security.txt Checker
Verify a site publishes a valid security.txt at /.well-known/security.txt and lists a working contact.
A valid security.txt tells researchers exactly where to send vulnerability reports before they end up on Twitter. It's a five-minute file that every bug-bounty program, pen-test firm and enterprise procurement team now looks for. This checker fetches yours, validates it against RFC 9116 and flags anything that would confuse a would-be reporter.
security.txt Checker evaluates the following signals from your target host:
Frequently asked questions
- Not legally, but it is standard practice (RFC 9116) and part of most bug-bounty program hygiene.
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