- Content-Encoding
- Brotli/gzip/zstd
- Unexpected uncompressed HTML
- Proxy behavior
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40 toolsCompression Checker
Detect Brotli/gzip/zstd transfer compression.
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ABOUT THIS CHECK
Compression Checker
Detects transfer compression on the returned HTML response.
WHY IT MATTERS
Compression reduces transferred bytes and can improve load time, especially on slower networks.
Compressible text responses are served using modern transfer compression.