SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
fake---official.com
SSL/TLS Certificate
SSL/TLS Certificate for fake---official.com
Self-signed- Issued by (CA)
- fake---official.com
- Subject
- fake---official.com
- Valid from
- Apr 24, 2024
- Valid until
- Apr 24, 2025 (expired 537 days ago)
- Public key
- RSA 2048-bit
- Serial
- 022EBEDD25
- SHA-256 fingerprint
- D0:B3:3D:B4:C5:CD:6C:49:3B:63:21:11:39:EE:86:4D:7B:B4:A1:CA:42:4C:87:52:90:D2:5A:7A:2A:F1:09:26
- Chain
- fake---official.com
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by fake---official.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch fake---official.com continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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