SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
necopa.de
SSL/TLS Certificate
SSL/TLS Certificate for necopa.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- necopa.de
- Valid from
- Nov 10, 2025
- Valid until
- Dec 1, 2026 (57 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 7FF36B665F9031760EA429D121AE1679
- SHA-256 fingerprint
- D8:23:69:F8:8A:06:2F:4C:43:2A:45:3C:4B:03:38:BB:12:EF:65:E1:ED:5C:36:8A:D2:D1:0E:EA:0E:7A:51:AD
- 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 Oct 5, 2026.
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Uptime
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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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