Technical SEO
Cache
A cache is a temporary storage layer — in browsers, servers, or CDNs — that stores copies of resources such as HTML pages, images, and scripts so they can be served faster on subsequent requests without re-fetching from the origin server. Google also maintains a cached version of indexed pages.
Browser caching is configured via HTTP Cache-Control headers and can be audited using Google PageSpeed Insights or Screaming Frog. Server-side and CDN caching strategies are monitored through server logs and performance dashboards such as Cloudflare Analytics or Fastly.
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Related Terms
Technical SEO
CDN (Content Delivery Network)
Refers to the network technology that enables data to be transmitted over servers in certain locations.
Technical SEO
Gzip Compression
Refers to the process of combining and compressing similar indexes, repeated texts, and spaces in a source file.
Technical SEO
Website Speed Optimization
Refers to practices to provide faster access to websites.
Technical SEO
Critical Rendering Path
Refers to a specific set of steps that must be completed before any page content can be shown to a visitor.