SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
m-osaka.com
SSL/TLS Certificate
SSL/TLS Certificate for m-osaka.com
Valid- Issued by (CA)
- Nijimo, Inc.
- Subject
- www.m-osaka.com
- Valid from
- Jan 26, 2026
- Valid until
- Jan 26, 2027 (188 days remaining)
- Public key
- RSA 2048-bit
- Serial
- B9CC336BD7D76E692D325530E940F751
- SHA-256 fingerprint
- 64:25:90:4C:22:EB:42:40:F8:B3:EC:E1:3F:B3:98:F3:33:E5:8D:27:34:81:05:BA:D7:1C:D6:4D:9B:D0:B1:09
- Chain
- FujiSSL RSA Organization 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 Jul 22, 2026.
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Uptime
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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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