SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wij-zien.nl
SSL/TLS Certificate
SSL/TLS Certificate for wij-zien.nl
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- wij-zien.nl
- Valid from
- Jun 26, 2026
- Valid until
- Sep 24, 2026 (63 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05C2E8588509CACCFEBBE16AB0401A7E4A55
- SHA-256 fingerprint
- A4:37:60:D1:6C:41:47:C6:5F:E9:19:E2:B9:27:1E:4C:C1:CD:C1:7B:98:A9:59:1C:6D:9A:E9:39:CA:9F:FA:BB
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by wij-zien.nl's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch wij-zien.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.