The Bulk Domain Availability Checker is a free online tool that lets you check the registration status of multiple domain names simultaneously — saving you from querying them one by one. Whether you are brainstorming a brand name, building a domain portfolio or researching niche opportunities, checking domains in bulk is a significant time-saver.

Simply paste a list of domain names (up to 100 at a time) and the tool queries the WHOIS and registry database for each one, returning an instant available or registered status for every domain on your list.

How to Check Multiple Domains

• Enter or paste your list of domain names — one per line
• Include the TLD extension (.com, .net, .org, .io, etc.) for each domain
• Click Check Availability
• Review results: green = available, red = taken

Tips for Domain Research

• Check multiple TLD variants simultaneously (.com, .net, .co) for the same name
• Act fast on available domains — register immediately if interested
• Look for expired domains using our Domain Age Checker for added value
• Combine with WHOIS Checker to see expiry dates on registered domains

This tool is free with no registration required. Results are pulled in real time from domain registries for maximum accuracy.