Cacheability

Cacheability makes your WordPress site a better HTTP citizen, improving SEO and cache efficiency.

Free Features

Soft 404 Fix

WordPress returns HTTP 200 for empty search results, invalid tag pages, and empty category archives. Google marks these as “soft 404” errors in Search Console, hurting your SEO.

Cacheability fixes this by returning proper 404 status codes when:

• Search results are empty (/?s=nonexistent)
• Tag archives are empty (/tag/nonexistent/)
• Category archives are empty
• Author archives are empty

Smart Cache-Control Headers

Automatically adds s-maxage headers so Varnish, NGINX, and CDNs can cache your pages efficiently without affecting browser caching behavior.

• Search/404 pages: 1 hour cache
• All other pages: 1 year cache (your purge plugin handles invalidation)

Cacheability Pro

Upgrade to Cacheability Pro for advanced features:

• Cache Warming — Automatically warm pages after purging so visitors never hit cold cache
• Conditional GET (304) — Return 304 Not Modified for unchanged content, saving bandwidth
• ESI Support — Cache pages with dynamic nonces (comments, login forms)
• Rate-Limit Safe — Smart request queuing to avoid 429 errors
• Sitemap Warming — Warm all pages from sitemap after full purge
• WP-CLI Commands — wp cacheability warm and more
• Priority Support — Get help when you need it

Get Cacheability Pro →