Developer Tools
SSLCanary
Last updated 2026-08-17 · benchmark measured 2026-08-17 — deterministic & reproducible
Free tool that checks any website's SSL certificate validity and expiry date.
Is SSLCanary production-ready?
Legit.Show scores SSLCanary 89 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on SSLCanary (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Performance; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 100/100
- Accessibility — 100/100
- Security — 100/100
- Privacy — 25/100
- Reliability — 100/100
- Standards — 100/100
- Discoverability — 100/100
What we measured
- Security headers present: CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 871 ms to first byte.
- Returns a proper 404 for unknown routes.
- 3 of 3 sampled routes reachable.
- No privacy policy found.
- Sets cookies / loads scripts with no consent prompt.
- Discoverable: structured data, sitemap, OpenGraph image, canonical URL.
Who it's for
Freelancers · Small agencies · MSPs · Enterprise teams · Domain managers
Pricing
Free for 5 domains; paid plans from €9/mo (Solo, 25 domains) to €149/mo (Business, 1000 domains)
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