Caching & Compression in Apache
From the Apache cheat sheet · Modules & Performance · verified Jul 2026
Caching & Compression
Enable GZIP compression and browser caching for performance
apacheconf
# Enable compression (mod_deflate)
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/html text/css
AddOutputFilterByType DEFLATE application/javascript application/json
</IfModule>
# Browser caching (mod_expires)
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/jpeg "access plus 1 year"
ExpiresByType text/css "access plus 1 month"
</IfModule>💡 GZIP compression reduces text-based response sizes by 60-80% — enable it on every server
⚡ Set "access plus 1 year" for static assets with fingerprinted filenames (style.a1b2c3.css)
📌 HTML should have Cache-Control: no-cache so users always get the latest content
🟢 Use immutable with long max-age for hashed/fingerprinted assets — browsers skip revalidation
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