SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sh-gok.tokyo
SSL/TLS Certificate
SSL/TLS Certificate for sh-gok.tokyo
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sh-gok.tokyo
- Valid from
- Oct 8, 2026
- Valid until
- Jan 6, 2027 (57 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06554B0EB3DA3A0D7F412ED9607DEAFA0C77
- SHA-256 fingerprint
- 90:9E:5A:35:F1:D0:13:ED:BF:CF:48:3B:83:62:0C:00:2B:97:B4:B0:28:77:8F:02:73:C5:0A:59:E9:18:10:60
- Chain
- YR1 → Root YR → ISRG Root X1
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 10, 2026.
Never get surprised by sh-gok.tokyo's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sh-gok.tokyo continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.