varnish and wordpress
Miguel González
miguel_3_gonzalez at yahoo.es
Sun Jan 29 17:43:59 CET 2017
I have enabled cache_limiter to public and I don´t see much difference
in my main website (I have added in Cpanel PHP 7.1 that setting), but
the truth is that in my main website was loading in 1 second.
Do I have to disable the expiresbytype entries in .htaccess?
Thanks,
Miguel
On 01/27/17 1:08 AM, Carlos Fernandez wrote:
> I think you could do that through the php_set command or its analog in
> Nginx (we use Apache). Those settings can also be modified on a per
> session basis through PHP functions so that an application could control
> it (WordPress doesn't), so you could in theory put them in
> wp-config.php. You do have to set cache_limiter first, otherwise PHP
> will ignore the expiration time setting. The idea here is that it's PHP
> that generates the Expires and Cache-Control headers when a backend
> request goes to WordPress, not the web server (Apache/Nginx/IIS/etc).
>
>
> On Thu, Jan 26, 2017 at 18:33 Miguel González
> <miguel_3_gonzalez at yahoo.es <mailto:miguel_3_gonzalez at yahoo.es>> wrote:
>
> thanks for this information.
>
> Wouldn´t it help just setting in .htaccess:
>
> ExpiresByType text/html "access 1 month"
>
> ?
>
> Miguel
>
>
>
> On 01/26/17 10:42 PM, Carlos Fernandez wrote:
> > Per php.net <http://php.net> <http://php.net>:
> >
> > "The cache limiter defines which cache control HTTP headers are
> sent to
> > the client. These headers determine the rules by which the page
> content
> > may be cached by the client and intermediate proxies. Setting the
> cache
> > limiter to /nocache/disallows any client/proxy caching. A value
> > of /public/ permits caching by proxies and the client,
> > whereas /private/ disallows caching by proxies and permits the
> client to
> > cache the contents."
> >
> > Varnish obeys the cache control headers in the backend response,
> > therefore this setting (and cache_expires) indirectly affects
> Varnish by
> > way of the headers. You could alter them in VCL, but that takes
> more work.
> >
> >
> > On Thu, Jan 26, 2017 at 16:29 Miguel González
> > <miguel_3_gonzalez at yahoo.es <mailto:miguel_3_gonzalez at yahoo.es>
> <mailto:miguel_3_gonzalez at yahoo.es
> <mailto:miguel_3_gonzalez at yahoo.es>>> wrote:
> >
> > What is the relation of this setting with Varnish? I´m not
> finding any
> > information about this setting and Varnish.
> >
> > Thanks!
> >
> > Miguel
> >
> >
> > On 01/26/17 9:22 PM, Carlos Fernandez wrote:
> > > That VCL looks similar to what we use. What does the
> > > "session.cache_limiter" setting in your php.ini file say? If
> it's
> > set to
> > > "nocache" (the default), then PHP will always respond with
> an Expires
> > > header set in the past so that Varnish will not cache it.
> > >
> > > On Thu, Jan 26, 2017 at 2:25 PM, Miguel González
> > > <miguel_3_gonzalez at yahoo.es
> <mailto:miguel_3_gonzalez at yahoo.es>
> <mailto:miguel_3_gonzalez at yahoo.es <mailto:miguel_3_gonzalez at yahoo.es>>
> > <mailto:miguel_3_gonzalez at yahoo.es
> <mailto:miguel_3_gonzalez at yahoo.es>
> > <mailto:miguel_3_gonzalez at yahoo.es
> <mailto:miguel_3_gonzalez at yahoo.es>>>> wrote:
> > >
> > > Dear all,
> > >
> > > Probably since I´m a newbie I assume a cache system
> makes a
> > "static"
> > > copy of a web and serve it to the browser. I have several
> > Wordpress
> > > sites, same backend and speed load differs quite much
> (from 1
> > second to
> > > 6 seconds). Obviously size matters but shouldn´t load all
> > items (CSS,
> > > JS, images) almost at the same time? Webpagetest shows it´s
> > not the
> > > case.
> > >
> > > I have tried to use together with Varnish other plugin
> > caches as W3
> > > Total Cache but the performance is even worse.
> > >
> > > Maybe my assumptions are wrong or my VCL is wrong.
> > >
> > > I have 4.1 as was suggested by someone from the list.
> > >
> > > Thanks!
