discussion Guide Apache & Nginx GZIP + Cache Optimization Guide

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🚀 Apache & Nginx GZIP + Cache Optimization Guide
Improve your server performance, boost page loading speed, and achieve higher Google PageSpeed scores with proper GZIP compression and browser caching setup.​

1️⃣ GZIP (Compression)
GZIP reduces the size of files sent from your server to the visitor’s browser. This speeds up page load time and saves bandwidth.

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📁 Apache – /etc/httpd/conf.d/deflate.conf

<IfModule mod_deflate.c>

    # Compress HTML, CSS, JS, XML, and fonts
    AddOutputFilterByType DEFLATE application/javascript
    AddOutputFilterByType DEFLATE application/rss+xml
    AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
    AddOutputFilterByType DEFLATE application/x-font
    AddOutputFilterByType DEFLATE application/x-font-opentype
    AddOutputFilterByType DEFLATE application/x-font-otf
    AddOutputFilterByType DEFLATE application/x-font-truetype
    AddOutputFilterByType DEFLATE application/x-font-ttf
    AddOutputFilterByType DEFLATE application/x-javascript
    AddOutputFilterByType DEFLATE application/xhtml+xml
    AddOutputFilterByType DEFLATE application/xml
    AddOutputFilterByType DEFLATE font/opentype
    AddOutputFilterByType DEFLATE font/otf
    AddOutputFilterByType DEFLATE font/ttf
    AddOutputFilterByType DEFLATE image/svg+xml
    AddOutputFilterByType DEFLATE image/x-icon
    AddOutputFilterByType DEFLATE text/css
    AddOutputFilterByType DEFLATE text/html
    AddOutputFilterByType DEFLATE text/javascript
    AddOutputFilterByType DEFLATE text/plain
    AddOutputFilterByType DEFLATE text/xml

    # Fix for older browsers
    BrowserMatch ^Mozilla/4 gzip-only-text/html
    BrowserMatch ^Mozilla/4\.0[678] no-gzip
    BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

    Header append Vary User-Agent

</IfModule>

📁 Nginx – /etc/nginx/conf.d/gzip.conf

gzip on;
gzip_disable "MSIE [1-6]\\.(?!.*SV1)";
gzip_proxied any;
gzip_comp_level 5;
gzip_types
    text/plain
    text/css
    application/javascript
    application/x-javascript
    text/xml
    application/xml
    application/rss+xml
    text/javascript
    image/x-icon
    image/bmp
    image/svg+xml;
gzip_vary on;

2️⃣ Cache (Browser Caching)
Browser caching stores static files (like images, CSS, and JS) on the user's device for a certain period. This makes pages load much faster on repeat visits.

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📁 Apache – /etc/httpd/conf.d/expires.conf

LoadModule expires_module modules/mod_expires.so

ExpiresActive On
ExpiresDefault "access plus 14 days"

ExpiresByType image/jpg "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType text/css "access plus 1 month"
ExpiresByType text/javascript "access plus 1 month"
ExpiresByType application/javascript "access plus 1 month"
ExpiresByType application/pdf "access plus 1 month"
ExpiresByType application/x-shockwave-flash "access plus 1 month"
ExpiresByType image/x-icon "access plus 1 month"
ExpiresByType text/html "access plus 1 day"

📁 Nginx (inside your server block)

location ~* \.(jpg|jpeg|gif|png|svg|ico|css|js|pdf|woff|woff2)$ {
    expires 30d;
    add_header Cache-Control "public, no-transform";
}

3️⃣ Restart Services
After saving all configuration files, restart Apache or Nginx to apply changes.

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# Restart Apache
systemctl restart httpd

# Restart Nginx
systemctl restart nginx

✅ GZIP compression and caching are now active on your server!
You can verify with these tools:
GZIP Test • Cache Test

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