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SEO Audit Checker

HTML not compressed

High priorityPerformance

The page is sent without gzip, Brotli or zstd compression, making it several times larger than necessary.

What triggers this issue

  • No Content-Encoding on the HTML response.

Why it matters

Compression typically shrinks HTML, CSS and JavaScript by 70–80%. Without it, every visitor downloads far more data, which is slow on mobile connections.

How to fix it

  1. Enable Brotli or gzip on your server or CDN; it’s usually a single setting.
  2. Make sure CSS, JavaScript, SVG and JSON are compressed too.
Nginx
gzip on;
gzip_types text/html text/css application/javascript application/json image/svg+xml;
In-depth guideHow to reduce server response time (TTFB) and page weight

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