
Varnish sits in front of the web or application server and caches its output. This means that the logs of the web server no longer paint a complete picture of your site’s traffic. To get a complete view, logging on the edge is needed.
This is why we developed Varnishlog, a powertool to perform in-depth analysis of your requests, responses, backend fetches, backend health and caching behavior–so that you can generate actionable insights to improve performance, reliability, functionality and security.
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