Resource Age Checker

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Test Summary

URL
Requests Analyzed
Stale Responses
Stale Bytes

Hosts Serving Stale Responses

A response is listed when its Age header is greater than the max-age in its Cache-Control header — meaning the response spent longer in an upstream cache than it was allowed to be reused for.
Effective Cache TTL is max-age − Age, the time a browser may still reuse the response. A negative value means it arrived already expired and the browser must revalidate on the very next use.
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Hostname CDN Type Cache-Control Age Effective Cache TTL Requests

Resources on

URL Type CDN Cache-Control Age Effective Cache TTL Size