> > >
> > > Miguel
> > >
> > > my default.vcl:
> > >
> > > #
> > > # This is an example VCL file for Varnish.
> > > #
> > > # It does not do anything by default, delegating control
> to the
> > > # builtin VCL. The builtin VCL is called when there is
> no explicit
> > > # return statement.
> > > #
> > > # See the VCL chapters in the Users Guide at
> > > https://www.varnish-cache.org/docs/
> > > <https://www.varnish-cache.org/docs/>
> > > # and http://varnish-cache.org/trac/wiki/VCLExamples
> > > <http://varnish-cache.org/trac/wiki/VCLExamples> for more
> > examples.
> > >
> > > # Marker to tell the VCL compiler that this VCL has been
> > adapted to the
> > > # new 4.0 format.
> > > vcl 4.0;
> > >
> > > import std;
> > >
> > > # Default backend definition. Set this to point to your
> > content server.
> > > backend default {
> > > .host = "127.0.0.1";
> > > .port = "82";
> > > .connect_timeout = 600s;
> > > .first_byte_timeout = 600s;
> > > .between_bytes_timeout = 600s;
> > >
> > >
> > > }
> > >
> > > acl purge {
> > > "localhost";
> > > "127.0.0.1";
> > > }
> > >
> > >
> > > # This function is used when a request is send by a HTTP
> client
> > > (Browser)
> > > sub vcl_recv {
> > >
> > > # remove ?ver=xxxxx strings from urls so css and js
> > files are
> > > cached.
> > > # Watch out when upgrading WordPress, need to
> restart
> > Varnish or
> > > flush cache.
> > > set req.url = regsub(req.url, "\?ver=.*$", "");
> > >
> > > # Remove "replytocom" from requests to make caching
> > better.
> > > set req.url = regsub(req.url,
> "\?replytocom=.*$", "");
> > >
> > > #We pass real IP and Port to the backend
> > >
> > > if (req.http.X-Forwarded-Proto == "https" ) {
> > > set req.http.X-Port = "443";
> > > } else {
> > > set req.http.X-Port = "80";
> > > }
> > >
> > > set req.http.X-Forwarded-For =
> > regsub(req.http.X-Forwarded-For,
> > > "^([^,]+),?.*$", "\1");
> > >
> > >
> > > # Normalize the header, remove the port (in case
> > you're testing
> > > this on various TCP ports)
> > >
> > > set req.http.Host = regsub(req.http.Host,
> ":[0-9]+", "");
> > >
> > > # 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*",
> > "");
> > >
> > >
> > > # Allow purging from ACL
> > > if (req.method == "PURGE") {
> > > # If not allowed then a error 405 is
> returned
> > > if (!client.ip ~ purge) {
> > > return(synth(405, "This IP is not
> > allowed to
> > > send PURGE requests."));
> > > }
> > > # If allowed, do a cache_lookup ->
> vlc_hit() or
> > > vlc_miss()
> > > return (purge);
> > > }
> > >
> > > # Post requests will not be cached
> > > #if (req.http.Authorization || req.method ==
> "POST") {
> > > # return (pass);
> > > #}
> > >
> > > # Pass anything other than GET and HEAD directly.
