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 uosamsportal.com

Expired
Issued by (CA)
Let's Encrypt
Subject
uosamsportal.com
Valid from
Jul 2, 2025
Valid until
Sep 30, 2025 (expired 404 days ago)
Public key
RSA 2048-bit
Serial
05C3C0734ED3266C6FC4A01E822A50331814
SHA-256 fingerprint
EE:43:9E:F0:7F:35:DE:FD:9F:95:5C:E3:2F:2A:40:20:6D:64:7E:19:5D:BD:16:D8:89:2E:4A:0F:EE:1C:75:3F
Chain
R10 → ISRG Root X1
Subject Alternative Names (2)
*.uosamsportal.com, uosamsportal.com

Certificate Authority Authorization (CAA)

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

Never get surprised by uosamsportal.com's certificate expiring

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

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.