Fast TLS check
Free SSL Certificate Check
Enter an HTTPS address and see whether the certificate is valid, who issued it, and how many days are left before it expires.
Result in seconds · Full certificate data · No sign-up
Certificate probe
handshake, issuer, expiry, reputation
SSL hygiene
What breaks when a certificate expires
Let's Encrypt certificates last 90 days, commercial ones usually a year. A missed renewal takes a site down as effectively as a server failure.
- Browsers block the page
- On an expired or invalid certificate, visitors get a full-page warning and most of them turn back.
- Integrations stop working
- Payments, APIs and webhooks refuse connections over an invalid certificate, often without a readable error.
- Traffic loses its proof of identity
- Without a valid certificate there is no way to confirm who the browser is actually talking to, which opens the door to interception.
- GDPR and PCI DSS requirements
- Encrypting personal data and payment traffic is mandatory, not optional.
Monitor certificates automatically
PingView checks certificates daily and warns you well before they expire, across every domain you run.