SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for zoo.work
Valid- Issued by (CA)
- Nijimo, Inc.
- Subject
- zoo.work
- Valid from
- Sep 29, 2026
- Valid until
- Dec 28, 2026 (82 days remaining)
- Public key
- EC 256-bit
- Serial
- 1DF1FAF8CB2640C459670961D8DED847
- SHA-256 fingerprint
- 91:1E:88:4A:F8:92:3E:FF:03:A0:73:12:A3:09:E0:C4:A2:6E:72:8F:33:50:FA:9C:C9:BA:40:4B:02:15:AE:01
- Chain
- FujiSSL ECC Domain Validation Secure Server CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 17, 2026.
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This is today's certificate. Turn on monitoring and we'll watch zoo.work continuously, notifying you the moment anything moves across all three signals:
Uptime
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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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