diff --git a/HowtoVarnish.md b/HowtoVarnish.md
index 442dd31b..b21c44a7 100644
--- a/HowtoVarnish.md
+++ b/HowtoVarnish.md
@@ -339,15 +339,7 @@ Le temps de mise en cache par défaut peut être défini avec l'option `-t` à [
 sub vcl_backend_response {
         set beresp.ttl = 1800s;
         #unset beresp.http.expires;
-        set beresp.http.cache-control = "max-age=1800";
-        set beresp.http.magicmarker = "1";
-}
-
-sub vcl_deliver {
-    if (resp.http.magicmarker) {
-    unset resp.http.magicmarker;
-    set resp.http.age = "0";
-    }
+        set beresp.http.Cache-Control = "max-age=1800";
 }
 ~~~
 
@@ -362,6 +354,17 @@ sub vcl_recv {
     if (req.http.Cookie ~ "(VARNISH|DRUPAL_UID)") {
         return (pass);
     }
+
+    if (req.http.cookie) {
+        set req.http.Cookie = regsuball(req.http.Cookie, "_gat=[^;]+(; )?", "");       # Google Analytics
+        set req.http.Cookie = regsuball(req.http.Cookie, "_ga=[^;]+(; )?", "");        # Google Analytics
+        set req.http.Cookie = regsuball(req.http.Cookie, "_gaq=[^;]+(; )?", "");       # Google Analytics
+        set req.http.Cookie = regsuball(req.http.Cookie, "__utm[^=]*=[^;]+(; )?", ""); # Google Analytics
+
+        if (req.http.cookie ~ "^ *$") {
+            unset req.http.cookie;
+        }
+    }
 }
 
 sub vcl_backend_response {