Nginx ngx_pagespeed and varnish but server responded slow.How to fix
Hello, i have VPS run wordpress using Nginx pagespeed and varnish 5 . here is my configuration
nginx.conf
```
# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/
user nginx;
worker_processes 2;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
# log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#GaChoi
set_real_ip_from 127.0.0.1;
real_ip_header X-Forwarded-For;
log_format main '$remote_addr - $remote_user [$time_local] $status '
'"$request" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
#End
# access_log /var/log/nginx/access.log main;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
types_hash_max_size 4096;
server_tokens off;
#Gachoi
keepalive_timeout 10;
client_body_timeout 60;
client_header_timeout 60;
client_body_buffer_size 10k;
client_header_buffer_size 1k;
large_client_header_buffers 4 8k;
send_timeout 60;
client_max_body_size 8m;
#
# set header
#
proxy_set_header Host $http_host;
proxy_set_header X-Remote-Addr $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
fastcgi_buffers 16 64k;
fastcgi_buffer_size 64k;
fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
#gzip on;
# gzip_vary on;
# gzip_disable "MSIE [1-6]\.";
# gzip_static on;
# gzip_min_length 500;
# gzip_buffers 32 8k;
# gzip_http_version 1.0;
# gzip_comp_level 5;
# gzip_proxied any;
# gzip_types text/plain text/css text/xml application/javascript application/x-javascript application/xml application/xml+rss application/ecmascript application/json image/svg+xml;
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;
}
Myserver.conf
# Define a mapping used to mark HTML as uncacheable.
map $upstream_http_content_type $new_cache_control_header_val {
default $upstream_http_cache_control;
"~*text/html" "no-cache, max-age=0";
}
# enable ngx_pagespeed
pagespeed on;
pagespeed MessageBufferSize 100000;
pagespeed FileCachePath /var/ngx_pagespeed_cache;
pagespeed FileCacheSizeKb 102400;
pagespeed FileCacheCleanIntervalMs 3600000;
pagespeed FileCacheInodeLimit 500000;
pagespeed FileCacheCleanIntervalMs -1;
pagespeed LRUCacheKbPerProcess 1024;
pagespeed LRUCacheByteLimit 8192;
pagespeed DownstreamCachePurgeLocationPrefix http://localhost:80;
pagespeed DownstreamCacheRebeaconingKey "abe02e86-1f0d-420a-80f4-0c4d4add2d94";
pagespeed DownstreamCacheRewrittenPercentageThreshold 80;
pagespeed ProcessScriptVariables on;
pagespeed UseNativeFetcher on;
resolver 8.8.8.8;
pagespeed CreateSharedMemoryMetadataCache "/var/ngx_pagepspeed_cache/" 51200;
pagespeed DefaultSharedMemoryCacheKB 50000;
pagespeed ShmMetadataCacheCheckpointIntervalSec 300;
pagespeed FetchWithGzip on;
pagespeed InPlaceResourceOptimization on;
pagespeed InPlaceSMaxAgeSec 10;
pagespeed EnableFilters in_place_optimize_for_browser;
pagespeed RateLimitBackgroundFetches off;
pagespeed HttpCacheCompressionLevel 9;
pagespeed ClearInheritedScripts;
# let's speed up PageSpeed by storing it in the super duper fast memcached
pagespeed MemcachedThreads 1;
pagespeed MemcachedServers "localhost:11211";
pagespeed MemcachedTimeoutUs 1000000;
pagespeed EnableCachePurge on;
pagespeed CacheFragment some_token;
# disable CoreFilters
pagespeed RewriteLevel PassThrough;
# enable collapse whitespace filter
pagespeed EnableFilters collapse_whitespace;
# enable JavaScript library offload
pagespeed EnableFilters canonicalize_javascript_libraries;
# combine multiple CSS files into one
pagespeed EnableFilters combine_css;
# combine multiple JavaScript files into one
pagespeed EnableFilters combine_javascript;
# remove tags with default attributes
pagespeed EnableFilters elide_attributes;
# improve resource cacheability
pagespeed EnableFilters extend_cache;
# flatten CSS files by replacing @import with the imported file
pagespeed EnableFilters flatten_css_imports;
pagespeed CssFlattenMaxBytes 5120;
# defer the loading of images which are not visible to the client
pagespeed EnableFilters lazyload_images;
# enable JavaScript minification
pagespeed EnableFilters rewrite_javascript;
# enable image optimization
pagespeed EnableFilters rewrite_images;
# pre-solve DNS lookup
pagespeed EnableFilters insert_dns_prefetch;
# rewrite CSS to load page-rendering CSS rules first.
pagespeed EnableFilters prioritize_critical_css;
