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Varnish Software Blog

Insights, updates, stories and more from Varnish Software

Switching behavior dynamically in Varnish

From time to time we see the need for Varnish to switch behavior based on an external event. Let's have a look at how...

Sub-second TTLs in Varnish Cache

Typically the backend instructs Varnish how long to cache content through the Cache-Control header. The resolution here...

VAC 2.0.3 with high performance cache invalidation API (aka the Super Fast Purger)

Whilst Varnish is the go-to product for high performance and high availability caching, we often overlook the...

Getting billing data from Varnish

You can now get data from Varnish in a format that you can use to bill traffic to your customers. In the (near) future...

Releasing Varnish Custom Statistics - Welcome to debugging heaven!

We are proud to be able to present to you our latest product, the Varnish Custom Statistics (VCS). VCS is a product...

The Varnishlog Query language

When providing support we often spend some time crafting varnishlog statements that will catch what we're looking for....