 4.days.ago,
+)
+
+
 Notification.create!(
   check: check_chexpire_org,
   interval: 15,
@@ -49,6 +75,22 @@ Notification.create!(
   status: :pending,
 )
 
+Notification.create!(
+  check: ssl_check_chexpire_org,
+  interval: 15,
+  channel: :email,
+  recipient: "colin@example.org",
+  status: :pending,
+)
+
+Notification.create!(
+  check: ssl_check_chexpire_org_error,
+  interval: 15,
+  channel: :email,
+  recipient: "colin@example.org",
+  status: :pending,
+)
+
 puts "\e[0;32mDone 👌\e[0m"
 puts " "
 puts "--------------------"
diff --git a/lib/tasks/checks.rake b/lib/tasks/checks.rake
index 5d82236..6703e73 100644
--- a/lib/tasks/checks.rake
+++ b/lib/tasks/checks.rake
@@ -1,7 +1,17 @@
 namespace :checks do
-  desc "Refresh expiry dates for checks"
-  task sync_dates: :environment do
-    process = CheckProcessor.new
-    process.sync_dates
+  namespace :sync_dates do
+    task all: [:domain, :ssl]
+
+    desc "Refresh domains expiry dates"
+    task domain: :environment do
+      process = CheckDomainProcessor.new
+      process.sync_dates
+    end
+
+    desc "Refresh SSL expiry dates"
+    task domain: :environment do
+      process = CheckSSLProcessor.new
+      process.sync_dates
+    end
   end
 end
diff --git a/test/factories/checks.rb b/test/factories/checks.rb
index 62d95ec..f940eb2 100644
--- a/test/factories/checks.rb
+++ b/test/factories/checks.rb
@@ -44,6 +44,10 @@ FactoryBot.define do
       kind :domain
     end
 
+    trait :ssl do
+      kind :ssl
+    end
+
     trait :nil_dates do
       domain_created_at nil
       domain_updated_at nil
diff --git a/test/fixtures/files/ssl/ssl0.domain.org.txt b/test/fixtures/files/ssl/ssl0.domain.org.txt
new file mode 100644
index 0000000..8663a1d
--- /dev/null
+++ b/test/fixtures/files/ssl/ssl0.domain.org.txt
@@ -0,0 +1 @@
+OK - Certificate 'ssl0.domain.org' will expire on Sat 10 Jun 2028 09:14:18 AM GMT +0000.
diff --git a/test/fixtures/files/ssl/ssl1.domain.org.txt b/test/fixtures/files/ssl/ssl1.domain.org.txt
new file mode 100644
index 0000000..91b39ee
--- /dev/null
+++ b/test/fixtures/files/ssl/ssl1.domain.org.txt
@@ -0,0 +1 @@
+SSL OK - Certificate 'ssl1.domain.org' will expire on 2022-08-06 02:57 +0200/CEST.
diff --git a/test/fixtures/files/ssl/ssl100.invalid.org.txt b/test/fixtures/files/ssl/ssl100.invalid.org.txt
new file mode 100644
index 0000000..3153b3e
--- /dev/null
+++ b/test/fixtures/files/ssl/ssl100.invalid.org.txt
@@ -0,0 +1 @@
+check_http: Invalid hostname/address - ssl100.invalid.org
diff --git a/test/fixtures/files/ssl/ssl101.invalid.org.txt b/test/fixtures/files/ssl/ssl101.invalid.org.txt
new file mode 100644
index 0000000..1698540
--- /dev/null
+++ b/test/fixtures/files/ssl/ssl101.invalid.org.txt
@@ -0,0 +1 @@
+SSL OK - Certificate 'ssl101.invalid.org' will expire on unknown date.
diff --git a/test/jobs/ssl_sync_job_test.rb b/test/jobs/ssl_sync_job_test.rb
new file mode 100644
index 0000000..0a55cdb
--- /dev/null
+++ b/test/jobs/ssl_sync_job_test.rb
@@ -0,0 +1,68 @@
+require "test_helper"
+
+class SSLSyncJobTest < ActiveJob::TestCase
+  test "calls whois database and update check with the response (domain.fr)" do
+    domain = "ssl0.domain.org"
+    check = create(:check, :nil_dates, domain: domain)
+
+    mock_system_command("check_http", expected_command_arg(domain), stdout: ssl_response(domain)) do
+      SSLSyncJob.perform_now(check.id)
+    end
+
+    check.reload
+
+    assert_just_now check.last_run_at
+    assert_just_now check.last_success_at
+    assert_equal Time.new(2028, 6, 10, 9, 14, 18, 0), check.domain_expires_at
+    assert_nil check.domain_updated_at
+    assert_nil check.domain_created_at
+    assert check.active?
+  end
+
+  test "ignore invalid response" do
+    domain = "domain.fr"
+    check = create(:check, :nil_dates, domain: domain)
+    original_updated_at = check.updated_at
+
+    mock_system_command("check_http", expected_command_arg(domain), stdout: "not a response") do
+      SSLSyncJob.perform_now(check.id)
+    end
+
+    check.reload
+
+    assert_just_now check.last_run_at
+    assert_nil check.last_success_at
+    assert_equal original_updated_at, check.updated_at
+    assert check.active?
+  end
+
+  test "should ignore not found (removed) checks" do
+    assert_nothing_raised do
+      SSLSyncJob.perform_now("9999999")
+    end
+  end
+
+  test "should log and re-raise StandardError" do
+    check = create(:check)
+
+    assert_raise StandardError do
+      SSL.stub :ask, nil do
+        SSLSyncJob.perform_now(check.id)
+      end
+    end
+
+    assert_equal 1, check.logs.count
+    assert_match(/undefined method \W+valid\?/, check.logs.last.error)
+    assert check.logs.last.failed?
+  end
+
+  private
+
+  def ssl_response(domain)
+    file_fixture("ssl/#{domain}.txt").read
+  end
+
+  def expected_command_arg(domain)
+    ["-H '#{domain}'"]
+  end
+end
diff --git a/test/mailers/notifications_mailer_test.rb b/test/mailers/notifications_mailer_test.rb
index adce75c..c261131 100644
--- a/test/mailers/notifications_mailer_test.rb
+++ b/test/mailers/notifications_mailer_test.rb
@@ -1,6 +1,6 @@
 require "test_helper"
 
