Domain Availability Checker
Search domain availability across popular and professional TLDs with fast WHOIS checks
Domain Input
Allowed: a-z, 0-9, hyphen (cannot start/end with hyphen), 1-63 characters
Popular TLDs (default)
Professional
Technology
Business
Country
Results
| Domain | Status | WHOIS | Time |
|---|
When to Use Domain Availability Checker
Brand Naming
Validate brand name ideas across multiple TLDs before design or registration.
Portfolio Expansion
Investors can scan multiple extensions to spot available opportunities.
Product Launch
Quickly check availability for product or feature names before launch.
Legal Clearance
Check domains when reviewing trademarks for market conflicts.
Competitive Research
Discover which extensions competitors control vs. what is open.
Startup Pivots
Evaluate alternative naming directions rapidly across TLD categories.
Frequently Asked Questions
What TLD groups are supported?
Popular defaults (.com, .org, .net, .pro, .io, .me, .ai) plus Professional (.co, .cc, .top, .info, .xyz, .site, .online), Technology (.app, .dev, .tech), Business (.biz, .store, .shop, .inc), and Country (.us, .uk, .cn, .jp, .de).
Do you use any paid API?
No. The tool uses direct WHOIS lookups from your server to registry WHOIS servers and parses standard responses.
How fast are the checks?
Each TLD query takes a few hundred milliseconds. Total time depends on the number of TLDs selected. A short delay is added to be polite to WHOIS servers.
Are results 100% accurate?
Results are highly reliable but final availability should be confirmed at your domain registrar before purchase.
Can I export the results?
Yes. Use the Download button to export a CSV file and Copy to put the table into your clipboard.
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