SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dig-group.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for dig-group.co.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- dig-group.co.jp
- Valid from
- Jun 19, 2026
- Valid until
- Sep 17, 2026 (53 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05E227A5DA2A6ABB88CA66D971B7A05FEF39
- SHA-256 fingerprint
- 36:29:1C:C6:32:4C:1A:FC:C6:94:1D:84:24:7D:00:88:DC:4B:2F:EA:D8:05:76:E7:2A:66:6A:21:0E:54:CA:10
- 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.
This certificate has been served since Jul 21, 2026.
Never get surprised by dig-group.co.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch dig-group.co.jp 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, 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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