HTTPS+ Checker is a Firefox browser extension that checks websites for HSTS, HPKP, DANE/TLSA, and DNSSEC configuration. It is intended for users who want to inspect website security mechanisms beyond standard HTTPS.
In the Website firewall, bot & spam protection space, HTTPS+ Checker takes a focused approach. It focuses on checking whether websites publish additional security mechanisms such as HSTS, DANE/TLSA, HPKP, and DNSSEC. It is built as a consumer product for privacy-conscious Firefox users and web security testers. HTTPS+ Checker is free to use. It ships for the web and embeddable surfaces.
It is developed by Beu, and it first shipped in 2018. Key capabilities include HSTS checks, HPKP checks, and DANE/TLSA checks. The interface is available in 32 languages, including Czech, German, and Greek.
Summary written by a language model from the project’s public pages.
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