certz
Create a certificate

Create a certificate

Sapphire testnet

Prove control of a domain with a DNS-01 challenge and receive an X.509 certificate signed by the confidential CA, anchored in the on-chain registry. Your keypair is generated in your browser and the certificate is signed by the real CA key inside the Sapphire TEE.

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Step 1 — Enter a domain

The domain you want a certificate for. You will prove control of it in the next step.