SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
braim-corp.jp
SSL/TLS Certificate
SSL/TLS Certificate for braim-corp.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- braim-corp.jp
- Valid from
- Nov 5, 2026
- Valid until
- Feb 3, 2027 (79 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0595F03AA005E6A1F87E5A444FDB8A9F0AA7
- SHA-256 fingerprint
- 3E:AB:C0:C6:15:07:40:C5:48:F4:4A:9A:D7:9F:C7:C4:32:80:82:80:C1:F5:08:83:D4:94:43:57:72:D6:A1:BB
- 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 Oct 5, 2026.
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Uptime
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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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