Infrastructure & Hosting · AuditJet Glossary

Edge Caching

Storing website content on CDN edge servers so users receive cached responses without hitting the origin server.

Edge caching dramatically reduces TTFB for cached pages by returning responses directly from CDN points of presence (PoPs) rather than routing requests to the origin server. Cache-Control headers determine what is cached, for how long, and under what conditions the cache is invalidated. Incorrect caching configuration can lead to stale content or cache bypass.

Related terms

CDN (Content Delivery Network)

A globally distributed network of servers that delivers web content from the node closest to the user to reduce latency.

TTFB (Time to First Byte)

The time from when a browser requests a page until the first byte of the server's response is received.

Frequently asked questions

What is Edge Caching?

Storing website content on CDN edge servers so users receive cached responses without hitting the origin server.

How does AuditJet measure Edge Caching?

AuditJet runs automated Google Lighthouse audits that surface Edge Caching scores alongside actionable fix guidance. You can track Edge Caching trends across all your pages and receive alerts when the metric regresses.

Monitor Edge continuously

AuditJet tracks Core Web Vitals on a schedule with revenue impact alerts — powered by Google Lighthouse and Google PageSpeed Insights.

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