gzip Compression Checker

Check whether gzip compression is enabled

Enter a URL to check the gzip compression status

Just enter a URL to instantly check the compression state when served

Measure the byte count after compression and after decompression to visualize transfer volume

Show the amount of data reduced from the difference before and after compression as a percentage

Also detects deflate and Brotli compression and shows the method name

Enter the URL of the page whose compression state you want to check in the input field

Press the check button and the server fetches the page to determine the result

Check the enabled/disabled result along with header information such as size and compression ratio

Inspect whether compression is applied to understand the room for faster loading through reduced transfer volume

Check whether settings are correctly applied after enabling compression

Compare other sites' compression settings and ratios as a reference for improvement

Understand the compression state that affects page speed before taking measures

Processed temporarily on the server and discarded after the result is returned. Only the information needed for the lookup is sent.

For fetching and analyzing the page, temporary processing occurs on the server, then data is discarded after results are returned.

All sent and received data is encrypted by TLS and cannot be read by third parties.

Input content is not sent to external services such as ad networks or trackers.

Accesses only the entered URL from our service's server to check the compression state