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SSL Certificate Checker

Verify SSL/TLS certificate validity, expiration, issuer, and protocol support. Quick HTTPS test plus links to deep SSL analysers.

Website URL or Domain

SSL Best Practices

  • Use HTTPS everywhere โ€” even non-sensitive pages benefit from SSL (SEO ranking factor)
  • HSTS โ€” Strict-Transport-Security header forces HTTPS
  • Modern TLS โ€” TLS 1.3 recommended, TLS 1.0/1.1 disabled
  • Auto-renewal โ€” Let's Encrypt expires every 90 days; automate renewal
  • Free SSL โ€” Let's Encrypt, Cloudflare provide free certificates

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