Varnish Cache & Ad Impressions
Ayberk Kimsesiz
ayberk.kimsesiz at gmail.com
Wed Aug 31 21:42:19 CEST 2016
Hi Guillaume,
Varnish truly has a serious affect on impressions of banners. This month
was a substantial lost. What is your advise on this?
We are very pleased with Varnish but also experiencing a loss of income.
Ad code:
<script data-adfscript="adx.adform.net/adx/?mid=220975&rnd=%%ADFRND%%
"></script>
<script src="//s1.adform.net/banners/scripts/adx.js" async defer></script>
Thanks,
Ayberk
2016-08-22 14:10 GMT+03:00 Ayberk Kimsesiz <ayberk.kimsesiz at gmail.com>:
> Hi,
>
> We are using the default.vcl file as follows. Our website is getting
> higher traffic each day but there is a decline in ads' impression values.
> We are using .js in ad codes. Do you think the following settings might be
> the problem?
>
> /* SET THE HOST AND PORT OF WORDPRESS
> * *********************************************************/
> vcl 4.0;
> import std;
>
> backend default {
> .host = "********";
> .port = "8080";
> .connect_timeout = 600s;
> .first_byte_timeout = 600s;
> .between_bytes_timeout = 600s;
> .max_connections = 800;
> }
>
> # SET THE ALLOWED IP OF PURGE REQUESTS
> # ##########################################################
> acl purge {
> "localhost";
> "127.0.0.1";
> }
>
> #THE RECV FUNCTION
> # ##########################################################
> sub vcl_recv {
> if (req.http.Host == "****.com/forum" || req.url ~ "forum") {
> return (pass);
> }
>
> # set realIP by trimming CloudFlare IP which will be used for various
> checks
> set req.http.X-Actual-IP = regsub(req.http.X-Forwarded-For, "[,
> ].*$", "");
>
> # FORWARD THE IP OF THE REQUEST
> if (req.restarts == 0) {
> if (req.http.x-forwarded-for) {
> set req.http.X-Forwarded-For =
> req.http.X-Forwarded-For + ", " + client.ip;
> } else {
> set req.http.X-Forwarded-For = client.ip;
> }
> }
>
> # Purge request check sections for hash_always_miss, purge and ban
> # BLOCK IF NOT IP is not in purge acl
> # ##########################################################
>
> # Enable smart refreshing using hash_always_miss
> if (req.http.Cache-Control ~ "no-cache") {
> if (client.ip ~ purge || !std.ip(req.http.X-Actual-IP, "1.2.3.4") ~
> purge) {
> set req.hash_always_miss = true;
> }
> }
>
> if (req.method == "PURGE") {
> if (!client.ip ~ purge || !std.ip(req.http.X-Actual-IP, "1.2.3.4") ~
> purge) {
> return(synth(405,"Not allowed."));
> }
> return (purge);
>
> }
> if (req.method == "BAN") {
> # Same ACL check as above:
> if (!client.ip ~ purge || !std.ip(req.http.X-Actual-IP, "1.2.3.4")
> ~ purge) {
> return(synth(403, "Not allowed."));
> }
> ban("req.http.host == " + req.http.host +
> " && req.url == " + req.url);
>
> # Throw a synthetic page so the
> # request won't go to the backend.
> return(synth(200, "Ban added"));
> }
>
>
> # Unset cloudflare cookies
> # Remove has_js and CloudFlare/Google Analytics __* cookies.
> set req.http.Cookie = regsuball(req.http.Cookie,
> "(^|;\s*)(_[_a-z]+|has_js)=[^;]*", "");
> # Remove a ";" prefix, if present.
> set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", "");
>
> # For Testing: If you want to test with Varnish passing (not caching)
> uncomment
> # return( pass );
>
> # FORWARD THE IP OF THE REQUEST
> if (req.restarts == 0) {
> if (req.http.x-forwarded-for) {
> set req.http.X-Forwarded-For =
> req.http.X-Forwarded-For + ", " + client.ip;
> } else {
> set req.http.X-Forwarded-For = client.ip;
> }
> }
>
> # DO NOT CACHE RSS FEED
> if (req.url ~ "/feed(/)?") {
> return ( pass );
> }
>
> ## Do not cache search results, comment these 3 lines if you do want
> to cache them
>
> if (req.url ~ "/\?s\=") {
> return ( pass );
> }
>
> # CLEAN UP THE ENCODING HEADER.
> # SET TO GZIP, DEFLATE, OR REMOVE ENTIRELY. WITH VARY ACCEPT-ENCODING
> # VARNISH WILL CREATE SEPARATE CACHES FOR EACH
> # DO NOT ACCEPT-ENCODING IMAGES, ZIPPED FILES, AUDIO, ETC.
