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 msunonline.org

Valid
Issued by (CA)
Internet2
Subject
msun.edu
Valid from
Sep 14, 2026
Valid until
Apr 1, 2027 (169 days remaining)
Public key
RSA 4096-bit
Serial
68C6434C47D25B9AE60DBF743872A4
SHA-256 fingerprint
0D:D2:AE:75:3F:BB:C5:BF:95:84:A1:49:27:8A:FA:64:B4:9C:CD:84:F4:62:CE:97:F1:5C:BA:32:51:10:94:3E
Chain
InCommon Intermediate CA - DVG2C → emSign Root TLS CA - G1 → emSign Root CA - G1
Subject Alternative Names (22)
careers.msun.edu, helpdesk.msun.edu, knmc.msun.edu, msun.edu, msunonline.org, mtleadhership.msun.edu, mtprof.msun.edu, my.msun.edu, northnav.msun.edu, pwdreset.msun.edu, webex.msun.edu, www.careers.msun.edu, www.helpdesk.msun.edu, www.knmc.msun.edu, www.msun.edu, www.msunonline.org, www.mtleadhership.msun.edu, www.mtprof.msun.edu, www.my.msun.edu, www.northnav.msun.edu, www.pwdreset.msun.edu, www.webex.msun.edu

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 28, 2026.

Never get surprised by msunonline.org's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch msunonline.org continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.