Free domain research tool
Domain Availability Checker
Check domain name availability for popular, startup, ecommerce, tech, local, and custom TLDs using fast RDAP pre-checks. Enter a base name, select extensions, add custom TLDs, and quickly see which domains look available, taken, or unknown before verifying at a registrar.
Domain name availability search
Find available domain names faster before you build a brand, website, blog, startup, or online store
A domain name is one of the first decisions people make when starting a website. It becomes part of your brand, email address, search result, social bio, business card, ad campaign, product packaging, and customer memory. A strong domain can make a project feel trusted, professional, and easy to find. A weak or confusing domain can make even a good idea harder to remember.
This free Domain Availability Checker helps you run a fast pre-check across popular, startup, ecommerce, tech, local, and custom domain extensions. Enter a base name such as your brand, tool, blog, store, company, app, or project name. Then choose TLD batches like .com, .net, .org, .co, .io, .ai, .app, .dev, .store, .shop, .pk, .in, .ae, .uk, .us, or .ca. The tool checks RDAP responses and labels results as available, taken, or unknown.
The best domain name is usually short, readable, easy to pronounce, easy to spell, and closely connected to the purpose of the site. A name like namecombiners.com is easier to remember than a long string of hyphens or random words. Before buying any domain, always verify the final result at a registrar because RDAP checks can be limited, rate-limited, delayed, unsupported for some extensions, or temporarily unavailable.
What is a Domain Availability Checker?
A Domain Availability Checker is a tool that helps you see whether a domain name appears to be registered or unregistered. Instead of checking one domain extension manually, you can enter a base name and test many extensions at once. The checker uses RDAP, which is a public lookup system for domain registration data, to make a quick pre-check.
For example, if you enter “mybrand,” the tool can check mybrand.com, mybrand.net, mybrand.org, mybrand.co, mybrand.io, mybrand.ai, mybrand.app, mybrand.dev, mybrand.store, and mybrand.shop. If a lookup returns domain data, the result is treated as taken. If the lookup returns a 404-style response, the domain is treated as likely available. If the lookup fails, times out, or the extension is unsupported, the result is marked unknown.
This tool is useful for bloggers, startup founders, local businesses, ecommerce stores, developers, creators, affiliate site builders, agencies, SaaS makers, product teams, and anyone choosing a domain before launching a website. It helps you quickly compare many options before going to a registrar for final purchase verification.
Multi-TLD search
Check many extensions such as .com, .net, .org, .co, .io, .ai, .app, .dev, .shop, .store, and local TLDs.
Fast pre-check
Use RDAP responses to quickly identify domains that appear available, taken, or unknown before registrar verification.
Export results
Copy results or export CSV so you can compare domain options in your project sheet or brand planning workflow.
How to use the Domain Availability Checker
Start by entering a base name without the extension. For example, use namecombiners instead of namecombiners.com. Then choose a TLD batch based on your project. Popular extensions are useful for general websites. Startup extensions are useful for SaaS, apps, tools, and tech companies. Ecommerce extensions are useful for online stores. Local extensions are useful when your business targets a specific country.
Enter your base name
Type the main brand, business, blog, store, or project name. Keep it clean with letters, numbers, and hyphens only.
Select a TLD batch
Choose popular, startup, ecommerce, tech, or local extensions depending on the kind of website you are planning.
Add custom TLDs
Add custom extensions separated by commas, such as blog, design, pk, agency, tools, or studio.
Check, copy, and verify
Run the RDAP pre-check, copy or export the results, then verify your favorite domain at a trusted registrar before buying.
Domain extension batches included in this checker
Choosing the right extension depends on the project type. A .com domain is still the most familiar for many businesses, but other TLDs can be useful when the .com is taken or when the extension matches your industry.
| Batch | Best For | Included Extensions |
|---|---|---|
| Popular | General websites, blogs, tools, brands, portfolios, and content sites | .com, .net, .org, .co, .io, .ai, .app, .dev, .info, .store, .shop |
| Startup | SaaS projects, apps, AI tools, startups, creator tools, and modern products | .com, .io, .ai, .co, .dev, .app, .so, .xyz, .tech, .vc, .cloud |
| E-commerce | Online shops, product stores, marketplaces, deals, design stores, and retail sites | .com, .shop, .store, .market, .sale, .deals, .art, .design |
| Tech / Dev | Developer tools, software, cloud products, digital services, systems, and studios | .dev, .app, .tech, .cloud, .systems, .digital, .tools, .studio |
| Local / Geo | Country-targeted sites, local businesses, regional services, and geo projects | .com, .co, .pk, .in, .ae, .uk, .us, .ca |
How to choose the best domain name
The best domain name should be simple enough that someone can hear it once and type it correctly later. Short names are usually easier to remember, but clarity matters more than being extremely short. A two-word domain can work very well if the words are clear, relevant, and easy to spell. Avoid complicated spellings unless your brand already owns that identity strongly.
