SSL/TLS Certificate Lookup

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

ec2-44-230-158-252.us-west-2.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-44-230-158-252.us-west-2.compute.amazonaws.com

Self-signed
Issued by (CA)
sni-support-required-for-valid-ssl
Subject
sni-support-required-for-valid-ssl
Valid from
Nov 26, 2018
Valid until
Nov 23, 2028 (752 days remaining)
Public key
RSA 2048-bit
Serial
F8780037AEEA36C9
SHA-256 fingerprint
A2:F9:44:D7:22:F4:B7:F7:38:BC:CD:A2:48:79:76:62:9B:78:9F:1C:58:09:1F:63:77:DC:1D:66:74:CC:A1:EF
Chain
sni-support-required-for-valid-ssl

Certificate Authority Authorization (CAA)

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

This certificate has been served since Sep 25, 2026.

Never get surprised by ec2-44-230-158-252.us-west-2.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-44-230-158-252.us-west-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.