-class NotificationsMailerTest < ActionMailer::TestCase
+class NotificationsMailerTest < ActionMailer::TestCase # rubocop:disable Metrics/ClassLength
   test "domain_expires_soon" do
     check = create(:check, domain_expires_at: Time.new(2018, 6, 10, 12, 0, 5, "+02:00"))
     notification = build(:notification, interval: 10, check: check, recipient: "colin@example.org")
@@ -17,7 +17,7 @@ class NotificationsMailerTest < ActionMailer::TestCase
       assert_equal ["colin@example.org"], mail.to
       assert_equal [Rails.configuration.chexpire.fetch("mailer_default_from")], mail.from
 
-      parts = [mail.text_part.body.to_s, mail.html_part.to_s]
+      parts = [mail.text_part.decode_body, mail.html_part.decode_body]
 
       parts.each do |part|
         assert_match "domain.fr", part
@@ -30,6 +30,37 @@ class NotificationsMailerTest < ActionMailer::TestCase
     end
   end
 
+  test "domain_expires_soon FR" do
+    check = create(:check, domain_expires_at: Time.new(2018, 6, 10, 12, 0, 5, "+02:00"))
+    notification = build(:notification, interval: 10, check: check, recipient: "colin@example.org")
+
+    I18n.with_locale :fr do
+      Date.stub :today, Date.new(2018, 6, 2) do
+        mail = NotificationsMailer.with(notification: notification).domain_expires_soon
+
+        assert_emails 1 do
+          mail.deliver_now
+        end
+
+        assert_match "domain.fr", mail.subject
+        assert_match "dans 8 jours", mail.subject
+        assert_equal ["colin@example.org"], mail.to
+        assert_equal [Rails.configuration.chexpire.fetch("mailer_default_from")], mail.from
+
+        parts = [mail.text_part.decode_body, mail.html_part.decode_body]
+
+        parts.each do |part|
+          assert_match "domain.fr", part
+          assert_match "dim 10 juin 2018 10:00:05 +0000", part
+          assert_match "10 jours", part
+          assert_match "/checks/#{check.id}/edit", part
+          assert_no_match "commentaire", part
+          assert_no_match "fournisseur", part
+        end
+      end
+    end
+  end
+
   test "domain_expires_soon include comment & vendor" do
     check = create(:check,
                   domain_expires_at: 1.week.from_now,
@@ -39,7 +70,7 @@ class NotificationsMailerTest < ActionMailer::TestCase
 
     mail = NotificationsMailer.with(notification: notification).domain_expires_soon
 
-    parts = [mail.text_part.body.to_s, mail.html_part.to_s]
+    parts = [mail.text_part.decode_body, mail.html_part.decode_body]
 
     parts.each do |part|
       assert_match "My comment", part
@@ -47,6 +78,25 @@ class NotificationsMailerTest < ActionMailer::TestCase
     end
   end
 
