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Domain Name Availability Checker

Search any name and instantly check domain availability across 104 extensions — .com, .io, .ai, .dev and more.

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Check domain name availability across 100+ extensions

This domain name checker searches 100+ extensions in groups, like Namecheap's own search: popular (.com, .net, .org, .co, .io, .ai), tech, creators, business, community, short & fun, and country domains. Each group loads as soon as it's ready, so you see the important results first.

Every result is checked live against the official registry and double-checked with DNS, so a domain that's already registered won't show as available. Available domains link straight to Namecheap with the name pre-filled.

Found the domain? Check the same name on Instagram, TikTok, YouTube and other platforms so your brand matches everywhere.

Domain checker FAQ

Quick answers to the most common questions.

Over 100 extensions in nine groups: popular (.com .net .org .co .io .ai), tech & startups (.dev .app .tech .cloud .pro and more), creators & media (.me .tv .live .studio .design .blog .art), business & shops (.shop .store .online .biz .agency), professional (.consulting .software .marketing .finance .health), community & lifestyle (.club .love .fit .chat), interests & niches (.music .fashion .travel .beauty .food .coffee .photography .pet), short & fun (.xyz .gg .fun .space .ninja .wiki .lol) and country (.us .uk .ca .de .fr .eu .in). All are checked in real time against the official registries and DNS, and all can be registered at Namecheap.

Yes — completely free with no account required. Search any name and see availability across 100+ domain extensions instantly.

Checks use RDAP (Registration Data Access Protocol) queries directly against the authoritative registry for each TLD, giving you accurate real-time data. Results are best-effort — always confirm before purchasing.

Each available domain has a Claim button that links directly to Namecheap's registration page pre-filled with that domain, so you can register in seconds.

A handful of registries throttle RDAP queries or return ambiguous responses. 'Unknown' means the check couldn't confirm either way — always verify directly with a registrar before assuming it's available.

.io is popular with tech startups, .ai with AI/ML projects, and .dev is a Google-operated TLD aimed at developers — it requires HTTPS out of the box. All three are premium but widely recognised in the tech community.

The domain checker is optimised for a single deep search across 100+ TLDs. For comparing multiple candidate names across key platforms and .com, use the Bulk checker — it gives you a side-by-side comparison table.

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