SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
janbijlsma.nl
SSL/TLS Certificate
SSL/TLS Certificate for janbijlsma.nl
Self-signed- Issued by (CA)
- vserver48.axc.nl
- Subject
- vserver48.axc.nl
- Valid from
- Jan 27, 2026
- Valid until
- Jan 27, 2027 (187 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 6C0037503C311A28771025039145148A5DE6DEA1
- SHA-256 fingerprint
- 3B:F2:C5:C9:D5:22:6F:6C:F4:1D:CF:D7:9E:B3:6D:5E:8B:B5:04:A7:B0:89:6B:F2:19:B6:B6:70:DE:0D:D9:99
- Chain
- vserver48.axc.nl
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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