Brotli Test Check Brotli Compression

Online Brotli test - Verify if your server or CDN supports Google's Brotli compression algorithm.

Brotli Test History

URL Brotli Compression
https://uboard.runot supported
https://www.mmogah.comsupported supported supported
https://feedingglutenfree.comnot supported
https://www.mozzila.orgnot supported
https://www.chevrolethatyai.comnot supported
https://www.makerzoo.conot supported
https://www.klangsisaket.comnot supported supported

Brotli Test FAQs

What is Brotli compression?

Brotli is a new open source compression algorithim developed by Google as an alternative to Gzip, Zopfli, and Deflate. Google's case study on Brotli has shown compression ratios of up to 26% smaller than current methods, with less CPU usage.

Brotli Test Tool

With our tool you can quickly check if your web server is sending the Brotli compressed payload to your clients. Negotiation is done via the Accept-Encoding: br request header. Servers can add "br" to Content-Encoding: br to encode a response with Brotli.

Brotli Support

Both the server and the client (browser) must be Brotli compatible to take advantage of smaller file sizes and be running over an HTTPS connection. Brotli compression is currently supported by the following browsers:

  • Google Chrome: Chrome 49+
  • Mozilla Firefox: Firefox 44+ (released January 26, 2016)
  • Opera: Opera 36+