> > > if (req.method != "GET" && req.method != "HEAD") {
> > > return( pass );
> > > } /* We only deal with GET and HEAD by
> default */
> > >
> > >
> > > #Woocommerce don't cache :
> > > if (req.url ~
> > >
> >
> "^/(cart|my-account/*|checkout|addons|logout|lost-password|product/*)")
> > > {
> > > return (pass);
> > > }
> > >
> > > #Woocommerce add to cart pass :
> > > if (req.url ~ "\?add-to-cart=" ) {
> > > return (pass);
> > > }
> > > if (req.url ~ "/wp-cron.php" || req.url ~
> > "preview=true") {
> > > return (pass);
> > > }
> > >
> > > # Woocommerce
> > > if (req.url ~ "(cart|my-account|checkout|addons)") {
> > > return (pass);
> > > }
> > > if ( req.url ~ "\?add-to-cart=" ) {
> > > return (pass);
> > > }
> > >
> > >
> > > # --- WordPress specific configuration
> > > # Did not cache the admin and login pages
> > > if (req.url ~
> > >
> >
> "nocache|cart|my-account|checkout|addons|tienda|mi-cuenta|carro|producto/*|login|wp-admin|wp-(comments-post|login|signup|activate|mail|cron)\.php|preview\=true|admin-ajax\.php|xmlrpc\.php|bb-admin|whm-server-status|server-status|control\.php|bb-login\.php|bb-reset-password\.php|register\.php")
> > > {
> > > return (pass);
> > > }
> > >
> > > if (req.url ~ "(ajax|dynamic|custom)") {
> > > return(pass);
> > > }
> > >
> > > # Remove the "has_js" cookie
> > > set req.http.Cookie = regsuball(req.http.Cookie,
> > "has_js=[^;]+(;
> > > )?", "");
> > >
> > > # Remove any Google Analytics based cookies
> > > set req.http.Cookie = regsuball(req.http.Cookie,
> > "__utm.=[^;]+(;
> > > )?", "");
> > >
> > > # Remove the Quant Capital cookies (added by
> some plugin,
> > > all __qca)
> > > set req.http.Cookie = regsuball(req.http.Cookie,
> > "__qc.=[^;]+(;
> > > )?", "");
> > >
> > > # Remove the wp-settings-1 cookie
> > > set req.http.Cookie = regsuball(req.http.Cookie,
> > > "wp-settings-1=[^;]+(; )?", "");
> > >
> > > # Remove the wp-settings-time-1 cookie
> > > set req.http.Cookie = regsuball(req.http.Cookie,
> > > "wp-settings-time-1=[^;]+(; )?", "");
> > >
> > > # Remove the wp test cookie
> > > set req.http.Cookie = regsuball(req.http.Cookie,
> > > "wordpress_test_cookie=[^;]+(; )?", "");
> > >
> > > # Are there cookies left with only spaces or
> that are
> > empty?
> > > if (req.http.cookie ~ "^ *$") {
> > > unset req.http.cookie;
> > > }
> > >
> > > # Cache the following files extensions
> > > if (req.url ~
> "\.(txt|css|js|png|gif|jp(e)?g|swf|ico)") {
> > > unset req.http.cookie;
> > > }
> > >
> > > # Normalize Accept-Encoding header and compression
> > > #
> > https://www.varnish-cache.org/docs/3.0/tutorial/vary.html
> > > <https://www.varnish-cache.org/docs/3.0/tutorial/vary.html>
> > > if (req.http.Accept-Encoding) {
> > > # Do no compress compressed files...
> > > if (req.url ~
> > > "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg)$") {
> > > 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 {
> > > unset req.http.Accept-Encoding;
> > > }
> > > }
> > >
> > > # Check the cookies for wordpress-specific items
> > > if (req.http.Cookie ~ "wordpress_" ||
> req.http.Cookie ~
> > > "comment_") {
> > > return (pass);
> > > }
> > > if (!req.http.cookie) {
> > > unset req.http.cookie;
> > > }
> > >
> > > # --- End of WordPress specific configuration
> > >
> > > # Did not cache HTTP authentication and HTTP Cookie
> > > if (req.http.Authorization || req.http.Cookie) {
> > > # Not cacheable by default
> > > return (pass);
> > > }
> > >
> > > # Cache all others requests
> > > return (hash);
> > > }
> > >
> > > sub vcl_pipe {
> > > return (pipe);
> > > }
> > >
> > > sub vcl_pass {
> > > return (fetch);
> > > }
> > >
> > > # The data on which the hashing will take place
> > > sub vcl_hash {
> > > hash_data(req.url);
> > > if (req.http.host) {
> > > hash_data(req.http.host);
> > > } else {
> > > hash_data(server.ip);
> > > }
> > >
> > > # If the client supports compression, keep that in a
> > > different cache
> > > if (req.http.Accept-Encoding) {
> > > hash_data(req.http.Accept-Encoding);
> > > }
> > >
> > > return (lookup);
> > > }
> > >
> > > # This function is used when a request is sent by our
> backend
> > (Nginx
> > > server)
> > > sub vcl_backend_response {
