SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-52-56-152-102.eu-west-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-52-56-152-102.eu-west-2.compute.amazonaws.com
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- atcleeds.co.uk
- Valid from
- Oct 3, 2025
- Valid until
- Jan 1, 2026 (expired 203 days ago)
- Public key
- EC 256-bit
- Serial
- 069DF569689453A88DCFC40B1D80EA647237
- SHA-256 fingerprint
- 4D:27:36:F6:EC:8D:6C:9B:A2:6D:32:B4:4B:DC:2C:CB:BE:1C:90:CB:59:70:95:2E:A3:5F:98:AF:61:6A:BA:77
- Chain
- E7 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-52-56-152-102.eu-west-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-52-56-152-102.eu-west-2.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.