SSL/TLS Certificate Lookup

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

ec2-52-28-81-183.eu-central-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-52-28-81-183.eu-central-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
abctanzania.com
Valid from
Jul 4, 2026
Valid until
Oct 2, 2026 (71 days remaining)
Public key
EC 256-bit
Serial
05929C530404E6F3EDD55E67B9B8AC3766ED
SHA-256 fingerprint
0B:53:2F:75:6A:E5:CB:7A:83:36:72:60:00:2B:A6:8E:63:8C:A0:49:6F:FA:89:BF:33:40:18:3D:06:51:7D:D1
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
abctanzania.com, www.abctanzania.com

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-52-28-81-183.eu-central-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-52-28-81-183.eu-central-1.compute.amazonaws.com continuously, notifying you the moment anything moves across all three signals:

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, DNSSEC, CNAME 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.