Domain Availability Checker
Check public DNS records to estimate whether a domain is likely registered. If DNS returns records, it’s probably taken. If DNS returns NXDOMAIN, it may be available (confirm at a registrar).
Enter a domain name, then click Check.
Results
Summary
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DNS details
Tool description
“Domain availability” is ultimately determined by registration status at the registry/registrar. This tool checks DNS records as a fast signal: domains with active DNS are typically registered.
How to use
- Enter a domain (e.g., example.com).
- Choose record types to query.
- Click Check to view summary and DNS output.
Why it’s useful
- Quickly see if a domain is already in active use (DNS records exist).
- Debug DNS configuration when a site isn’t resolving.
- Copy a clean summary for documentation or tickets.
FAQs
No. NXDOMAIN means DNS has no records at the resolver. A domain can be registered but not configured. Always confirm at a registrar.
Many WHOIS services have rate limits and CORS restrictions. DNS provides a fast, privacy-preserving signal and is widely accessible.
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