Domain Checker - Check Domain Availability Instantly

Free domain name search tool to check if a domain is available across .com, .net, .org, .io, and 12 more extensions. Find and register the perfect domain name for your website, business, or project.

Enter domain name without extension (e.g., "example", not "example.com")

Note: This tool provides an estimate based on DNS records. A domain showing as "Likely Available" may still be registered but not configured. Always verify availability through an official domain registrar before purchasing.

Domain Checker - Search Domain Name Availability Across TLDs

Use this free domain checker to search if a domain name is available before you buy it. Check domain availability across 16 popular extensions including .com, .net, .org, .io, and country-specific TLDs. Whether you are starting a new business, launching a blog, or building a web app, finding the right domain name starts with checking what is available.

Enter any domain name and instantly see availability results across multiple top-level domains. The domain name search checks .com, .net, .org, .io, .dev, .app, .co, .ai, .tech, and country-code TLDs like .nl, .de, .uk, .fr, .es, .it, and .eu. Each extension is checked in parallel using DNS record queries, so you get results in seconds rather than checking one domain at a time.

Choosing the right domain extension matters for branding, trust, and SEO. The .com extension remains the most recognized and trusted globally, with over 150 million registrations worldwide. Tech startups often prefer .io or .dev for their modern feel. Country-specific TLDs like .nl, .de, or .fr signal local relevance and can improve search rankings in that specific country. The .ai extension has surged in popularity with the rise of artificial intelligence companies.

Domain names are first-come, first-served, so check availability early in your branding process. If your preferred .com is taken, consider alternatives: try a different TLD (.io, .co, .app), add a prefix (get-, try-, use-, go-), or explore creative variations of your brand name. Avoid hyphens and numbers in domain names, as they reduce memorability and look less professional. Short domain names (under 15 characters) are easier to type, remember, and share on social media.

This domain availability checker uses DNS lookups to determine registration status, providing a strong indication of whether a domain is available or taken. For definitive results, always confirm availability through an official domain registrar like Namecheap, Cloudflare Registrar, or Porkbun before making business decisions. To see detailed registration information for a taken domain, including expiration dates and registrar details, use our WHOIS Lookup tool.

How the Domain Checker Works

  1. 01Enter the domain name you want to check (without the extension)
  2. 02Select which TLD extensions to search (.com, .net, .org, .io, and 12 more)
  3. 03Click Check Availability to query all selected domains in parallel
  4. 04Green means likely available, red means taken - verify with a registrar before purchasing

How to Choose the Best Domain Name

A good domain name is short (under 15 characters), memorable, and easy to spell. Prefer .com when possible since it is the most trusted extension with over 150 million registrations. If your .com is taken, consider .io for tech projects, .co for startups, .dev for developer tools, or your country code (.nl, .de, .fr) for local businesses. Avoid hyphens and numbers as they reduce memorability. Register your domain with a reputable registrar that offers DNS management, WHOIS privacy, SSL certificates, and easy domain transfers.

When to Use a Domain Checker

Use this domain name search tool when brainstorming names for websites, businesses, or side projects. Check availability across multiple TLDs before committing to a brand name. Also useful when exploring alternative extensions if your first choice is taken, or when verifying domain availability before purchasing a trademark.

Common Use Cases

  • Check domain availability before registering a brand name
  • Find available TLD alternatives when .com is taken (.io, .co, .dev, .app)
  • Verify whether a competitor or partner domain is registered
  • Explore country-specific domain availability (.nl, .de, .uk, .fr)
  • Check multiple domain variations for a new project or startup name → WHOIS Lookup

Expert Tips

  • Always register .com first if available - it remains the most trusted and memorable extension globally.
  • Check domain availability before finalizing a brand name. A great brand name with no available domains creates unnecessary friction.
  • Avoid hyphens and numbers in domain names - they reduce memorability and are easy to mistype when spoken aloud.
  • For tech products, .io, .dev, and .app are well-recognized alternatives to .com. Country-specific TLDs like .nl or .de boost local search rankings.
  • Always confirm availability with a registrar before making business decisions - DNS-based checks provide strong indications but are not definitive.

Frequently Asked Questions

How do I check if a domain name is available?→
Enter your desired domain name in the search field above and click Check Availability. The tool checks DNS records across 16 popular TLD extensions simultaneously and shows which domains are available (green) and which are already taken (red).
What is the best domain name checker?→
A good domain checker searches multiple TLDs at once, provides instant results, and is free to use. This tool checks .com, .net, .org, .io, .dev, .app, .ai, and 9 other extensions in parallel. For detailed registration data on taken domains, combine this with our WHOIS Lookup tool.
How do I buy a domain name after checking availability?→
Once you find an available domain, register it through a domain registrar like Namecheap, Cloudflare Registrar, or Porkbun. Prices typically range from $8 to $15 per year for .com domains. Enable auto-renewal and WHOIS privacy to protect your registration.
Which domain extension (TLD) should I choose?→
.com is the most trusted and recognized extension, ideal for businesses and brands. .io and .dev are popular for tech companies and developer tools. .co works well for startups. Country-code TLDs like .nl, .de, or .fr help with local SEO rankings in those specific countries.
Why does a domain show as available but I cannot register it?→
This tool checks DNS records, which provide a strong indication of availability. However, a domain without DNS records may still be registered but not configured (parked or held). Some domains are also in a redemption period after expiring. Always verify availability directly through a registrar before making business decisions.
What is WHOIS and how is it related to domain checking?→
WHOIS is a public database showing domain registration details: who registered it, when it expires, and which registrar manages it. After checking domain availability here, use our WHOIS Lookup tool to see detailed registration information for any taken domain.
Is this domain checker free to use?→
Yes, this domain availability checker is completely free with no limits. All checks happen in your browser using public DNS queries.
How much does a domain name cost?→
Standard .com domains cost $8 to $15 per year at most registrars. Premium or short domains may cost more. Some TLDs like .io ($30 to $50/year) and .ai ($70 to $90/year) have higher base prices. Country-code TLDs vary by country and registrar.

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