Is It Cached?

Is It Cached?

Is It Cached? gives you an overview about the browser cache, all cache-relevant response headers and also detects multiple CDNs.

What is Is It Cached??
Is It Cached? is a Chrome extension that provides an overview of cache-relevant response headers, detects multiple CDNs, and gives insights into browser cache. It helps developers optimize their infrastructure and determine if CDNs are working effectively.
This extension was removed from Chrome Web Store on 2022-06-19
Users: 1,000+
Rating: 3.56 (18)
Version: 0.9.0 (Last updated: 2015-06-04)
Creation date: 2015-06-04
Risk impact: Moderate risk impact
Risk likelihood: High risk likelihood
Manifest version: 2
  • tabs
Size: 427.01K
URLs: Website
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
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You spend lots of time to optimize your infrastructure to make sure you servers respond with correct cache headers?

You use a CDN to speed-up your content delivery but you don't know if it is really working?

This extension for the developer tools gives you an overview about all relevant request headers (method, if-modified-since, if-none-match) and response headers (cache-control, pragma, last-modified, etag) in one single table.

It also detects if elements are fetched through a CDN and shows you the cache status of the CDN (currently only Cloudflare is supported).

You find more information, explanation about the used colors and a changelog here:

new in version 0.8.1:

new in version 0.8:

  • Switched to jQuery for better table customization.
See more
User reviews
No longer works or is supported.
by Chase Deloitte Chase Deloitte, 2022-05-03

Would it hurt to write documentation on how to use? Clicking the icon just gives a dropdown and clicking "is it cached" just loads the store page...
by Jordan Kolbaba Jordan Kolbaba, 2019-10-01

Was great at one point now its EOL unless the dev updates it.
by Michael Walker Michael Walker, 2018-02-02
View all user reviews
Risk impact

Is It Cached? may not be safe to use and it requires some risky permissions. Exercise caution when installing this extension. Review carefully before installing.

Risk likelihood

Is It Cached? may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

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