server {
# PageSpeed's beacon dependent filters need the cache to let some requests
# through to the backend. This code below depends on the ngx_set_misc
# module and randomly passes 5% of traffic to the backend for rebeaconing.
# set $should_beacon_header_val "";
# set_random $rand 0 100;
# if ($rand ~* "^[01]$") {
# set $should_beacon_header_val "abe02e86-1f0d-420a-80f4-0c4d4add2d94";
# set $bypass_cache 1;
# }
listen 127.0.0.1:8080;
root /var/www/html/mayxonghoispa;
index index.php index.html index.htm index.php;
server_name www.mayxonghoispa.vn mayxonghoispa.vn;
if ($uri ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+") {
set $bypass_cache "1";
}
location = /favicon.ico {
log_not_found off;
access_log off;
}
location = /robots.txt {
allow all;
log_not_found off;
access_log off;
}
# Deny all attempts to access hidden files such as .htaccess, .htpasswd, .DS_Store (Mac).
location ~ /\. {
deny all;
access_log off;
log_not_found off;
}
location ~* /(?:uploads|files)/.*\.php$ {
deny all;
access_log off;
log_not_found off;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
location / {
root /var/www/html/mayxonghoispa;
index index.php index.html index.htm;
try_files $uri $uri/ $uri.html $uri.php /index.php?q=$uri&$args;
}
location ~ ([^/]*)sitemap(.*)\.x(m|s)l$ {
## this redirects sitemap.xml to /sitemap_index.xml
rewrite ^/sitemap\.xml$ /sitemap_index.xml permanent;
## this makes the XML sitemaps work
rewrite ^/([a-z]+)?-?sitemap\.xsl$ /index.php?xsl=$1 last;
rewrite ^/sitemap_index\.xml$ /index.php?sitemap=1 last;
rewrite ^/([^/]+?)-sitemap([0-9]+)?\.xml$ /index.php?sitemap=$1&sitemap_n=$2 last;
## The following lines are optional for the premium extensions
## News SEO
rewrite ^/news-sitemap\.xml$ /index.php?sitemap=wpseo_news last;
## Local SEO
rewrite ^/locations\.kml$ /index.php?sitemap=wpseo_local_kml last;
rewrite ^/geo-sitemap\.xml$ /index.php?sitemap=wpseo_local last;
## Video SEO
rewrite ^/video-sitemap\.xsl$ /index.php?xsl=video last;
access_log off;
}
location ~ \.php$ {
try_files $uri =404;
include /etc/nginx/fastcgi_params;
fastcgi_read_timeout 300;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_intercept_errors on;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_pass unix:/run/php-fpm/www.sock;
}
location @nocache {
add_header X-Cache-Engine "not cached";
fastcgi_pass unix:/run/php-fpm/www.sock;
}
location ~ ^/slow-proxy {
proxy_read_timeout 120; # <---
}
#End
location ~* \.(jpg|jpeg|gif|png|css|js|ico|xml)$ {
access_log off;
log_not_found off;
expires 365d;
}
location = /xmlrpc.php {
deny all;
access_log off;
log_not_found off;
}
include /var/www/html/mayxonghoispa/nginx.conf;
```
And my default.vcl
```
vcl 4.0;
# Based on: https://github.com/mattiasgeniar/varnish-4.0-configuration-templates/blob/master/default.vcl
import std;
import directors;
backend mayxonghoispa { # Define one backend
.host = "127.0.0.1"; # IP or Hostname of backend
.port = "8080"; # Port Apache or whatever is listening
.max_connections = 200; # That's it
# .probe = {
# .url = "/"; # short easy way (GET /)
# # We prefer to only do a HEAD /
# .request =
# "HEAD / HTTP/1.1"
# "Host: localhost"
# "Connection: close"
# "User-Agent: Varnish Health Probe";
# .interval = 5s; # check the health of each backend every 5 seconds
# .timeout = 5s; # timing out after 1 second.
# .window = 5; # If 3 out of the last 5 polls succeeded the backend is considered healthy, otherwise it will be marked as sick
# .threshold = 3;
# }
.first_byte_timeout = 300s; # How long to wait before we receive a first byte from our backend?
.connect_timeout = 300s; # How long to wait for a backend connection?
