SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
das-basisdienst.de
SSL/TLS Certificate
SSL/TLS Certificate for das-basisdienst.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.dwd.de
- Valid from
- Nov 5, 2025
- Valid until
- Nov 5, 2026 (82 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 4D495700CBDE83F6363D8D5AB154B9FB
- SHA-256 fingerprint
- FF:2C:B8:89:F1:F5:C6:7A:0D:52:58:DA:71:C2:C0:A6:A6:E2:F7:63:8F:60:76:18:35:4D:75:4B:14:29:F0:19
- Chain
- Sectigo Public Server Authentication CA OV 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.
Never get surprised by das-basisdienst.de's certificate expiring
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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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