Gzip／Brotli圧縮テスト

このツールの使い方

1. 1

   Paste the full URL you want to check, including the https:// scheme.

2. 2

   Submit the form to have our server request that URL.

3. 3

   Read the result card: it shows the Content-Encoding value (such as gzip or br) and whether compression was detected.

4. 4

   Adjust your server configuration if the card reports no compression, then re-run the check.

Gzip／Brotli圧縮テストとは何ですか？

よくある活用例

• Confirm that a newly deployed Nginx or Apache config is actually emitting gzip or brotli on your homepage.

• Verify a CDN such as Cloudflare or Fastly is compressing HTML responses at the edge.

• Spot-check an API endpoint that returns large JSON to see whether it is being compressed in transit.

• Diagnose a slow page by ruling compression in or out before digging into other performance causes.

• Check whether a specific path (not just the root) is served compressed when rules differ per route.

• Demonstrate to a client or teammate, with a shareable result, that their pages are or are not compressed.

よくある質問