SSL Labs Alternative
SSL Labs is thorough but slow — a single scan often takes one to two minutes and covers only the TLS layer. HTTPS Checker is a free SSL Labs alternative that returns a complete HTTPS health report in seconds: SSL grade, certificate and expiry, redirect chain, security headers, HTTP/2 and HTTP/3, mixed content, CAA and DNSSEC. No signup, no queue.
Try it below, or read the detailed HTTPS Checker vs SSL Labs comparison to see when the original is still the better pick.
Enter any domain — no signup, results in seconds.
What you get compared to SSL Labs
| Feature | HTTPS Checker | SSL Labs |
|---|---|---|
| Results in seconds | Yes | No |
| SSL/TLS grade (A+ to F) | Yes | Yes |
| What to fix for the next grade | Yes | No |
| Redirect chain & 301/302 status codes | Yes | No |
| Security headers (HSTS, CSP, X-Frame-Options, …) | Yes | No |
| Mixed content detection | Yes | No |
| HTTP/2 & HTTP/3 (QUIC) | Yes | HTTP/2 only |
| Bulk check | Up to 10 domains | No |
| SSL expiry email reminders | Yes | No |
| PDF / JSON export | Yes | No |
| Free public API | Yes | Rate-limited |
To be fair: SSL Labs remains unmatched for deep cipher-suite audits and TLS vulnerability testing. For everything else, you'll be done before its scan finishes.
Bulk checks
Check up to 10 domains in one run — ideal for agencies and portfolios. Export everything as PDF or JSON.
Expiry reminders
Free email reminder before your certificate expires, plus monitoring for configuration regressions.
Free API
Full report as JSON via a free public API — plug HTTPS checks into CI pipelines and dashboards.
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