.between_bytes_timeout = 300s; # How long to wait between bytes received from our backend?
}
acl purge {
# ACL we'll use later to allow purges
"localhost";
"127.0.0.1";
"::1";
}
/*
acl editors {
# ACL to honor the "Cache-Control: no-cache" header to force a refresh but only from selected IPs
"localhost";
"127.0.0.1";
"::1";
}
*/
sub vcl_init {
# Called when VCL is loaded, before any requests pass through it.
# Typically used to initialize VMODs.
new vdir = directors.round_robin();
vdir.add_backend(mayxonghoispa);
}
sub vcl_recv {
# Called at the beginning of a request, after the complete request has been received and parsed.
# Its purpose is to decide whether or not to serve the request, how to do it, and, if applicable,
# which backend to use.
# also used to modify the request
if (req.url ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+") {
return (pass);
}
set req.backend_hint = vdir.backend(); # send all traffic to the vdir director
# 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 the proxy header (see https://httpoxy.org/#mitigate-varnish)
unset req.http.proxy;
# Normalize the query arguments
# set req.url = std.querysort(req.url);
if (req.url !~ "wp-admin") {
set req.url = std.querysort(req.url);
}
# Tell PageSpeed not to use optimizations specific to this request.
set req.http.PS-CapabilityList = "fully general optimizations only";
# Don't allow external entities to force beaconing.
unset req.http.PS-ShouldBeacon;
# Allow purging
if (req.method == "PURGE") {
if (!client.ip ~ purge) { # purge is the ACL defined at the begining
# Not from an allowed IP? Then die with an error.
return (synth(405, "This IP is not allowed to send PURGE requests."));
}
# If you got this stage (and didn't error out above), purge the cached result
return (purge);
}
# 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]+", "");
# set or append the client.ip to X-Forwarded-For header. Important for logging and correct IPs.
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 AJAX requests.
if (req.http.X-Requested-With == "XMLHttpRequest") {
return(pass);
}
# Post requests will not be cached
if (req.http.Authorization || req.method == "POST") {
return (pass);
}
# Dont Cache WordPress post pages and edit pages
if (req.url ~ "(wp-admin|post\.php|edit\.php|wp-login)") {
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);
}
# Only deal with "normal" types
if (req.method != "GET" &&
req.method != "HEAD" &&
req.method != "PUT" &&
req.method != "POST" &&
req.method != "TRACE" &&
req.method != "OPTIONS" &&
req.method != "PATCH" &&
req.method != "DELETE") {
/* Non-RFC2616 or CONNECT which is weird. */
/*Why send the packet upstream, while the visitor is using a non-valid HTTP method? */
return(synth(404, "Non-valid HTTP method!"));
}
# Implementing websocket support (https://www.varnish-cache.org/docs/4.0/users-guide/vcl-example-websockets.html)
if (req.http.Upgrade ~ "(?i)websocket") {
return (pipe);
}
# Only cache GET or HEAD requests. This makes sure the POST requests are always passed.
if (req.method != "GET" && req.method != "HEAD") {
return (pass);
}
# Woocommerce
if (req.url ~ "(cart|my-account|checkout|addons)") {
return (pass);
}
if ( req.url ~ "\?add-to-cart=" ) {
return (pass);
}
# Only deal with "normal" types
if (req.method != "GET" &&
req.method != "HEAD" &&
req.method != "PUT" &&
req.method != "POST" &&
req.method != "TRACE" &&
req.method != "OPTIONS" &&
req.method != "PATCH" &&
req.method != "DELETE") {
/* Non-RFC2616 or CONNECT which is weird. */
/*Why send the packet upstream, while the visitor is using a non-valid HTTP method? */
return(synth(404, "Non-valid HTTP method!"));
}
# Implementing websocket support (https://www.varnish-cache.org/docs/4.0/users-guide/vcl-example-websockets.html)
if (req.http.Upgrade ~ "(?i)websocket") {
return (pipe);
}
# Only cache GET or HEAD requests. This makes sure the POST requests are always passed.
if (req.method != "GET" && req.method != "HEAD") {
return (pass);
}
# Some generic URL manipulation, useful for all templates that follow
# First remove the Google Analytics added parameters, useless for our backend
if (req.url ~ "(\?|&)(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=") {
set req.url = regsuball(req.url, "&(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=([A-z0-9_\-\.%25]+)", "");
set req.url = regsuball(req.url, "\?(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=([A-z0-9_\-\.%25]+)", "?");
set req.url = regsub(req.url, "\?&", "?");
set req.url = regsub(req.url, "\?$", "");
