What this tool checks
- Content-Encoding header
- gzip or Brotli detection
Performance and Uptime Tools
HTTP Compression Checker
Check whether HTTP compression is enabled.
Run the check
Enter a public target. Checks are a point-in-time sample; private and internal addresses are blocked.
Why it matters
Compression reduces transfer size and improves load time.
Plain-English examples
- Check whether gzip or br is active
Recommended fixes
- Enable gzip or Brotli at hosting level
- Avoid compressing already-compressed assets unnecessarily
Understanding the result
Use findings as a starting point, confirm the intended configuration with your provider, and retest after a change. A successful check does not guarantee security, delivery, uptime or search rankings. Results depend on public DNS and what the server exposes at the time of the check.
Related tools
Run these checks next for a fuller picture.
Uptime Checker
Request a URL and report status, response time and redirect hops.
Run checkPage Size Checker
Measure fetched HTML size and flag unusually large pages.
Run check
Cache Headers Checker
Check browser cache headers and identify caching signals that affect repeat visits and speed.
Run checkNeed help fixing the result?
