Free Domain Name Search — Domain Checker & Availability Tool
Free domain search tool — check domain availability across .com, .net, .org, .io, .ai, .app, .dev and more. The free Namecheap alternative for instant domain name search. No sign-up required.
Tips for choosing a domain name
- .com is the strongest extension for credibility and memorability.
- .io and .ai are widely accepted for tech and AI startups.
- .app and .dev are Google-owned TLDs — trusted for software products.
- Keep your domain name short — under 15 characters ideal, under 10 even better.
- Avoid hyphens and numbers — hard to say aloud, easy to mistype.
- Check domain availability for your brand name as a .com even if you plan to use another extension.
Domain name search: which extension should you choose?
Use the domain checker above to search availability across these extensions. Each TLD sends a different signal to visitors, investors, and search engines.
The global default. Most trusted extension for websites and businesses. When .com availability is open for your name, always register it — it is the most credible and easiest for users to remember.
The de-facto TLD for developer tools, SaaS, and tech startups. Widely recognised in the startup ecosystem globally.
The domain name of choice for AI and machine learning products. Signals your category instantly to visitors.
Google-owned TLD with built-in HTTPS. Strong for consumer-facing apps and SaaS products.
Google-owned, HTTPS-only TLD. Signals a developer-focused product — popular for APIs, CLIs, and dev tools.
Short, global, and widely used by startups worldwide when .com availability is taken.
The standard for nonprofits, communities, and open-source projects. Signals trust and mission-driven purpose.
Free Namecheap alternative for domain search
Namecheap is one of the most popular domain registrars — but to do a domain search on Namecheap, you need to create an account and navigate their full checkout flow. This free domain checker gives you the same real-time data, with no account and no upsells.
No account, no upsells
Namecheap domain search requires sign-up and pushes privacy protection, hosting, and SSL during checkout. This tool shows domain availability only — free, instant, no registration.
Same data source
Both use real-time RDAP — the official global registry for domain availability. Domain search results are identical.
Zero registration
Namecheap domain search requires creating an account. This tool is completely free with no email or sign-up required.
10 extensions at once
Run one domain name search and check .com, .net, .io, .ai, .app, .dev and more simultaneously — faster than one at a time.
Availability only
Namecheap adds upsells at every step of their domain search flow. This checker shows availability — nothing else.
How to do a domain name search in 3 steps
Enter your domain name or keyword
Type just the name (e.g. "mybusiness") in the domain search box above — the checker automatically appends each extension for you.
Click "Check Availability"
The domain checker queries live RDAP data and returns domain availability results for all 10 extensions in seconds.
Review your domain search results
Available domains show green. Taken domains show red. Try different keywords if your first search returns all taken results.
Domain name search tips — how to pick a great domain
Keep domain names short
Under 15 characters is ideal. Under 10 is even better. Short domain names are easier to type, share, and remember.
Make it pronounceable
If you can't say it clearly out loud, visitors can't remember it. Test by saying it to someone and asking them to type it.
Avoid hyphens and numbers
Hyphens are hard to dictate. Numbers create ambiguity. Both reduce domain name recall and trust.
Always check .com availability
Even if you use .io or .ai, check .com availability and register it to protect your brand from squatters.
Domain name search — frequently asked questions
Everything you need to know about using this tool.