Free SSL Certificate Checker
Check any domain's SSL certificate - expiry date, issuer, and trust chain.
Try:
100
Domains free
< 2s
Avg. check
24/7
Monitoring
$0
Forever
Recently checked
Domains people checked on SSLRadar.
Everything you need to stay ahead of expiry
No more surprise outages from an expired certificate.
Expiry tracking
Know exactly when each certificate expires — down to the day.
Issuer & trust
See who issued the certificate and whether the chain is trusted.
Covered domains
Every domain (SAN) the certificate protects, at a glance.
Expiry alerts
Create a free account to get emailed before certificates lapse.
Start monitoring free
Up to 100 domains. Free forever.