+  test "domain_expires_soon include comment & vendor - FR" do
+    check = create(:check,
+                  domain_expires_at: 1.week.from_now,
+                  comment: "My comment",
+                  vendor: "The vendor")
+    notification = build(:notification, check: check)
+
+    I18n.with_locale :fr do
+      mail = NotificationsMailer.with(notification: notification).domain_expires_soon
+
+      parts = [mail.text_part.decode_body, mail.html_part.decode_body]
+
+      parts.each do |part|
+        assert_match "commentaire", part
+        assert_match "Fournisseur", part
+      end
+    end
+  end
+
   test "domain_recurrent_failures" do
     last_success_at = Time.new(2018, 5, 30, 6, 10, 0, "+00:00")
     domain_expires_at = Time.new(2018, 10, 10, 7, 20, 0, "+04:00")
@@ -64,7 +114,7 @@ class NotificationsMailerTest < ActionMailer::TestCase
     assert_equal ["recipient@domain.fr"], mail.to
     assert_equal [Rails.configuration.chexpire.fetch("mailer_default_from")], mail.from
 
-    parts = [mail.text_part.body.to_s, mail.html_part.to_s]
+    parts = [mail.text_part.decode_body, mail.html_part.decode_body]
 
     parts.each do |part|
       assert_match "invalid-domain.fr", part
@@ -75,4 +125,159 @@ class NotificationsMailerTest < ActionMailer::TestCase
       assert_match "/checks/#{check.id}/edit", part
     end
   end
+
+  test "domain_recurrent_failures - FR" do
+    last_success_at = Time.new(2018, 5, 30, 6, 10, 0, "+00:00")
+    domain_expires_at = Time.new(2018, 10, 10, 7, 20, 0, "+04:00")
+    check = build(:check, :last_runs_failed,
+      domain: "invalid-domain.fr",
+      last_success_at: last_success_at,
+      domain_expires_at: domain_expires_at,
+      comment: "My comment")
+    notification = create(:notification, check: check)
+
+    I18n.with_locale :fr do
+      mail = NotificationsMailer.with(notification: notification).domain_recurrent_failures
+      assert_match "Erreurs", mail.subject
+      assert_match "invalid-domain.fr", mail.subject
+
+      assert_equal ["recipient@domain.fr"], mail.to
+      assert_equal [Rails.configuration.chexpire.fetch("mailer_default_from")], mail.from
+
+      parts = [mail.text_part.decode_body, mail.html_part.decode_body]
+
+      parts.each do |part|
+        assert_match "invalid-domain.fr", part
+        assert_match "erreurs", part
+        assert_match(/réussie[a-z ]+ mer 30 mai 2018 06:10:00 \+0000/, part)
+        assert_match(/expiration[a-z ]+ mer 10 oct. 2018 03:20:00 \+0000/, part)
+        assert_match "commentaire", part
+        assert_match "/checks/#{check.id}/edit", part
+      end
+    end
+  end
+
+  test "ssl_expires_soon" do
+    check = create(:check, :ssl, domain_expires_at: Time.new(2018, 6, 10, 12, 0, 5, "+02:00"))
+    notification = build(:notification, interval: 10, check: check, recipient: "colin@example.org")
+
+    Date.stub :today, Date.new(2018, 6, 2) do
+      mail = NotificationsMailer.with(notification: notification).ssl_expires_soon
+
+      assert_emails 1 do
+        mail.deliver_now
+      end
+
+      assert_match "domain.fr", mail.subject
+      assert_match "SSL", mail.subject
+      assert_match "in 8 days", mail.subject
+      assert_equal ["colin@example.org"], mail.to
+      assert_equal [Rails.configuration.chexpire.fetch("mailer_default_from")], mail.from
+
+      parts = [mail.text_part.decode_body, mail.html_part.decode_body]
+
+      parts.each do |part|
+        assert_match "domain.fr", part
+        assert_match "Sun, 10 Jun 2018 10:00:05 +0000", part
+        assert_match "10 days", part
+        assert_match "/checks/#{check.id}/edit", part
+        assert_no_match "comment", part
+        assert_no_match "vendor", part
+      end
+    end
+  end
+
+  test "ssl_expires_soon - FR" do
+    check = create(:check, :ssl, domain_expires_at: Time.new(2018, 6, 10, 12, 0, 5, "+02:00"))
+    notification = build(:notification, interval: 10, check: check, recipient: "colin@example.org")
+
+    I18n.with_locale :fr do
+      Date.stub :today, Date.new(2018, 6, 2) do
+        mail = NotificationsMailer.with(notification: notification).ssl_expires_soon
