Capture web pages as signed, timestamped evidence; compare, watch and verify them.
Free
2 servers across browser automation and security & testing. The largest is ProofSnap.
Browser Automation · Security & Testing
Capture web pages as signed, timestamped evidence; compare, watch and verify them.
Check by manifest SHA-256, without an account, whether the ProofSnap API issued an evidence package.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.