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-d-a.de
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- s-d-a.de
- Valid from
- Sep 13, 2026
- Valid until
- Dec 11, 2026 (76 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0BE41B94FD90D6CF99D580BE5B13C56C
- SHA-256 fingerprint
- B0:85:F8:89:7B:F6:10:68:53:EA:D8:7F:3A:07:DE:6B:5C:01:14:37:15:06:7A:04:B2:9B:9A:06:E0:D2:B4:F9
- Chain
- Encryption Everywhere DV TLS CA - G2 → DigiCert Global Root G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by s-d-a.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch s-d-a.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.
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