SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for s-ata.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- s-ata.de
- Valid from
- Aug 5, 2026
- Valid until
- Nov 3, 2026 (32 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 051AB68CF2A5D8235D4CA263555238009CA4
- SHA-256 fingerprint
- D3:90:9F:C7:25:C0:70:28:FE:40:73:E8:05:04:19:AB:A4:E3:B4:81:AA:EC:1E:B4:8D:95:95:A5:C9:40:95:C7
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 24, 2026.
Never get surprised by s-ata.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch s-ata.de 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.