SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
seto-marutto.info
SSL/TLS Certificate
SSL/TLS Certificate for seto-marutto.info
Self-signed- Issued by (CA)
- Unspecified
- Subject
- web02.seto-marutto.info
- Valid from
- Feb 13, 2026
- Valid until
- Feb 13, 2027 (189 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 08A21B8D029B5322
- SHA-256 fingerprint
- 67:41:3F:A1:3F:4B:5E:05:C3:55:2C:49:55:EF:05:B0:87:77:B1:F3:E7:22:E0:B3:65:2A:60:66:75:A4:13:81
- Chain
- web02.seto-marutto.info
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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