Is Varnish Working?

Check HTML headers for X-Varnish and X-Cache

Please enter a valid URL above to use this tool

How Varnish Cache Checking Works

Varnish adds the following header to HTTP responses that it handles:

X-Varnish

You should be able to see that Varnish is working on your site by inspecting the response headers and looking for that header. Or, enter your URL above and my tool will find it for you

Sample way to find headers:

curl -IL https://example.com

Sometimes, Varnish is up and running but not working properly. This tool also checks the

X-Cache
header to ensure that the content being served is cached - indicated by a HIT value.

Here is a link to the Varnish Cache website to lookup more information on how Varnish works - varnish-cache.org

Here's the official guide for installation of Varnish Cache - Varnish Installation