IPTool
Fast system administrator tools
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What it is
A domain is a DNS name pointing to resources. NS, A/AAAA, MX and TXT records define routing and verifications.
How it works
Use the check tools to inspect NS, TTL, SOA and WHOIS to assess delegation, ownership and dates.
Examples
- NS check reveals which servers serve the domain.
- WHOIS shows registrar and creation/expiry dates.
Limitations & notes
WHOIS data may be redacted due to GDPR or privacy proxy. DNS changes can be cached (TTL).
FAQ
- What is TTL? Time to live of a DNS record in caches.
- Why do NS differ? Delegation changes or caching effects.