+
+        assert_emails 1 do
+          mail.deliver_now
+        end
+
+        assert_match "domain.fr", mail.subject
+        assert_match "SSL", mail.subject
+        assert_match "dans 8 jours", mail.subject
+        assert_equal ["colin@example.org"], mail.to
+        assert_equal [Rails.configuration.chexpire.fetch("mailer_default_from")], mail.from
+
+        parts = [mail.text_part.decode_body, mail.html_part.decode_body]
+
+        parts.each do |part|
+          assert_match "domain.fr", part
+          assert_match "dim 10 juin 2018 10:00:05 +0000", part
+          assert_match "10 jours", part
+          assert_match "/checks/#{check.id}/edit", part
+          assert_no_match "commentaire", part
+          assert_no_match "fournisseur", part
+        end
+      end
+    end
+  end
+
+  test "ssl_recurrent_failures" do
+    last_success_at = Time.new(2018, 5, 30, 6, 10, 0, "+00:00")
+    domain_expires_at = Time.new(2018, 10, 10, 7, 20, 0, "+04:00")
+    check = build(:check, :ssl, :last_runs_failed,
+      domain: "invalid-domain.fr",
+      last_success_at: last_success_at,
+      domain_expires_at: domain_expires_at,
+      comment: "My comment")
+    notification = create(:notification, check: check)
+
+    mail = NotificationsMailer.with(notification: notification).ssl_recurrent_failures
+    assert_match "failures", mail.subject
+    assert_match "invalid-domain.fr", mail.subject
+    assert_match "SSL", mail.subject
+
+    assert_equal ["recipient@domain.fr"], mail.to
+    assert_equal [Rails.configuration.chexpire.fetch("mailer_default_from")], mail.from
+
+    parts = [mail.text_part.decode_body, mail.html_part.decode_body]
+
+    parts.each do |part|
+      assert_match "invalid-domain.fr", part
+      assert_match "recurrent failures", part
+      assert_match(/success[a-z ]+ Wed, 30 May 2018 06:10:00 \+0000/, part)
+      assert_match(/expiry[a-z ]+ Wed, 10 Oct 2018 03:20:00 \+0000/, part)
+      assert_match "My comment", part
+      assert_match "/checks/#{check.id}/edit", part
+    end
+  end
+
+  test "ssl_recurrent_failures - FR" do
+    last_success_at = Time.new(2018, 5, 30, 6, 10, 0, "+00:00")
+    domain_expires_at = Time.new(2018, 10, 10, 7, 20, 0, "+04:00")
+    check = build(:check, :ssl, :last_runs_failed,
+      domain: "invalid-domain.fr",
+      last_success_at: last_success_at,
+      domain_expires_at: domain_expires_at,
+      comment: "My comment")
+    notification = create(:notification, check: check)
+
+    I18n.with_locale :fr do
+      mail = NotificationsMailer.with(notification: notification).ssl_recurrent_failures
+      assert_match "Erreurs", mail.subject
+      assert_match "invalid-domain.fr", mail.subject
+      assert_match "SSL", mail.subject
+
+      assert_equal ["recipient@domain.fr"], mail.to
+      assert_equal [Rails.configuration.chexpire.fetch("mailer_default_from")], mail.from
+
+      parts = [mail.text_part.decode_body, mail.html_part.decode_body]
+
+      parts.each do |part|
+        assert_match "invalid-domain.fr", part
+        assert_match "erreurs", part
+        assert_match(/réussie[a-z ]+ mer 30 mai 2018 06:10:00 \+0000/, part)
+        assert_match(/expiration[a-z ]+ mer 10 oct. 2018 03:20:00 \+0000/, part)
+        assert_match "commentaire", part
+        assert_match "/checks/#{check.id}/edit", part
+      end
+    end
+  end
 end
diff --git a/test/mailers/previews/notifications_mailer_preview.rb b/test/mailers/previews/notifications_mailer_preview.rb
index f9c2898..01f5085 100644
--- a/test/mailers/previews/notifications_mailer_preview.rb
+++ b/test/mailers/previews/notifications_mailer_preview.rb
@@ -2,12 +2,25 @@
 class NotificationsMailerPreview < ActionMailer::Preview
   # Preview this email at http://localhost:3000/rails/mailers/notifications_mailer/domain_expires_soon
   def domain_expires_soon
-    NotificationsMailer.with(notification: Notification.first).domain_expires_soon
+    check = Check.domain.first
+    NotificationsMailer.with(notification: check.notifications.first).domain_expires_soon
   end
 
