SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
vfa-nrw.de
SSL/TLS Certificate
SSL/TLS Certificate for vfa-nrw.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.vfa-nrw.de
- Valid from
- Sep 10, 2025
- Valid until
- Sep 24, 2026 (61 days remaining)
- Public key
- RSA 2048-bit
- Serial
- C4696AEC19720CD40A884437DF5CED6D
- SHA-256 fingerprint
- E7:6F:41:52:F3:EB:8C:03:C1:2C:E5:FE:DF:BA:83:37:48:E2:B4:99:D1:22:81:DA:93:2C:97:AE:E0:CB:ED:C5
- 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 vfa-nrw.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch vfa-nrw.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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