SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gen2008.com
SSL/TLS Certificate
SSL/TLS Certificate for gen2008.com
Hostname mismatch- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- estate.sesh.jp
- Valid from
- Oct 7, 2025
- Valid until
- Oct 31, 2026 (59 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 5443EC716513FE8B1DB65FCCD8D6C258
- SHA-256 fingerprint
- 21:F4:47:EA:CE:8A:65:91:E6:85:BE:9F:9D:A2:AB:AB:53:2C:A0:2C:15:7B:86:E9:31:41:2C:EE:22:F3:1F:AA
- Chain
- JPRS Domain Validation Authority - G4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch gen2008.com 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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