HTTPS Checker
Check pasted URL text and headers for secure-scheme and HSTS signs.
Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.
HTTPS Checker
How to use this tool
- Enter your values in the fields above.
- Press Generate to see the result.
- Use Load sample to try the worked example, Copy result to copy it, or Clear to start again.
Worked example
A secure-scheme URL with an HSTS header in the pasted text is reported as showing secure signs.
What this tool does not do / Limits
This only reads text you paste. It does not fetch, verify or validate any live site or certificate.
Frequently asked questions
Does it verify my certificate?
No. It only reads the URL text and headers you paste.
Does it test my live site?
No. No live connection is made.
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