Paste a host and get a verdict you can act on: is the certificate still valid, does it match the name, and does the chain look trustworthy?
Readable tables cover validity windows, alternative names, issuers, and the chain. Certificate transparency results list hostnames that have appeared for the target before — handy when hunting forgotten subdomains or odd certificates.
If you already checked recently and want a fresh pass after a cert renewal, use Recheck.