← All website monitoring tools
SSL Labs
Free SSL/TLS configuration test by Qualys — industry standard for grading HTTPS setup.
What it does well
- Provides an industry-standard A+ to F grade for quick, clear security posture assessment.
- Offers detailed reports on protocol support, cipher suites, and known vulnerabilities.
- Completely free to use for any public-facing domain without registration or limits.
Where it falls short
- Cannot test internal servers or services that are not accessible from the public internet.
- Scans can be slow, sometimes taking several minutes to complete for a single host.
- No official API or automation for continuous monitoring; scans must be initiated manually.
Alternatives to SSL Labs
UptimeRobot
freemiumMost popular free uptime monitor — 50 free monitors at 5-min intervals.
StatusCake
freemiumLong-running freemium uptime tool — uptime + SSL + domain expiry in one dashboard.
Uptime Kuma
freeSelf-hosted open-source uptime monitor with status pages — Docker one-liner deploy.
Sucuri
paidWebsite security platform — malware scan, WAF, hack cleanup. Free scanner, paid protection.