Overview
Verify a site's Certz certificate: CA chain, on-chain registry, and a live proof-of-possession challenge beside TLS.
Certz Verifier is an advisory browser extension for checking Certz-issued certificates. When opened on a website, it verifies: - the site publishes a Certz certificate - the certificate is signed by the pinned Certz CA root - the certificate matches the current hostname - the certificate digest is recorded on the Oasis Sapphire testnet registry - the site can sign a fresh nonce, proving it currently holds the matching private key Certz Verifier does not replace browser TLS validation, install a trusted root, change the browser lock icon, or intercept HTTPS traffic. It is an out-of-band verification layer for the Certz research demo.
Details
- Version0.2.2
- UpdatedJune 29, 2026
- Size273KiB
- LanguagesEnglish
- DeveloperCellact BV
Van Heuven Goedhartlaan 13D Amstelveen 1181 LE NLEmail
jonakandel@gmail.comPhone
+31 6 23776855 - TraderThis developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
- D-U-N-S493579443
Privacy
Certz Verifier has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
Certz Verifier handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