   # Preview this email at http://localhost:3000/rails/mailers/notifications_mailer/domain_recurrent_failures
   def domain_recurrent_failures
-    check = Check.where("last_run_at != last_success_at").limit(1).first
+    check = Check.domain.where("last_run_at != last_success_at").first
     NotificationsMailer.with(notification: check.notifications.first).domain_recurrent_failures
   end
+
+  # Preview this email at http://localhost:3000/rails/mailers/notifications_mailer/ssl_expires_soon
+  def ssl_expires_soon
+    check = Check.ssl.first
+    NotificationsMailer.with(notification: check.notifications.first).ssl_expires_soon
+  end
+
+  # Preview this email at http://localhost:3000/rails/mailers/notifications_mailer/ssl_recurrent_failures
+  def ssl_recurrent_failures
+    check = Check.ssl.where("last_run_at != last_success_at").first
+    NotificationsMailer.with(notification: check.notifications.first).ssl_recurrent_failures
+  end
 end
diff --git a/test/services/check_domain_processor_test.rb b/test/services/check_domain_processor_test.rb
new file mode 100644
index 0000000..1ea3023
--- /dev/null
+++ b/test/services/check_domain_processor_test.rb
@@ -0,0 +1,34 @@
+require "test_helper"
+
+class CheckDomainProcessorTest < ActiveSupport::TestCase
+  setup do
+    @processor = CheckDomainProcessor.new
+  end
+
+  test "process WhoisSyncJob for domain checks" do
+    domain = "domain.fr"
+    check = create(:check, :domain, :nil_dates, domain: domain)
+
+    mock_system_command("whois", domain, stdout: file_fixture("whois/domain.fr.txt").read) do
+      @processor.send(:process, check)
+    end
+
+    check.reload
+
+    assert_equal Time.new(2019, 2, 17, 0, 0, 0, 0), check.domain_expires_at
+  end
+
+  test "scope concerns only checks of kind 'domain'" do
+    domains = create_list(:check, 2, :domain)
+    create_list(:check, 2, :ssl)
+
+    assert_equal domains, @processor.send(:scope)
+  end
+
+  test "resolvers returns an array of methods returning a scope" do
+    assert_not_empty @processor.send(:resolvers)
+    @processor.send(:resolvers).each do |method|
+      assert_kind_of ActiveRecord::Relation, @processor.public_send(method)
+    end
+  end
+end
diff --git a/test/services/check_processor_test.rb b/test/services/check_processor_test.rb
index 66e1e53..d5c1387 100644
--- a/test/services/check_processor_test.rb
+++ b/test/services/check_processor_test.rb
@@ -1,31 +1,26 @@
 require "test_helper"
 
