plugmyagent

SSL Labs Server Test API

Network & IP Intel Free key (no card)

GitHub stars1.8k
Forks248
LicenseApache-2.0
Last activityAug 5, 2024
Open issues294

Repository: ssllabs/ssllabs-scan ยท Data checked Oct 2026

About

Qualys SSL Labs runs the internet's best-known TLS/HTTPS checker, and its free API lets you programmatically test any public website's security configuration: certificate validity, supported protocols and ciphers, and known vulnerabilities. You kick off an assessment, poll until it finishes (it takes a minute or two), and get a detailed report with the famous A-F grade. Note that API v4 requires a one-time registration, and tests are rate-limited so you can't hammer it.

Details

Free to start. You may need a free key, but no credit card.

Auth: Free key (no card)

Rate limit: Limited concurrent assessments; watch X-Max-Assessments / X-Current-Assessments headers and back off on HTTP 429.

Verified: 2026-09-13

Best for: personal developer business fun

Read the docs Back to catalog

Setup

  1. Complete the one-time API v4 registration described in the docs.
  2. Start an assessment with /analyze?host=DOMAIN.
  3. Poll the same URL (add &fromCache=on after starting) until 'status' is READY.
  4. Read the 'grade' per endpoint and the details for anything below A.
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