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security.txt Generator

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Generate an RFC 9116 compliant security.txt file with contact, expiry, encryption, policy and canonical fields, with validation warnings.

security.txt generatorrfc 9116vulnerability disclosure.well-known security.txt
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security.txt — serve at /.well-known/security.txt
    RFC 9116 requires at least one Contact and exactly one Expires field. Use https URLs, and renew the file before it expires (under a year is recommended). With Astro or Cloudflare Pages, put the file in public/.well-known/security.txt.
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    Frequently Asked Questions
    What is security.txt?
    A standard file at /.well-known/security.txt telling researchers how to report vulnerabilities, defined in RFC 9116.
    Which fields are mandatory?
    At least one Contact and exactly one Expires field.
    How often must I renew it?
    Before the Expires date; picking a date under a year ahead is recommended.
    Where do I host it?
    At https://yourdomain/.well-known/security.txt over HTTPS (a copy at /security.txt is also allowed).
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