SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
oka-machikyou.com
SSL/TLS Certificate
SSL/TLS Certificate for oka-machikyou.com
Self-signed- Issued by (CA)
- fvpn001.softether.net
- Subject
- fvpn001.softether.net
- Valid from
- Jun 28, 2026
- Valid until
- Dec 31, 2037 (4069 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0
- SHA-256 fingerprint
- AE:CE:12:60:06:37:23:C2:57:87:40:C6:99:81:0B:8C:CA:1E:BB:1C:8F:B3:35:21:FC:F3:A8:AD:43:6D:F9:82
- Chain
- fvpn001.softether.net
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 Oct 31, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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