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Inspect certificates, intermediate CAs, expiry and TLS security.
This checker uses external online services. Review the limitations and privacy notice before running it.
Pick a category or find the right calculator.
Check your public IP address and the SSL/TLS certificate chain of a website. No account needed.
Show your public IPv4 and IPv6 addresses. These are not your local Wi-Fi addresses.
Checks run on our own VPS. IP country comes from a local database. ASN, ISP, precise location and VPN/Tor status are not determined.
Checks run on our own VPS. IP country comes from a local database. ASN, ISP, precise location and VPN/Tor status are not determined.
Enter a public domain to inspect certificates, issuers, validity and chain problems.
Alternative: detailed SSL Labs test
Our server connects directly to the public TLS service on port 443. No third-party scanning API. Revocation, HSTS, all ciphers and security grading are not tested.
Our server connects directly to the public TLS service on port 443. No third-party scanning API. Revocation, HSTS, all ciphers and security grading are not tested.
A site commonly has a leaf certificate, intermediate certificates and a trusted root CA. Browsers may judge trust differently from the scanner.
Made to give you clarity with no accounts or complicated forms.
Results update as soon as you change a value.
Numbers you enter stay in your browser and are not sent anywhere.
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