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Last active March 14, 2023 10:33
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Nginx Wordpress caching
# The path to store the cache files, limit the folder to 100MB
fastcgi_cache_path /var/run/nginx-cache levels=1:2 keys_zone=WORDPRESS:100m;
# A unique request is defined by this cache key
fastcgi_cache_key "$scheme$request_method$host$request_uri";
# Show the cached version if upstream gives a timeout or a HTTP 500 error
fastcgi_cache_use_stale error timeout invalid_header http_500;
# Don't use the following headers to define the cache variables
fastcgi_ignore_headers Cache-Control Expires Set-Cookie;
upstream php {
server {
listen [::]:80;
listen 80;
root /var/www/;
index index.php;
# Keepalive for 70 seconds
keepalive_timeout 70;
# Increase proxy buffers for large requests
proxy_buffer_size 128k;
proxy_buffers 4 256k;
proxy_busy_buffers_size 256k;
# Upload limit
client_max_body_size 50m;
client_body_buffer_size 128k;
# Initialize the variable that specified to skip the cache
set $skip_cache 0;
# POST requests and url's with a query string should always skip cache
if ($request_method = POST) {
set $skip_cache 1;
if ($query_string != "") {
set $skip_cache 1;
# Don't cache url's containing the following segments
if ($request_uri ~* "/wp-admin/|/xmlrpc.php|wp-.*.php|/feed/|index.php|sitemap(_index)?.xml") {
set $skip_cache 1;
# Don't use the cache for logged in users or recent commenters
if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {
set $skip_cache 1;
location / {
try_files $uri $uri/ /index.php?$args;
# PHP files should go to PHP-FPM
location ~ \.php$ {
include fastcgi_params;
# Extra security measure, but only possible when PHP-FPM is on the same server as Nginx
try_files $uri =404;
# Fastcgi configuration
fastcgi_split_path_info ^(.+\.php)(/.*)$;
fastcgi_intercept_errors on;
fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 256k;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_index index.php;
# Don't cache when $skip_cache is true
fastcgi_cache_bypass $skip_cache;
fastcgi_no_cache $skip_cache;
# Use the WORDPRESS zone
fastcgi_cache WORDPRESS;
# Cache everything for 1 week
fastcgi_cache_valid 1w;
# Pass request to PHP-FPM
fastcgi_pass php;
# Don't write to accesslog for these files
location = /favicon.ico {
log_not_found off;
access_log off;
location = /robots.txt {
allow all;
log_not_found off;
access_log off;
# Media files with one of these extensions should be cached by the browser
location ~* \.(xml|ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|css|rss|atom|js|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ {
expires max;
log_not_found off;
# Deny access to .* files
location ~ /\. {
deny all;
access_log off;
log_not_found off;
# Add cache status header for easy debugging
add_header X-Cache $upstream_cache_status;
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