Security · Instant result
SSL / TLS Check
Verify the HTTPS certificate: expiry, issuer, and whether it matches your hostname.
What it’s for
Catch expired certificates, wrong hostnames, and upcoming renewals before browsers warn your visitors.
How it works
We open a TLS connection to the host (port 443 by default), read the presented certificate, and compare CN/SAN to the name you entered.
What you get
Days left until expiry, issuer, SANs, and a score with plain-language findings.
We look at
- Expiry
- Hostname / SAN match
- Issuer
How to use
- 1 Enter a domain or full https URL.
- 2 Check days remaining and hostname match.
- 3 Renew or fix the cert if anything is critical.