}
# Strip hash, server doesn't need it.
if (req.url ~ "\#") {
set req.url = regsub(req.url, "\#.*$", "");
}
# Strip a trailing ? if it exists
if (req.url ~ "\?$") {
set req.url = regsub(req.url, "\?$", "");
}
# Some generic cookie manipulation, useful for all templates that follow
# 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.=[^;]+(; )?", "");
set req.http.Cookie = regsuball(req.http.Cookie, "_ga=[^;]+(; )?", "");
set req.http.Cookie = regsuball(req.http.Cookie, "_gat=[^;]+(; )?", "");
set req.http.Cookie = regsuball(req.http.Cookie, "utmctr=[^;]+(; )?", "");
set req.http.Cookie = regsuball(req.http.Cookie, "utmcmd.=[^;]+(; )?", "");
set req.http.Cookie = regsuball(req.http.Cookie, "utmccn.=[^;]+(; )?", "");
# Remove DoubleClick offensive cookies
set req.http.Cookie = regsuball(req.http.Cookie, "__gads=[^;]+(; )?", "");
# Remove the Quant Capital cookies (added by some plugin, all __qca)
set req.http.Cookie = regsuball(req.http.Cookie, "__qc.=[^;]+(; )?", "");
# Remove the AddThis cookies
set req.http.Cookie = regsuball(req.http.Cookie, "__atuv.=[^;]+(; )?", "");
# Remove a ";" prefix in the cookie if present
set req.http.Cookie = regsuball(req.http.Cookie, "^;\s*", "");
# Are there cookies left with only spaces or that are empty?
if (req.http.cookie ~ "^\s*$") {
unset req.http.cookie;
}
if (req.http.Cache-Control ~ "(?i)no-cache") {
if (! (req.http.Via || req.http.User-Agent ~ "(?i)bot" || req.http.X-Purge)) {
#set req.hash_always_miss = true; # Doesn't seems to refresh the object in the cache
return(purge); # Couple this with restart in vcl_purge and X-Purge header to avoid loops
}
}
# Large static files are delivered directly to the end-user without
# waiting for Varnish to fully read the file first.
# Varnish 4 fully supports Streaming, so set do_stream in vcl_backend_response()
if (req.url ~ "^[^?]*\.(7z|avi|bz2|flac|flv|gz|mka|mkv|mov|mp3|mp4|mpeg|mpg|ogg|ogm|opus|rar|tar|tgz|tbz|txz|wav|webm|xz|zip)(\?.*)?$") {
unset req.http.Cookie;
return (hash);
}
# Remove all cookies for static files
# A valid discussion could be held on this line: do you really need to cache static files that don't cause load? Only if you have memory left.
# Sure, there's disk I/O, but chances are your OS will already have these files in their buffers (thus memory).
# Before you blindly enable this, have a read here: https://ma.ttias.be/stop-caching-static-files/
if (req.url ~ "^[^?]*\.(7z|avi|bmp|bz2|css|csv|doc|docx|eot|flac|flv|gif|gz|ico|jpeg|jpg|js|less|mka|mkv|mov|mp3|mp4|mpeg|mpg|odt|otf|ogg|ogm|opus|pdf|png|ppt|pptx|rar|rtf|svg|svgz|swf|tar|tbz|tgz|ttf|txt|txz|wav|webm|webp|woff|woff2|xls|xlsx|xml|xz|zip)(\?.*)?$") {
unset req.http.Cookie;
return (hash);
}
# Send Surrogate-Capability headers to announce ESI support to backend
set req.http.Surrogate-Capability = "key=ESI/1.0";
if (req.http.Authorization) {
# Not cacheable by default
return (pass);
}
return (hash);
