SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-54-93-92-45.eu-central-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-54-93-92-45.eu-central-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- www.saas-fee.ch
- Valid from
- May 31, 2026
- Valid until
- Aug 29, 2026 (32 days remaining)
- Public key
- EC 384-bit
- Serial
- 06033AA27EAA1927B7D383B7195D602CC36C
- SHA-256 fingerprint
- A4:6D:B6:DA:5F:2B:50:9A:24:82:16:5E:B4:61:65:C1:FF:A6:03:74:BB:84:1B:56:37:C6:6A:02:39:CE:C3:F2
- Chain
- YE2 → Root YE → ISRG Root X2 → 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 ec2-54-93-92-45.eu-central-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-54-93-92-45.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.