SSL/TLS Certificate Lookup

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

ec2-54-203-151-20.us-west-2.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-54-203-151-20.us-west-2.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
byronminick.com
Valid from
Oct 22, 2026
Valid until
Jan 20, 2027 (74 days remaining)
Public key
EC 256-bit
Serial
067BBC9F20B3239E15564B8FBE3DC11FBBA1
SHA-256 fingerprint
46:11:7F:E7:74:D0:76:D5:74:0E:7F:93:DE:74:6D:90:9D:C1:69:E4:10:0A:69:69:72:08:4F:A1:92:7D:53:EE
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (10)
byronminick.com, dustisoft.com, learnwithbyron.com, mesapalmschurch.com, mesapalmssdachurch.com, www.byronminick.com, www.dustisoft.com, www.learnwithbyron.com, www.mesapalmschurch.com, www.mesapalmssdachurch.com

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-54-203-151-20.us-west-2.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-54-203-151-20.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.