SSL/TLS Certificate Lookup

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

ec2-18-159-189-252.eu-central-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-18-159-189-252.eu-central-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
*.sites.avoine.com
Valid from
Sep 14, 2026
Valid until
Mar 30, 2027 (137 days remaining)
Public key
RSA 2048-bit
Serial
0668EE585D578643A0989C27C574EDB4
SHA-256 fingerprint
62:7A:F9:EA:28:E0:24:AB:18:CC:A9:00:BE:03:AF:D6:1D:35:24:19:6A:81:37:9C:B7:B0:0E:65:32:08:CC:C9
Chain
Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (10)
*.sites.avoine.com, *.sites2.avoine.com, *.sites3.avoine.com, *.sites4.avoine.com, *.sites5.avoine.com, sites.avoine.com, sites2.avoine.com, sites3.avoine.com, sites4.avoine.com, sites5.avoine.com

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-18-159-189-252.eu-central-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-18-159-189-252.eu-central-1.compute.amazonaws.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.