security.txt Generator
Builds a security.txt file per RFC 9116 — the standardised way to tell security researchers how to actually report a vulnerability to you, instead of them having to guess an email address or give up and post it publicly.
The problem this standard actually solves
A researcher who finds a real vulnerability in your site has no reliable way to know who to tell. Guessing security@ works sometimes. Digging through a contact page for something vaguely relevant works sometimes. Neither is reliable, and the failure mode is bad: a researcher who can't find a disclosure channel either gives up, or — worse for you — posts the vulnerability publicly because that's the only way to guarantee someone from your organisation actually sees it. security.txt exists specifically to remove that guesswork: one standard, predictable location, one standard format, checked automatically by an increasing number of security tools and researchers as a first step.
The two fields that are actually required
Contact — at least one, and it can repeat: an email (as a mailto: URI), a web form URL, even a phone number. Expires — every security.txt file has to state when it stops being considered valid, specifically so a stale, forgotten file with a dead contact address doesn't quietly mislead researchers for years. A one-year expiry is a reasonable default; renew it before it lapses.
Where it actually goes, and why the path is non-negotiable
RFC 9116 specifies the file lives at /.well-known/security.txt — not the site root, not anywhere else. Automated scanners and researcher tooling check that exact path first, and some check only that path, so a file placed anywhere else may as well not exist for anyone relying on tooling rather than manually browsing your site. A copy at the plain root (/security.txt) is optional and permitted as a fallback under the RFC, but the well-known path is the one to actually get right.
Optional fields worth including anyway
Encryption points to a PGP key for reporters who want to send something sensitive without it sitting in a plaintext inbox — genuinely valuable for a real vulnerability report. Policy links your actual disclosure policy — scope, safe harbor terms, what's in and out of bounds — which answers the questions a serious researcher will have before they even start looking. Acknowledgments is a public thank-you page, which costs nothing and is a real incentive for researchers who report responsibly instead of going public first.