SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cfj-net.de
SSL/TLS Certificate
SSL/TLS Certificate for cfj-net.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.cfj-net.de
- Valid from
- Jan 5, 2026
- Valid until
- Jan 26, 2027 (186 days remaining)
- Public key
- RSA 2048-bit
- Serial
- D5413435898AECB8E8C40CCD56DD7EBF
- SHA-256 fingerprint
- 48:4A:69:C7:74:AE:EC:B4:33:CC:10:6C:B8:F1:64:74:F2:45:7C:9A:AF:FC:13:85:6B:FC:6E:4A:37:8E:7B:77
- 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.
Never get surprised by cfj-net.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch cfj-net.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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