SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sano-ganka.com
SSL/TLS Certificate
SSL/TLS Certificate for sano-ganka.com
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- my2.interlink.or.jp
- Valid from
- Jul 10, 2026
- Valid until
- Oct 8, 2026 (59 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05743127017CBE741F60F5C26B0B93ADE6DF
- SHA-256 fingerprint
- 90:04:1C:EF:32:03:05:43:DD:4A:B7:4A:C2:46:49:28:F7:2A:53:08:31:D5:D7:88:0E:89:81:DA:02:32:5A:3F
- Chain
- YR2 → Root YR → ISRG Root X1
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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