Standard HSTS
maxAge = 31536000
Result: HSTS header generated.
HSTS Header Generator
Generate HSTS headers to force browsers to use HTTPS.
Privacy: this tool processes your data entirely in your browser. Nothing you paste or type is sent to the server.
Enter your values and press Calculate — the result appears here.
Worked examples
Frequently asked questions
What does HSTS do?
HSTS forces browsers to only use HTTPS for your site.
📚 Learn More
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