Brotli Checker
Brotli Checker checks the response to a web request for Brotli content encoding. See how to enter your data, read the result, and avoid common mistakes.
Brotli Checker checks the response to a web request for Brotli content encoding. Use it to investigate compression on a specific URL rather than assuming that one compression setting covers every response served by a website.
How to use Brotli Checker
- Enter the complete URL of the page or resource.
- Submit the form and inspect the Brotli result.
- Compare the returned headers when you need more context about encoding.
Example and interpretation
A text resource may return Content-Encoding: br when Brotli is used. An image response can behave differently, so compare like-for-like resources when investigating a configuration change.
Treat the displayed result as evidence about the submitted target and the particular check performed. Compare the exact hostname, protocol, and input with your original question before changing a configuration. A failed request and a negative finding are different outcomes.
Limits to consider
This check looks for br in the returned Content-Encoding header. Caches, request negotiation, content type, and intermediary behavior can change the result. Detection alone does not quantify size savings or establish the loading time of a complete page.
Questions about Brotli Checker
Does a negative result mean all compression is off?
No. The response may use another encoding or be served without compression for that resource.
Is Brotli the same thing as HTTP/2?
No. Compression and the HTTP protocol version are separate properties of a response.
Related tools
HTTP headers lookup shows the surrounding response headers. HTTP/2 Checker investigates protocol negotiation. URL redirect checker helps identify a changed destination.
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