Live Website Diagnostics
HSTS Header Checker
Check for Strict-Transport-Security on a public HTTPS page.
Live public lookup
Quick answer
What does HSTS Header Checker do?
Check for Strict-Transport-Security on a public HTTPS page. It is designed for a direct input → result workflow with no account requirement. Live lookup tools contact the public Internet from MediaZuno to retrieve the requested DNS or HTTP information.
How to use HSTS Header Checker
- Enter, paste or choose the input requested by the tool.
- Adjust any options shown for your task.
- Run the tool, review the result and copy or download it when available.
For important financial, technical or publishing decisions, verify the result against the source system or rule that applies to your situation.
HSTS Header Checker FAQ
What does HSTS Header Checker do?
Check for Strict-Transport-Security on a public HTTPS page.
Is HSTS Header Checker free to use?
Yes. MediaZuno provides HSTS Header Checker free to use without requiring an account.
Does HSTS Header Checker upload my input?
This version runs in your browser. Your input is processed on your device rather than being uploaded to MediaZuno.