> > > # Remove some headers we never want to see
> > > unset beresp.http.Server;
> > > unset beresp.http.X-Powered-By;
> > >
> > > if (beresp.http.content-type ~
> > > "(text|javascript|application/x-font-woff)") {
> > > set beresp.do_gzip = true;
> > > }
> > >
> > > # For static content strip all backend cookies
> > > if (bereq.url ~
> "\.(css|js|png|gif|jp(e?)g)|swf|ico") {
> > > unset beresp.http.cookie;
> > > }
> > > # Don't store backend
> > > if (bereq.url ~ "wp-(login|admin)" || bereq.url ~
> > > "preview=true") {
> > > set beresp.uncacheable = true;
> > > set beresp.ttl = 30s;
> > > return (deliver);
> > > }
> > >
> > > # Only allow cookies to be set if we're in admin
> area
> > > if (!(bereq.url ~
> > >
> >
> "(wp-login|cart|my-account|checkout|addons|tienda|mi-cuenta|carro|producto/*|login|wp-admin|preview=true)"))
> > > {
> > > unset beresp.http.set-cookie;
> > > }
> > >
> > > # don't cache response to posted requests or
> those with
> > > basic auth
> > > if ( bereq.method == "POST" ||
> > bereq.http.Authorization ) {
> > > set beresp.uncacheable = true;
> > > set beresp.ttl = 120s;
> > > return (deliver);
> > > }
> > >
> > > # don't cache search results
> > > if ( bereq.url ~ "\?s=" ){
> > > set beresp.uncacheable = true;
> > > set beresp.ttl = 120s;
> > > return (deliver);
> > > }
> > >
> > > # only cache status ok
> > > if ( beresp.status != 200 ) {
> > > set beresp.uncacheable = true;
> > > set beresp.ttl = 120s;
> > > return (deliver);
> > > }
> > >
> > > # A TTL of 24h
> > > set beresp.ttl = 24h;
> > > # Define the default grace period to serve
> cached content
> > > #set beresp.grace = 30s;
> > > set beresp.grace = 1h;
> > >
> > > return (deliver);
> > > }
> > >
> > > # The routine when we deliver the HTTP request to the user
> > > # Last chance to modify headers that are sent to the client
> > > sub vcl_deliver {
> > > if (obj.hits > 0) {
> > > set resp.http.X-Cache = "cached";
> > > } else {
> > > set resp.http.x-Cache = "uncached";
> > > }
> > >
> > > # Remove some headers: PHP version
> > > unset resp.http.X-Powered-By;
> > >
> > > # Remove some headers: Apache version & OS
> > > unset resp.http.Server;
> > >
> > > # Remove some heanders: Varnish
> > > unset resp.http.Via;
> > > unset resp.http.X-Varnish;
> > >
> > > return (deliver);
> > > }
> > >
> > > sub vcl_init {
> > > return (ok);
> > > }
> > >
> > > sub vcl_fini {
> > > return (ok);
> > > }
> > >
> > > _______________________________________________
> > > varnish-misc mailing list
> > > varnish-misc at varnish-cache.org
> <mailto:varnish-misc at varnish-cache.org>
> > <mailto:varnish-misc at varnish-cache.org
> <mailto:varnish-misc at varnish-cache.org>>
> > <mailto:varnish-misc at varnish-cache.org
> <mailto:varnish-misc at varnish-cache.org>
> > <mailto:varnish-misc at varnish-cache.org
> <mailto:varnish-misc at varnish-cache.org>>>
> > >
> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
> > >
> >
> <https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc>
> > >
> > >
> > >
> > >
> > > --
> > >
> > > Best regards,
> > >
> > > --
> > >
> > > Carlos M. Fernández
> > >
> > > Enterprise Systems Manager
> > >
> > > *Saint Joseph’s University*
> > >
> > > Philadelphia PA 19131
> > >
> > > T: +1 610 660 1501
> > >
> >
> >
> > _______________________________________________
> > varnish-misc mailing list
> > varnish-misc at varnish-cache.org
> <mailto:varnish-misc at varnish-cache.org>
> <mailto:varnish-misc at varnish-cache.org
> <mailto:varnish-misc at varnish-cache.org>>
> > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
> >
> > --
> >
> > Best regards,
> >
> > --
> >
> > Carlos M. Fernández
> >
> > Enterprise Systems Manager
> >
> > *Saint Joseph’s University*
> >
> > Philadelphia PA 19131
> >
> > T: +1 610 660 1501
> >
>
>
> _______________________________________________
> varnish-misc mailing list
> varnish-misc at varnish-cache.org <mailto:varnish-misc at varnish-cache.org>
> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
>
> --
>
> Best regards,
>
> --
>
> Carlos M. Fernández
>
> Enterprise Systems Manager
>
> *Saint Joseph’s University*
>
> Philadelphia PA 19131
>
> T: +1 610 660 1501
>
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