Uptime Checker
Request a URL and report status, response time and redirect hops.
- Final URL
- HTTP status
- Response time
Free diagnostic tools
Performance and Uptime Tools
Measure basic availability and performance signals that can affect visitors, search visibility and conversion rates.
Performance and Uptime Tools
Select a tool and run a live check with clear findings, recommendations and technical details.
Page Size Checker
Measure fetched HTML size and flag unusually large pages.
- HTML transfer size
- HTTP status
- Large page warning
HTTP Compression Checker
Check whether HTTP compression is enabled.
- Content-Encoding header
- gzip or Brotli detection
Cache Headers Checker
Check browser cache headers and identify caching signals that affect repeat visits and speed.
- Cache-Control header
- Expires header
- Caching guidance
