Developer Tools
SSLCanary
Last updated 2026-08-17 · benchmark checked 2026-09-21 · unchanged since 2026-08-17 — deterministic & reproducible
Free tool that checks any website's SSL certificate validity and expiry date.
Are you the maker of SSLCanary? Claim this listing. It is free, takes a meta tag, a DNS record or GitHub admin rights, and never changes the score.
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To cite this score: legit.show/s/sslcanary-com/2026-09-21. That address never changes; this page moves with every re-measure.
Legit.Show scored SSLCanary 89/100 on 2026-09-21, measured across all 7 frames from its public surface. legit.show/s/sslcanary-com/2026-09-21
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 — 100/100How this compares across the catalogue: The Web Security Baseline
- Privacy — 25/100How this compares across the catalogue: The Privacy Gap
- 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 — 991 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)
Sources and updates
- Description
- Taken from sslcanary.com's own website on 2026-08-17.
- Operator
- SSLCanary, as named in sslcanary.com's terms, privacy page or footer.
- Benchmark
- Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-09-21.
Put together from public information, without SSLCanary's involvement. If anything here is wrong, tell us and a person will check it.
Visit SSLCanary → · Alternatives to SSLCanary → · How this was measured →