SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-18-193-231-53.eu-central-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-18-193-231-53.eu-central-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- DigiCert Inc
- Subject
- mail.mnx.de
- Valid from
- Aug 14, 2026
- Valid until
- Feb 27, 2027 (106 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0F2984054AE91DCFFDE6842AAF372555
- SHA-256 fingerprint
- 2D:92:0C:F8:7C:82:34:9C:E7:ED:BC:46:DE:E5:D0:CE:6A:B9:2D:7D:20:76:F6:81:7B:1B:DA:71:A3:F6:81:87
- Chain
- GeoTrust TLS RSA CA G1 → DigiCert Global Root G2
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 30, 2026.
Never get surprised by ec2-18-193-231-53.eu-central-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-18-193-231-53.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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.