SSL/TLS Certificate Lookup

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

ec2-63-176-213-97.eu-central-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-63-176-213-97.eu-central-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
degruyterbrill.com
Valid from
Feb 10, 2026
Valid until
Mar 11, 2027 (224 days remaining)
Public key
RSA 2048-bit
Serial
016E678787536B757D02C72D69E0B5C9
SHA-256 fingerprint
02:26:C7:E5:FB:DB:44:6F:2F:18:D3:42:5E:6C:FD:DE:49:14:8B:EC:1A:4C:B6:EB:3C:DE:D0:F4:2E:24:8F:26
Chain
Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (2)
*.degruyterbrill.com, degruyterbrill.com

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-63-176-213-97.eu-central-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-63-176-213-97.eu-central-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.