Tell researchers where to report
A security.txt Contact field gives good-faith vulnerability reporters a standardized route instead of making them guess.
Website security
Check the standard vulnerability-reporting contact file.
Look for /.well-known/security.txt, published Contact fields and expiry metadata over HTTPS.
Result
Website security observations
What to review
Read the finding in context.
Keep the file current
An Expires field helps distinguish maintained security contact information from abandoned metadata.
Use the well-known HTTPS location
The checker looks at the HTTPS /.well-known/security.txt location rather than trusting arbitrary copies elsewhere.
Optional supporting fields
Canonical, Policy, Encryption, Acknowledgments and language information can provide useful reporting context when appropriate.