SSL/TLS Certificate Lookup

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

ec2-52-52-55-223.us-west-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-52-52-55-223.us-west-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
GoDaddy.com, Inc.
Subject
*.myonsitehealthcare.com
Valid from
Dec 17, 2025
Valid until
Jan 5, 2027 (50 days remaining)
Public key
RSA 2048-bit
Serial
D08277091A254888
SHA-256 fingerprint
91:92:BD:7B:50:2D:EF:1A:AE:CE:7D:37:CD:D5:D7:C5:1B:EF:18:60:BA:46:61:93:33:DB:6D:F8:BB:E4:BA:B2
Chain
Go Daddy Secure Certificate Authority - G2 → Go Daddy Root Certificate Authority - G2
Subject Alternative Names (2)
*.myonsitehealthcare.com, myonsitehealthcare.com

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 21, 2026.

Never get surprised by ec2-52-52-55-223.us-west-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-52-52-55-223.us-west-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.