SSL and Certificates

These tools cover HTTPS certificates. SSL Checker tests a host name and lists its logged certificates with days left. The SSL Certificate Decoder and CSR Decoder read pasted PEM text in your browser, and CAA Record Lookup shows which certificate authorities may issue for a domain.

Tools in this group

• CAA Record Lookup — Type a domain to see its CAA records and which certificate authorities may issue for it.
• CSR Decoder — Paste a CSR to read its subject, SANs and key, and verify its signature, all in your browser.
• SSL Certificate Decoder — Paste a PEM certificate or chain to read every field, decoded in your browser.
• SSL Checker — Type a host name to check its HTTPS setup and the certificates logged for it, with days left.