> # ##########################################################
> if (req.http.Accept-Encoding) {
> if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg)$") {
> # No point in compressing these
> unset req.http.Accept-Encoding;
> } elsif (req.http.Accept-Encoding ~ "gzip") {
> set req.http.Accept-Encoding = "gzip";
> } elsif (req.http.Accept-Encoding ~ "deflate") {
> set req.http.Accept-Encoding = "deflate";
> } else {
> # unknown algorithm
> unset req.http.Accept-Encoding;
> }
> }
>
> # PIPE ALL NON-STANDARD REQUESTS
> # ##########################################################
> if (req.method != "GET" &&
> req.method != "HEAD" &&
> req.method != "PUT" &&
> req.method != "POST" &&
> req.method != "TRACE" &&
> req.method != "OPTIONS" &&
> req.method != "DELETE") {
> return (pipe);
> }
>
> # ONLY CACHE GET AND HEAD REQUESTS
> # ##########################################################
> if (req.method != "GET" && req.method != "HEAD") {
> return (pass);
> }
>
> # OPTIONAL: DO NOT CACHE LOGGED IN USERS (THIS OCCURS IN FETCH TOO,
> EITHER
> # COMMENT OR UNCOMMENT BOTH
> # ##########################################################
> if ( req.http.cookie ~ "wordpress_logged_in" ) {
> return( pass );
> }
>
> # IF THE REQUEST IS NOT FOR A PREVIEW, WP-ADMIN OR WP-LOGIN
> # THEN UNSET THE COOKIES
> # ##########################################################
> if (!(req.url ~ "wp-(login|admin)")
> && !(req.url ~ "&preview=true" )
> ){
> unset req.http.cookie;
> }
>
> # IF BASIC AUTH IS ON THEN DO NOT CACHE
> # ##########################################################
> if (req.http.Authorization || req.http.Cookie) {
> return (pass);
> }
>
> # IF YOU GET HERE THEN THIS REQUEST SHOULD BE CACHED
> # ##########################################################
> return (hash);
> # This is for phpmyadmin
> if (req.http.Host == "ki1.org") {
> return (pass);
> }
>
> if (req.http.Host == "mysql.ki1.org") {
> return (pass);
> }
>
> }
>
> # HIT FUNCTION
> # ##########################################################
> sub vcl_hit {
> # IF THIS IS A PURGE REQUEST THEN DO THE PURGE
> # ##########################################################
> if (req.method == "PURGE") {
> #
> # This is now handled in vcl_recv.
> #
> # purge;
> return (synth(200, "Purged."));
> }
> return (deliver);
> }
>
> # MISS FUNCTION
> # ##########################################################
> sub vcl_miss {
> if (req.method == "PURGE") {
> #
> # This is now handled in vcl_recv.
> #
> # purge;
> return (synth(200, "Purged."));
> }
> return (fetch);
> }
>
> # FETCH FUNCTION
> # ##########################################################
> sub vcl_backend_response {
> # I SET THE VARY TO ACCEPT-ENCODING, THIS OVERRIDES W3TC
> # TENDANCY TO SET VARY USER-AGENT. YOU MAY OR MAY NOT WANT
> # TO DO THIS
> # ##########################################################
> set beresp.http.Vary = "Accept-Encoding";
>
> # IF NOT WP-ADMIN THEN UNSET COOKIES AND SET THE AMOUNT OF
> # TIME THIS PAGE WILL STAY CACHED (TTL)
> # ##########################################################
> if (!(bereq.url ~ "wp-(login|admin)|forum") && !bereq.http.cookie ~
> "wordpress_logged_in" && !bereq.http.host == "******.com/forum" ) {
> unset beresp.http.set-cookie;
> set beresp.ttl = 52w;
> # set beresp.grace =1w;
> }
>
>
>
> if (beresp.ttl <= 0s ||
> beresp.http.Set-Cookie ||
> beresp.http.Vary == "*") {
> set beresp.ttl = 120 s;
> # set beresp.ttl = 120s;
> set beresp.uncacheable = true;
> return (deliver);
> }
>
> return (deliver);
> }
>
> # DELIVER FUNCTION
> # ##########################################################
> sub vcl_deliver {
> # IF THIS PAGE IS ALREADY CACHED THEN RETURN A 'HIT' TEXT
> # IN THE HEADER (GREAT FOR DEBUGGING)
> # ##########################################################
> if (obj.hits > 0) {
> set resp.http.X-Cache = "HIT";
> # IF THIS IS A MISS RETURN THAT IN THE HEADER
> # ##########################################################
> } else {
> set resp.http.X-Cache = "MISS";
> }
> }
>
>
> 2016-08-16 19:42 GMT+03:00 Guillaume Quintard <guillaume at varnish-software.
> com>:
>
>> Maybe, what is it supposed to do, why is it there and is any of your ad
>> frameworks affected by this?
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.varnish-cache.org/lists/pipermail/varnish-misc/attachments/20160831/8995d952/attachment-0001.html>
More information about the varnish-misc
mailing list