SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
du-kit.com
SSL/TLS Certificate
SSL/TLS Certificate for du-kit.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.craftpolymers.co.nz
- Valid from
- Aug 1, 2026
- Valid until
- Oct 30, 2026 (55 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05F5AE7DE3746D605A47D7FF52EE3AF490B8
- SHA-256 fingerprint
- B5:A8:6A:A9:1B:06:93:AD:CC:66:4C:5C:D7:A1:2B:E3:C6:B6:B5:5D:4E:8C:63:45:40:91:A8:A4:C4:22:48:BA
- 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 du-kit.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch du-kit.com 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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