}
sub vcl_pipe {
# Called upon entering pipe mode.
# In this mode, the request is passed on to the backend, and any further data from both the client
# and backend is passed on unaltered until either end closes the connection. Basically, Varnish will
# degrade into a simple TCP proxy, shuffling bytes back and forth. For a connection in pipe mode,
# no other VCL subroutine will ever get called after vcl_pipe.
# Note that only the first request to the backend will have
# X-Forwarded-For set. If you use X-Forwarded-For and want to
# have it set for all requests, make sure to have:
# set bereq.http.connection = "close";
# here. It is not set by default as it might break some broken web
# applications, like IIS with NTLM authentication.
# set bereq.http.Connection = "Close";
# Implementing websocket support (https://www.varnish-cache.org/docs/4.0/users-guide/vcl-example-websockets.html)
if (req.http.upgrade) {
set bereq.http.upgrade = req.http.upgrade;
}
return (pipe);
}
sub vcl_pass {
# Called upon entering pass mode. In this mode, the request is passed on to the backend, and the
# backend's response is passed on to the client, but is not entered into the cache. Subsequent
# requests submitted over the same client connection are handled normally.
# return (pass);
}
# The data on which the hashing will take place
sub vcl_hash {
# Called after vcl_recv to create a hash value for the request. This is used as a key
# to look up the object in Varnish.
hash_data(req.url);
if (req.http.host) {
hash_data(req.http.host);
} else {
hash_data(server.ip);
}
# hash cookies for requests that have them
if (req.http.Cookie) {
hash_data(req.http.Cookie);
}
hash_data(req.http.PS-CapabilityList);
}
sub vcl_hit {
# 5% of the time ignore that we got a cache hit and send the request to the
# backend anyway for instrumentation.
if (std.random(0, 100) < 5) {
set req.http.PS-ShouldBeacon = "abe02e86-1f0d-420a-80f4-0c4d4add2d94";
return (pass);
}
# Called when a cache lookup is successful.
if (obj.ttl >= 0s) {
# A pure unadultered hit, deliver it
return (deliver);
}
# https://www.varnish-cache.org/docs/trunk/users-guide/vcl-grace.html
# When several clients are requesting the same page Varnish will send one request to the backend and place the others on hold while fetching one copy from the backend. In some products this is called request coalescing and Varnish does this automatically.
# If you are serving thousands of hits per second the queue of waiting requests can get huge. There are two potential problems - one is a thundering herd problem - suddenly releasing a thousand threads to serve content might send the load sky high. Secondly - nobody likes to wait. To deal with this we can instruct Varnish to keep the objects in cache beyond their TTL and to serve the waiting requests somewhat stale content.
# if (!std.healthy(req.backend_hint) && (obj.ttl + obj.grace > 0s)) {
# return (deliver);
# } else {
# return (miss);
# }
# We have no fresh fish. Lets look at the stale ones.
if (std.healthy(req.backend_hint)) {
# Backend is healthy. Limit age to 10s.
if (obj.ttl + 10s > 0s) {
#set req.http.grace = "normal(limited)";
return (deliver);
} else {
# No candidate for grace. Fetch a fresh object.
return(miss);
}
} else {
# backend is sick - use full grace
if (obj.ttl + obj.grace > 0s) {
#set req.http.grace = "full";
return (deliver);
} else {
# no graced object.
return (miss);
}
}
# fetch & deliver once we get the result
return (miss); # Dead code, keep as a safeguard
}
sub vcl_miss {
# Called after a cache lookup if the requested document was not found in the cache. Its purpose
# is to decide whether or not to attempt to retrieve the document from the backend, and which
# backend to use.
# Instrument 25% of cache misses.
if (std.random(0, 100) < 25) {
set req.http.PS-ShouldBeacon = "abe02e86-1f0d-420a-80f4-0c4d4add2d94";
return (pass);
}
return (fetch);
}
# Handle the HTTP request coming from our backend
sub vcl_backend_response {
# Called after the response headers has been successfully retrieved from the backend.
# Pause ESI request and remove Surrogate-Control header
if (beresp.http.Surrogate-Control ~ "ESI/1.0") {
unset beresp.http.Surrogate-Control;
set beresp.do_esi = true;
}
# Enable cache for all static files
# The same argument as the static caches from above: monitor your cache size, if you get data nuked out of it, consider giving up the static file cache.
# Before you blindly enable this, have a read here: https://ma.ttias.be/stop-caching-static-files/
if (bereq.url ~ "^[^?]*\.(7z|avi|bmp|bz2|css|csv|doc|docx|eot|flac|flv|gif|gz|ico|jpeg|jpg|js|less|mka|mkv|mov|mp3|mp4|mpeg|mpg|odt|otf|ogg|ogm|opus|pdf|png|ppt|pptx|rar|rtf|svg|svgz|swf|tar|tbz|tgz|ttf|txt|txz|wav|webm|webp|woff|woff2|xls|xlsx|xml|xz|zip)(\?.*)?$") {
unset beresp.http.set-cookie;