+class CheckDummyProcessor
+  include CheckProcessor
+  def scope
+    base_scope
+  end
+
+  def configuration_key
+    "checks_dummy"
+  end
+
+  def resolvers
+    %i[
+      resolve_expire_short_term
+      resolve_expire_long_term
+    ]
+  end
+end
+
 class CheckProcessorTest < ActiveSupport::TestCase
   setup do
-    @processor = CheckProcessor.new
-  end
-
-  test "process WhoisSyncJob for domain checks" do
-    domain = "domain.fr"
-    check = create(:check, :domain, :nil_dates, domain: domain)
-
-    mock_system_command("whois", domain, stdout: file_fixture("whois/domain.fr.txt").read) do
-      @processor.send(:process, check)
-    end
-
-    check.reload
-
-    assert_equal Time.new(2019, 2, 17, 0, 0, 0, 0), check.domain_expires_at
-  end
-
-  test "raises an error for an unsupported check kind" do
-    check = build(:check)
-
-    check.stub :kind, :unknown do
-      assert_raises ArgumentError do
-        @processor.send(:process, check)
-      end
-    end
+    @processor = CheckDummyProcessor.new
   end
 
   test "resolve_last_run_failed includes already and never succeeded" do
@@ -74,6 +69,14 @@ class CheckProcessorTest < ActiveSupport::TestCase
     assert_not_includes checks, c4
   end
 
+  test "resolve_all include all eligible checks" do
+    create(:check, :expires_next_week)
+    create(:check, :expires_next_week, last_run_at: 4.hours.ago)
+    create(:check, :last_runs_failed)
+
+    assert_equal @processor.send(:scope), @processor.resolve_all
+  end
+
   test "resolvers does not include checks recently executed" do
     c1 = create(:check, :expires_next_week)
     c2 = create(:check, :expires_next_week, last_run_at: 4.hours.ago)
@@ -113,7 +116,7 @@ class CheckProcessorTest < ActiveSupport::TestCase
       configuration.expect(:interval, 0.000001)
     end
 
-    processor = CheckProcessor.new(configuration)
+    processor = CheckDummyProcessor.new(configuration)
 
