SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for nam.university

Valid
Issued by (CA)
Let's Encrypt
Subject
www.nam.university
Valid from
Jul 11, 2026
Valid until
Oct 9, 2026 (33 days remaining)
Public key
RSA 2048-bit
Serial
05C7748E8F4CA3E096DE3F0C94FB3988B916
SHA-256 fingerprint
CC:88:20:A9:6C:2A:0A:C0:FA:4D:DA:15:70:54:E5:F1:A8:1E:CB:2E:81:CF:CA:5E:D8:D4:C8:2D:DA:71:31:DA
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
nam.university, www.nam.university

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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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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