}
# Large static files are delivered directly to the end-user without
# waiting for Varnish to fully read the file first.
# Varnish 4 fully supports Streaming, so use streaming here to avoid locking.
if (bereq.url ~ "^[^?]*\.(7z|avi|bz2|flac|flv|gz|mka|mkv|mov|mp3|mp4|mpeg|mpg|ogg|ogm|opus|rar|tar|tgz|tbz|txz|wav|webm|xz|zip)(\?.*)?$") {
unset beresp.http.set-cookie;
set beresp.do_stream = true; # Check memory usage it'll grow in fetch_chunksize blocks (128k by default) if the backend doesn't send a Content-Length header, so only enable it for big objects
}
# Sometimes, a 301 or 302 redirect formed via Apache's mod_rewrite can mess with the HTTP port that is being passed along.
# This often happens with simple rewrite rules in a scenario where Varnish runs on :80 and Apache on :8080 on the same box.
# A redirect can then often redirect the end-user to a URL on :8080, where it should be :80.
# This may need finetuning on your setup.
#
# To prevent accidental replace, we only filter the 301/302 redirects for now.
if (beresp.status == 301 || beresp.status == 302) {
set beresp.http.Location = regsub(beresp.http.Location, ":[0-9]+", "");
}
# Set 2min cache if unset for static files
if (beresp.ttl <= 0s || beresp.http.Set-Cookie || beresp.http.Vary == "*") {
set beresp.ttl = 120s; # Important, you shouldn't rely on this, SET YOUR HEADERS in the backend
set beresp.uncacheable = true;
return (deliver);
}
# Don't cache 50x responses
if (beresp.status == 500 || beresp.status == 502 || beresp.status == 503 || beresp.status == 504) {
return (abandon);
}
if (beresp.ttl > 0s) {
unset beresp.http.expires;
set beresp.http.Cache-Control = "max-age=900";
set beresp.ttl = 1d; # how long you cache objects
set beresp.http.magicmarker = "1";
}
if (beresp.ttl < 900s) {
set beresp.ttl = 900s;
unset beresp.http.Cache-Control;
set beresp.http.Cache-Control = "max-age=900";
}
# Allow stale content, in case the backend goes down.
# make Varnish keep all objects for 6 hours beyond their TTL
set beresp.grace = 12h;
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 {
# Called before a cached object is delivered to the client.
# Mark HTML as uncacheable for our responses.
if (resp.http.Content-Type ~ "text/html") {
unset resp.http.Cache-Control;
set resp.http.Cache-Control = "no-cache, max-age=0";
}
if (obj.hits > 0) { # Add debug header to see if it's a HIT/MISS and the number of hits, disable when not needed
set resp.http.X-Cache = "HIT";
} else {
set resp.http.X-Cache = "MISS";
}
# Please note that obj.hits behaviour changed in 4.0, now it counts per objecthead, not per object
# and obj.hits may not be reset in some cases where bans are in use. See bug 1492 for details.
# So take hits with a grain of salt
set resp.http.X-Cache-Hits = obj.hits;
# Remove some headers: PHP version
unset resp.http.X-Powered-By;
# Remove some headers: Apache version & OS
unset resp.http.Server;
unset resp.http.X-Drupal-Cache;
unset resp.http.X-Varnish;
unset resp.http.Via;
unset resp.http.Link;
unset resp.http.X-Generator;
return (deliver);
}
sub vcl_purge {
# Only handle actual PURGE HTTP methods, everything else is discarded
if (req.method != "PURGE") {
# restart request
set req.http.X-Purge = "Yes";
return(restart);
}
}
sub vcl_synth {
if (resp.status == 720) {
# We use this special error status 720 to force redirects with 301 (permanent) redirects
# To use this, call the following from anywhere in vcl_recv: return (synth(720, "http://host/new.html"));
set resp.http.Location = resp.reason;
set resp.status = 301;
return (deliver);
} elseif (resp.status == 721) {
# And we use error status 721 to force redirects with a 302 (temporary) redirect
# To use this, call the following from anywhere in vcl_recv: return (synth(720, "http://host/new.html"));
set resp.http.Location = resp.reason;
set resp.status = 302;
return (deliver);
}
return (deliver);
}
sub vcl_fini {
# Called when VCL is discarded only after all requests have exited the VCL.
# Typically used to clean up VMODs.
return (ok);
}
```
i check in https://developers.google.com/speed/pagespeed/insights/ Mobile is 65 and Destop is 65.
please help me?