     mock = Minitest::Mock.new
     assert_stub = lambda { |actual_time|
diff --git a/test/services/check_ssl_processor_test.rb b/test/services/check_ssl_processor_test.rb
new file mode 100644
index 0000000..db6fa3c
--- /dev/null
+++ b/test/services/check_ssl_processor_test.rb
@@ -0,0 +1,35 @@
+require "test_helper"
+
+class CheckSSLProcessorTest < ActiveSupport::TestCase
+  setup do
+    @processor = CheckSSLProcessor.new
+  end
+
+  test "process SSLSyncJob for ssl checks" do
+    domain = "ssl0.domain.org"
+    check = create(:check, :ssl, :nil_dates, domain: domain)
+
+    response = file_fixture("ssl/ssl0.domain.org.txt").read
+    mock_system_command("check_http", ["-H '#{domain}'"], stdout: response) do
+      @processor.send(:process, check)
+    end
+
+    check.reload
+
+    assert_equal Time.new(2028, 6, 10, 9, 14, 18, 0), check.domain_expires_at
+  end
+
+  test "scope concerns only checks of kind 'ssl'" do
+    domains = create_list(:check, 2, :ssl)
+    create_list(:check, 2, :domain)
+
+    assert_equal domains, @processor.send(:scope)
+  end
+
+  test "resolvers returns an array of methods returning a scope" do
+    assert_not_empty @processor.send(:resolvers)
+    @processor.send(:resolvers).each do |method|
+      assert_kind_of ActiveRecord::Relation, @processor.public_send(method)
+    end
+  end
+end
diff --git a/test/services/ssl/parser_test.rb b/test/services/ssl/parser_test.rb
new file mode 100644
index 0000000..05566d6
--- /dev/null
+++ b/test/services/ssl/parser_test.rb
@@ -0,0 +1,53 @@
+require "test_helper"
+require "ssl/parser"
+require "ssl/errors"
+
+module SSL
+  class ParserTest < ActiveSupport::TestCase
+    test "should parse a SSL check response" do
+      parser = Parser.new("ssl0.domain.org")
+      domain = file_fixture("ssl/ssl0.domain.org.txt").read
+      response = parser.parse(domain)
+      assert_kind_of Response, response
+
+      assert_equal Time.new(2028, 6, 10, 9, 14, 18, 0), response.expire_at
+      assert response.expire_at.utc?
+    end
+
+    test "should parse a SSL check response in another format and convert it in UTC" do
+      parser = Parser.new("ssl1.domain.org")
+      domain = file_fixture("ssl/ssl1.domain.org.txt").read
+      response = parser.parse(domain)
+      assert_kind_of Response, response
+
+      assert_equal Time.new(2022, 8, 6, 0, 57, 0, 0), response.expire_at
+      assert response.expire_at.utc?
+    end
+
+    test "should raises DomainNotMatchError when parsed text does not match the domain" do
+      parser = Parser.new("anotherdomain.fr")
+      output = file_fixture("ssl/ssl1.domain.org.txt").read
+
+      assert_raises DomainNotMatchError do
+        parser.parse(output)
+      end
+    end
+    test "should raises InvalidResponseError when check response is not matched" do
+      parser = Parser.new("ssl100.invalid.org")
+      output = file_fixture("ssl/ssl100.invalid.org.txt").read
+
+      assert_raises InvalidResponseError do
+        parser.parse(output)
+      end
+    end
+
+    test "should raises InvalidDateError when a date is not in the expected format" do
+      parser = Parser.new("ssl101.invalid.org")
+      output = file_fixture("ssl/ssl101.invalid.org.txt").read
+
+      assert_raises InvalidDateError do
+        parser.parse(output)
+      end
+    end
+  end
+end
diff --git a/test/services/ssl_test.rb b/test/services/ssl_test.rb
new file mode 100644
index 0000000..5b98396
--- /dev/null
+++ b/test/services/ssl_test.rb
@@ -0,0 +1,74 @@
+require "test_helper"
+require "ssl"
+require "system_command"
+
+module SSL
+  class ServiceTest < ActiveSupport::TestCase
+    test "should run the command, return the result" do
+      result = OpenStruct.new(exit_status: 0)
+
+      mock_system_klass("check_http", ["-H 'example.org'"], result) do |system_klass|
+        service = Service.new("example.org", system_klass: system_klass)
+        assert_equal result, service.run_command
+      end
+    end
+
+    test "should raise an exception if exit status > 0" do
+      result = OpenStruct.new(exit_status: 1)
+
+      mock_system_klass("check_http", ["-H 'example.org'"], result) do |system_klass|
+        service = Service.new("example.org", system_klass: system_klass)
+
+        assert_raises SSLCommandError do
+          service.run_command
+        end
+      end
+    end
+
+    test "should parse from a command result" do
+      result = OpenStruct.new(
+        exit_status: 0,
+        stdout: file_fixture("ssl/ssl0.domain.org.txt").read,
+      )
+
+      service = Service.new("ssl0.domain.org")
+      assert_kind_of Response, service.parse(result)
+    end
+
+    test "should uses the command line arguments of the configuration" do
+      result = OpenStruct.new(exit_status: 0)
+      config = OpenStruct.new(check_http_args: "-f follow -I 127.0.0.1")
+
+      expected_args = ["-f follow -I 127.0.0.1", "-H 'example.org'"]
+      mock_system_klass("check_http", expected_args, result) do |system_klass|
+        service = Service.new("example.org", configuration: config, system_klass: system_klass)
+        assert_equal result, service.run_command
+      end
+    end
+
+    test "should uses the program path from the configuration" do
+      result = OpenStruct.new(exit_status: 0)
+      config = OpenStruct.new(check_http_path: "/usr/local/custom/path")
+
+      mock_system_klass("/usr/local/custom/path", ["-H 'example.org'"], result) do |system_klass|
+        service = Service.new("example.org", configuration: config, system_klass: system_klass)
+        assert_equal result, service.run_command
+      end
+    end
+
+    def mock_system_klass(program, command_args, result)
+      system_klass = Minitest::Mock.new
+      system_command = Minitest::Mock.new.expect(:execute, result)
+      system_klass.expect(:new, system_command) do |arg1, arg2, logger:|
+        arg1 == program &&
+          arg2 == command_args &&
+          logger.class == NullLogger
+      end
+
+      yield system_klass
+
+      system_klass.verify
+      system_command.verify
+    end
+  end
+end
diff --git a/test/test_helper.rb b/test/test_helper.rb
index fda0a43..91ae325 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -6,6 +6,7 @@ if !ENV["NO_COVERAGE"] && (ARGV.empty? || ARGV.include?("test/test_helper.rb"))
   SimpleCov.start "rails" do
     add_group "Notifier", "app/services/notifier"
     add_group "Whois", "app/services/whois"
+    add_group "SSL", "app/services/ssl"
     add_group "Services", "app/services"
     add_group "Policies", "app/policies"
   end