Try saying the domain out loud. If people ask you to repeat it, spell it, or explain it, the name may be too confusing. This is especially important for businesses that use phone calls, podcasts, YouTube videos, local ads, radio ads, or word-of-mouth referrals. A domain should pass the “say it and type it” test.
Also think about long-term use. A domain that is too narrow may limit future growth. For example, a name focused on one product may not work if you expand into related tools later. On the other hand, a name that is too broad may feel generic. The best option often sits between clarity and flexibility.
- Keep the domain short, readable, memorable, and easy to spell.
- Avoid unnecessary hyphens, numbers, confusing abbreviations, and doubled letters.
- Choose an extension that fits your audience, industry, and trust expectations.
- Check social media handle availability before finalizing the name.
- Search for trademarks, existing brands, and confusingly similar names.
- Use .com when possible, but consider .co, .io, .ai, .app, .dev, .shop, or local TLDs when relevant.
- Always verify availability at a registrar before making business decisions.
Domain availability result meanings
Availability tools can help you move faster, but every result should be treated as a pre-check. Different registries, registrars, and TLDs can behave differently. Some may not return RDAP information in the same way. Some domains may appear unknown because of a network issue, timeout, rate limit, or unsupported extension.
Available
The RDAP lookup returned a response that suggests the domain is likely unregistered. Verify at a registrar before buying.
Taken
The RDAP lookup returned registration data, which usually means the domain is already registered by someone.
Unknown
The lookup failed, timed out, was rate-limited, or the TLD may not be supported. Check manually at a registrar.
Domain name examples by project type
Use these examples as inspiration when searching. The exact names may or may not be available, but the structure can help you create stronger options.
Startup Domains
- brandpilot.com
- launchflow.io
- tasknova.ai
- foundryapp.co
- growthstack.dev
E-commerce Domains
- urbanbasket.shop
- craftmarket.store
- dealhaven.com
- stylecorner.design
- freshfinds.market
Tech Domains
- cloudbridge.dev
- stacktools.app
- systempilot.tech
- datastudio.cloud
- webforge.tools
Local Domains
- lahorecars.pk
- dubaidesigns.ae
- torontomovers.ca
- karachistore.com
- londonservices.uk
Common domain search mistakes to avoid
One common mistake is falling in love with only one domain idea. If the exact .com is taken, you may waste time trying small changes that still feel weak. It is better to create a shortlist of multiple names and extensions. A strong alternate name can be better than a confusing version of your first idea.
Another mistake is choosing a domain that is hard to spell. Creative spelling can be brandable, but it can also create lost traffic. If people keep typing the wrong version, your marketing becomes harder. Avoid names that require too much explanation unless you have a strong brand reason.
Finally, do not skip legal and brand checks. A domain may be available but still too similar to an existing company, trademark, app, product, or public brand. Domain availability is only one part of choosing a safe name.
- Do not rely only on one extension or one exact domain idea.
- Do not choose names that are hard to pronounce, spell, or remember.
- Do not use too many hyphens, numbers, or awkward abbreviations.
- Do not assume RDAP availability equals guaranteed purchase availability.
- Do not ignore trademarks, existing brands, and social handle conflicts.
- Do not pick a domain that limits future product or content expansion.
FAQ
Frequently asked questions about domain availability
How does this Domain Availability Checker work?
Enter a base name, choose TLDs, and click check. The tool uses public RDAP lookups to pre-check whether each domain appears available, taken, or unknown.
Is this domain checker free?
Yes. You can check domain availability, copy results, and export the results as a CSV file for free.
What does available mean?
Available means the RDAP lookup suggests the domain may be unregistered. Always confirm at a domain registrar before buying or publishing the name.
What does taken mean?
Taken means the RDAP lookup returned domain registration data, which usually means someone already owns or controls the domain.
What does unknown mean?
Unknown means the lookup failed, timed out, was rate-limited, or the extension may not support the same RDAP behavior. Check manually at a registrar.
Can I check custom TLDs?
Yes. Add custom extensions separated by commas, such as blog, design, pk, agency, studio, or tools.
Should I choose .com or another extension?
.com is widely recognized and often preferred for businesses, but other extensions such as .co, .io, .ai, .app, .dev, .shop, .store, and local TLDs can work well when they match the project.
Is RDAP always accurate?
RDAP is useful for fast pre-checking, but it is not a final purchase confirmation. Registry behavior, rate limits, unsupported extensions, and network issues can affect results.
Can I export the results?
Yes. Use Copy All to copy the domains or Export CSV to download the domain and status list.
What should I do before buying a domain?
Verify at a registrar, check trademarks, search existing brands, check social media handles, review spelling, and make sure the name fits your long-term project.
Related domain and naming tools
Need more name ideas before buying a domain? Try related tools for brand names, business names, startup names, website names, unique name ideas, username generation, and event hashtags. A strong name and matching domain can make your project easier to launch, market, and remember.
Check your domain name availability now
Use the checker above to search popular, startup, ecommerce, tech, local, and custom domain extensions. Copy your shortlist, export the results, and verify your favorite domain at a registrar before buying.
Check Domain Availability