Free SSL Certificate & Expiry Checker
Inspect SSL/TLS certificate validity, certificate authority (Let's Encrypt, DigiCert, Cloudflare, Sectigo), expiration date countdown, and encryption algorithms.
Why SSL / TLS Certificate Validation is Vital for SEO
Since Google's HTTPS ranking factor update, an active SSL/TLS certificate is mandatory for every web property. Browsers like Google Chrome and Safari immediately display a severe "Your connection is not private" warning when a certificate lapses, causing instant traffic loss.
- Prevent Accidental Site Downtime: Modern automated certificates from Let's Encrypt renew every 90 days. Verifying remaining days helps avoid expired cert blackouts.
- Protect User Credentials: SSL establishes SHA-256 encrypted tunnels, ensuring passwords and credit card forms cannot be intercepted.
- Google Ranking Signal: HTTPS websites receive priority indexing and ranking trust in Google Search SERPs.
- Ad Network Compliance: Google AdSense, Mediavine, and Ezoic require 100% secure HTTPS delivery for premium ad tag auctions.
Frequently Asked Questions (FAQ)
It is best practice to renew within 14 to 30 days of expiration to prevent accidental gaps in coverage.
TLS (Transport Layer Security) is the modern, secure successor to legacy SSL (Secure Sockets Layer). Today's web uses TLS 1.2 and TLS 1.3 encryption.