SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
d-edubook.com
SSL/TLS Certificate
SSL/TLS Certificate for d-edubook.com
Valid- Issued by (CA)
- Nijimo, Inc.
- Subject
- d-edubook.com
- Valid from
- Oct 3, 2025
- Valid until
- Nov 2, 2026 (30 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 9304EE1AFCF79D8FF84C8A35BCE57CFE
- SHA-256 fingerprint
- BE:09:03:9E:B8:4E:96:DC:54:24:CD:19:0F:5C:08:B2:E1:C3:BC:42:50:B1:45:3E:F0:5E:B9:51:20:87:09:D1
- 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 15, 2026.
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Uptime
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DNS changes
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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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