SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
satok-law.jp
SSL/TLS Certificate
SSL/TLS Certificate for satok-law.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- satok-law.jp
- Valid from
- Oct 1, 2026
- Valid until
- Dec 30, 2026 (68 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05ADD3AE12A396EA69BF50D781F09F14945C
- SHA-256 fingerprint
- B7:94:7C:97:74:13:91:17:0D:D6:57:AF:C7:56:34:49:96:D0:D6:B4:59:E2:C2:4E:C0:D0:02:48:F4:D0:B2:E5
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 10, 2026.
Never get surprised by satok-law.jp's certificate expiring
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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.
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