Security.txt builder
Create a security.txt contact file with an email address and expiry date for vulnerability reports.
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Security.txt builder — workspace
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How to use: Security.txt builder
Start with the example, or replace it with your own values.
Review Contact email, Expiry date, then select “Get result”.
Read the result, then copy or download it. Edit any input to try again.
What you can do
- Create a security.txt contact file with an email address and expiry date for vulnerability reports.
What you get
- A result you can review, copy or download. Numeric tools show labeled calculations; text tools show the transformed output.
What you need
- Contact email
- Enter or paste your value, or start with the example.
- Expiry date
- Choose a valid calendar date.
Try an example
- Contact email
[email protected]
- Expiry date
2027-03-28
Good to know
- Choose an expiry date less than a year ahead. Review the file before publishing at /.well-known/security.txt.
Your work stays on your device
Your files and entered values are processed in your browser and are not uploaded for processing. The website and any required processing engines still download from the site.
Questions & answers
Is Security.txt builder free?
Yes. Security.txt builder is free to use and does not require an account.
Are my files or entered values uploaded?
Your files and entered values are processed in your browser and are not uploaded for processing. The website and any required processing engines still download from the site.
What result can I save?
A result you can review, copy or download. Numeric tools show labeled calculations; text tools show the transformed output.
What should I check before using the result?
Choose an expiry date less than a year ahead. Review the file before publishing at /.well-known/security.txt.