SSL/TLS Certificate Lookup

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

ec2-3-135-129-155.us-east-2.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-3-135-129-155.us-east-2.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
*.prod.validic.com
Valid from
Oct 24, 2026
Valid until
May 9, 2027 (176 days remaining)
Public key
RSA 2048-bit
Serial
09F20100C995013AC819C5BD5B5C6F43
SHA-256 fingerprint
F7:B9:06:0F:CA:C5:6E:A3:E5:BD:84:71:D5:02:9F:C7:85:A4:91:E4:F5:1D:A9:1F:36:DD:62:6B:9C:91:BA:D8
Chain
Amazon RSA 2048 M04 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (8)
*.prod.validic.com, *.syncmydevice.com, *.v2.validic.com, *.validic.com, prod.validic.com, syncmydevice.com, v2.validic.com, validic.com

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-3-135-129-155.us-east-2.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-3-135-129-155.us-east-2.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.