Brotli and GZip are two of the most popular compression algorithms for the web, and their browser support is exceptionally good. But we have a new player in town: ZSTD or Zstandard, which is developed by Facebook. Compression is only one part of optimization, so also watch out for broader web performance mistakes.

ZStandard adoption has increased significantly since 2024 when Cloudflare added support for the same. Now it is also available on Cloudflare's free plan and can be enabled using this compression rule. But is Zstandard worth using over Brotli and GZip? Let us find it out today!

The SpeedVitals Team has an exciting update to share with you all. We just started beta testing of our Real-User Monitoring (RUM).

The SpeedVitals Team has an exciting update to share with you. We just launched the alpha version of our Real-User Monitoring (RUM). This was followed by the RUM beta and later the RUM public beta.

Happy New Year to SpeedVitals users! 🎉

We have two new updates to share with you. We have updated Lighthouse version to 12.3.0 and adjusted the CPU Throttling on Mobile devices. The Network Throttling remains the same as before.

The reduced throttling across all our mobile devices will result in better performance scores. Some websites can expect a big improvement to the TBT (Total Blocking Time) metric. Most of the other metric will not have a significant improvement.

If you are comparing reports before and after this change, make sure you separate lab scores from real-world field data. This is especially important when you are checking Core Web Vitals trends with the SpeedVitals Core Web Vitals Checker or comparing your site with broader web performance benchmarks.

Cloudflare introduced Argo in 2017 as an add-on premium service for Cloudflare users. Argo uses smart routing in real time to avoid network congestion. It dynamically finds the most optimal routes through the Cloudflare network and reduces the response times of your website. If you are still comparing CDN options, start with our best CDN provider benchmarks.