SSL/TLS Certificate Lookup

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

ec2-52-29-121-48.eu-central-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-52-29-121-48.eu-central-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
capquest.ai
Valid from
Aug 3, 2026
Valid until
Feb 16, 2027 (101 days remaining)
Public key
RSA 2048-bit
Serial
0828B4E0366B69948321282B40A33524
SHA-256 fingerprint
57:BF:0C:27:98:D7:F1:2B:F8:D5:5D:CC:A4:64:98:DA:57:A7:62:F1:8F:35:21:F5:42:D9:EE:DC:FF:8B:66:A8
Chain
Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (2)
*.capquest.ai, capquest.ai

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-52-29-121-48.eu-central-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-52-29-121-48.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.