SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
a-dept.com
SSL/TLS Certificate
SSL/TLS Certificate for a-dept.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- a-dept.com
- Valid from
- Nov 5, 2026
- Valid until
- Feb 3, 2027 (80 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 061CF6779B1741F51A45AC0DF859C29AB80C
- SHA-256 fingerprint
- 5B:1A:72:67:D3:14:88:EB:4A:59:C8:F3:87:FE:C6:50:04:C0:E5:FF:C7:70:A5:1A:B6:BA:CC:A0:23:BD:F0:A0
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Nov 8, 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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