Varnish Software Blog

caching for web performance object storage s3 reduce egress fees

The Secret to Reducing Cloud Storage Fees While Improving Performance

Amazon S3 was one of the original web services. Launched in 2006, the service delivered on its promise of being a...

PROXY X-forwarded-For HTTP Header

When you send an HTTP request to a server, it’s unlikely that you are talking to it directly. Rather, you are sending...

varnishstat varnishlog observability

Hello there! This article is the third part of a series, you may want to start at the beginning (The Basics), or at...

varnishstat varnishlog varnishncsa observability grafana

In our previous post, Varnish and Observability (Part 1: The Basics), we explored the Varnish ecosystem of core tools...

video delivery prefetch prefetching content

Speed is one of the most crucial aspects of any online experience. And today, speed isn’t just a nice-to-have—it’s a...

device detection deviceatlas

Do you wish you knew what device or browser your clients are using? Do you need to take on-the-fly decisions based on...

Varnish Cache Open Source backend health

Life as a reverse-proxy can be tough, you know? On one side, you have users in a hurry coming to you to get their...