Free online domain lookup tool - quickly check if .com/.net/.org and other major TLDs are available. Batch query support.
Zero dependency · Works offlineEnter your desired domain name (without TLD), select the extensions to check, and click Check. This tool uses DNS queries to quickly determine if a domain is registered.
Note: DNS results may have cache delays. The most accurate method is checking through a domain registrar. Results are for reference only.
How to choose a good domain?
Good domains should be short, memorable, and easy to spell. Prefer .com and avoid numbers/hyphens. Using brand names or keywords helps with SEO.
What if the domain is taken?
Try different extensions (like .net/.io), add prefixes/suffixes to the name, or contact the domain owner to negotiate a purchase.