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 u-m.com

Valid
Issued by (CA)
Let's Encrypt
Subject
equities.no
Valid from
Aug 24, 2026
Valid until
Nov 22, 2026 (75 days remaining)
Public key
RSA 2048-bit
Serial
05E067F6F78301ED26CED5B5EF2E3EC0B63F
SHA-256 fingerprint
55:BD:9C:F6:B9:DF:57:F7:50:40:D5:F3:B1:1D:57:7F:F5:DF:25:FD:AA:2D:46:54:07:40:CA:17:A7:DD:4D:89
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (80)
101.se, a-l.com, a-m.com, avis.org, b-a.com, c-d.com, c-s.com, carina.com, d-e.com, d-m.com, e-j.com, e-n.com, e-q.com, e-v.com, edvardfosshaug.com, equities.no, f-a.com, g-j.com, g-v.com, g-x.com, gg.org, green-point.com, h-q.com, i-k.com, isabellafosshaug.com, j-h.com, j-i.com, j-w.com, k-t.com, karl-oskar.no, l-b.com, l-c.com, lillyfosshaug.com, m-b.com, m-q.com, m-x.com, m-y.com, n-k.com, n-m.com, n-t.com, n-y.com, o-r.com, o-t.com, oscarfosshaug.com, p-g.com, pk.dk, porsgrund.no, q-d.com, q-e.com, q-f.com, q-s.com, q-w.com, r-h.com, r-k.com, r-v.com, rvs.no, s-v.com, shipwreck.no, t-d.com, t-x.com, theodorfosshaug.com, u-a.com, u-i.com, u-m.com, u-n.com, u-t.com, u-y.com, v-j.com, v-w.com, vf.org, x-a.com, x-l.com, xn--id-cja.no, xv.dk, y-s.com, y-v.com, y-x.com, z-a.com, z-d.com, zyr.com

Certificate Authority Authorization (CAA)

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

Never get surprised by u-m.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch u-m.com 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.