badssl.com
badssl.com
Test TLS/SSL configurations with a wide range of certificates
Visit website →On this page: About · Where it fits · Information · Facts · Related tools (6) · FAQ
About badssl.com
badssl.com is a testing tool that provides a comprehensive collection of TLS/SSL certificates and configurations for developers to verify their clients' behavior. It includes tests for expired certificates, wrong hosts, self-signed certificates, mixed content, various cipher suites, and protocol versions. The site also offers client certificate downloads and tests for certificate transparency, HSTS, and known bad certificates from vendors like Lenovo and Dell.
Published 2026-08-13 · Links checked 2026-09-09
Where badssl.com fits
badssl.com is tagged #ssl, #tls, #testing, #security. Each tag links to every listed tool that shares it.
- #ssl — the only listing with this tag so far
- #tls — the only listing with this tag so far
- #testing — 6 listed tools share this tag
- #security — 14 listed tools share this tag
badssl.com is one of 77 Dev Tools listed on ToolDock. Also in Dev Tools: n8n, Replit, Exa — see the Dev Tools ranking (neutral, stable positions; no paid placement).
Related Dev Tools
More Dev Tools
Other tools listed in the same category.
Cloudflare
www.cloudflare.com
One platform for apps, agents, and workforce
✓ Links checked Sep 2026View →
Hoppscotch
hoppscotch.io
Lightweight open-source API client that runs in the browser
Platforms: Web app (installable)
✓ Links checked Sep 2026View →
Top Dev Tools right now
The highest-ranked tools in this category — see the full Dev Tools ranking.
Frequently asked questions
What is badssl.com?
badssl.com is a Dev tool: Test TLS/SSL configurations with a wide range of certificates. It is listed on ToolDock with a direct link to its official site.
Is badssl.com free?
Yes — badssl.com is listed as free on ToolDock. Pricing label set at listing time; official pricing page linked where verified — see the official website for current details.