SSL/TLS Certificate Lookup

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

ec2-52-30-227-127.eu-west-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-52-30-227-127.eu-west-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
nou.edu.ng
Valid from
Jun 26, 2026
Valid until
Sep 24, 2026 (54 days remaining)
Public key
EC 256-bit
Serial
05677161A8D9814F5D80AACA00EC6E6C119B
SHA-256 fingerprint
5A:3F:4C:B0:66:40:25:24:8C:B0:0B:5D:D2:F8:34:0E:D4:8F:B1:37:23:B6:E9:DD:47:77:88:B7:3F:C4:0E:62
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (17)
acde-quaa.nou.edu.ng, acdetoolkit.nou.edu.ng, acetelelearningconf.nou.edu.ng, fas.nou.edu.ng, fms.nou.edu.ng, foc.nou.edu.ng, foe.nou.edu.ng, fohs.nou.edu.ng, fol.nou.edu.ng, fos.nou.edu.ng, fss.nou.edu.ng, ijmgs.nou.edu.ng, imili.nou.edu.ng, library.nou.edu.ng, nou.edu.ng, retridol.nou.edu.ng, www.nou.edu.ng

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-52-30-227-127.eu-west-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-52-30-227-127.eu-west-1.compute.amazonaws.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.