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-a-y.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.s-a-y.de
- Valid from
- Dec 29, 2025
- Valid until
- Jan 12, 2027 (65 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 39969D2276E0D4E542A81450FFCBAF47
- SHA-256 fingerprint
- F4:95:FA:C5:F7:B2:B2:45:4B:70:E2:46:F4:A3:04:B1:03:C5:EB:94:10:0C:5F:3D:DF:35:EC:14:A6:7C:D5:96
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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 Nov 5, 2026.
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Uptime
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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.
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