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DNS, TLS & HTTP diagnostics

Inspect a domain and web page in one request

Inspect DNS, HTTP, TLS, security headers and page metadata.

How to use / Notes

How to use

  1. Enter the domain or URL to diagnose.
  2. Run it to see DNS, TLS, HTTP and OGP results together.
  3. Drill into the details of each section.

Notes

  • Diagnostics reach the target site via a server—do not probe third-party sites aggressively without permission.
  • Results may be unavailable if the target is down or blocks access.