SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
profunda.nl
SSL/TLS Certificate
SSL/TLS Certificate for profunda.nl
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- profunda.nl
- Valid from
- Jan 15, 2024
- Valid until
- Apr 14, 2024 (expired 837 days ago)
- Public key
- EC 384-bit
- Serial
- 048A7B72412DB66C4C61D1E9841563963A67
- SHA-256 fingerprint
- CB:6D:BD:7D:7D:8A:65:B8:B3:3D:EE:6C:76:7F:76:D4:C1:FC:AE:7D:35:13:88:DF:8E:AD:95:00:10:9A:79:FC
- Chain
- R3 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch profunda.nl 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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