Is your endpoint actually reachable, secure, and fast?

Paste a URL or hostname and get a graded report on DNS, TCP, TLS, redirects, latency, and security headers — with prioritized fixes you can paste into a PR. Checks run server-side; no data stored by default.

• ✓DNS resolution & TCP reachability
• ✓TLS handshake, protocol version & hostname match
• ✓Certificate expiry window
• ✓HTTP status & redirect-chain resolution (SSRF-guarded)
• ✓Connect latency & time-to-first-byte
• ✓HSTS / CSP / nosniff / frame / referrer / Permissions-Policy
• ✓HTTP → HTTPS upgrade
• ✓Server version-banner leakage
• ✓Unsafe wildcard CORS detection
• ✓Prioritized, copy-pasteable fixes + CLI / GitHub Action