SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
shimbun-online.com
SSL/TLS Certificate
SSL/TLS Certificate for shimbun-online.com
Valid- Issued by (CA)
- Nijimo, Inc.
- Subject
- *.shimbun-online.com
- Valid from
- Feb 3, 2026
- Valid until
- Mar 5, 2027 (157 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 29D69F3DE45C1D4C91E3229AFDE9C786
- SHA-256 fingerprint
- 4A:AF:09:62:4A:56:F4:38:73:F5:D8:5C:2B:8E:15:13:02:A1:B8:BC:BA:6F:B8:15:14:71:40:A3:47:79:C3:CE
- Chain
- FujiSSL RSA Domain Validation Secure Server CA 2 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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 Sep 25, 2026.
Never get surprised by shimbun-online.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch shimbun-online.com 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.