SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
maruka-grp.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for maruka-grp.co.jp
Self-signed- Issued by (CA)
- cs364.xbit.jp
- Subject
- cs364.xbit.jp
- Valid from
- Sep 22, 2026
- Valid until
- Sep 22, 2027 (323 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 2DB93D5039A9D73C22F6C6D1E36E799F143415C2
- SHA-256 fingerprint
- 92:D5:2F:38:D6:70:BA:86:5C:EB:41:95:28:FD:79:FF:B3:1C:CB:18:97:66:5B:CF:A5:1D:D9:04:57:AF:19:FA
- Chain
- cs364.xbit.jp
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 Nov 1, 2026.
Never get surprised by maruka-grp.co.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch maruka-grp.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, 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.