SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
10-2-4.net
SSL/TLS Certificate
SSL/TLS Certificate for 10-2-4.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- webmail.10-2-4.net
- Valid from
- Oct 24, 2026
- Valid until
- Jan 22, 2027 (70 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 054D40DD8C581881A4DBA12EE96396F1FC50
- SHA-256 fingerprint
- 45:0A:1F:7C:54:D6:B2:F1:6B:45:E5:FE:21:B6:03:4D:3C:64:5F:48:09:31:34:04:55:F2:E8:22:75:13:98:7D
- Chain
- YR1 → 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 Oct 26, 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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