SSL/TLS Certificate Lookup

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

ec2-52-79-148-128.ap-northeast-2.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-52-79-148-128.ap-northeast-2.compute.amazonaws.com

Expired
Issued by (CA)
COMODO CA Limited
Subject
ssl.kcrone.net
Valid from
Oct 11, 2016
Valid until
Jan 9, 2018 (expired 3231 days ago)
Public key
RSA 2048-bit
Serial
089C15F987F8FCC234F729E933389E15
SHA-256 fingerprint
0B:7A:0B:93:D3:A7:58:90:2B:4F:76:5F:0F:DA:BF:EC:E8:29:D5:F6:F6:F7:B9:D1:77:0D:9F:F3:4E:8E:69:2B
Chain
COMODO RSA Domain Validation Secure Server CA → COMODO RSA Certification Authority → AddTrust External CA Root
Subject Alternative Names (2)
ssl.kcrone.net, www.ssl.kcrone.net

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-52-79-148-128.ap-northeast-2.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-52-79-148-128.ap-northeast-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.