1 to 4-Character Short Domains still open to register across 47 TLDs.

Browse a single high-growth extension like .ai or .io, or search across all 47 extensions at once. Start by selecting Pure Alpha, then use a free account to apply a pronounceable pattern like CVCV and sort by Most TLDs. When you spot a name you want, click Register to verify live pricing at the registrar. The short video below walks through the workflow.

Clicking play loads the video from YouTube.

Unregistered short domains are 1 to 4-character domain names that are currently available for hand-registration without going through auctions or brokers.

Because 4-letter combinations alone generate 456,976 possibilities per extension, most of them unpronounceable, we rely on four baseline heuristics to isolate valuable short names:

• The CVCV Pronounceability Rule: Four-letter names following a Consonant-Vowel-Consonant-Vowel (CVCV) or VCVC structure read like natural words (such as "fino" or "vela"). Filtering by pattern immediately strips away 95% of unpronounceable letter clusters.
• Cross-TLD Proof of Demand: An available 3-letter or 4-letter name in .ai or .dev that is already registered across 40+ other extensions carries proven market validation, often matching an existing acronym, product name, or dictionary word.
• Letter Quality & Exclusions: Removing low-frequency letters (such as J, Q, U, V, X, Z) leaves behind high-liquidity "premium letter" combinations that command stronger resale and branding appeal.
• Standard vs. Registry Premium Pricing: Not all available short domains cost the same. Some registries (like .ai or .io) charge flat standard rates for most available 3L/4L names, while others (like .app, .dev, or .bot) apply tiered registry-premium pricing to short labels. Always check both first-year and renewal rates at checkout.

We monitor 1 to 4-character availability across a curated mix of tech-focused ccTLDs, legacy gTLDs, and commercial new gTLDs:

• Tech & Startup Favorites: .ai, .io, .co, .app, .dev, .bot, .tech, .gg, .sh, .so, .im, .me
• Commercial & Brandable gTLDs: .biz, .info, .pro, .xyz, .club, .shop, .store, .site, .online, .studio, .design, .digital, .global, .work, .link, .live, .life, .plus, .one, .space, .fun, .games, .bet, .win, .lol, .best, .homes
• Short Regional Extensions: .at, .be, .bi, .la, .lat, .li, .md, .si

Everyone can search by keyword, browse by extension, and filter by character composition (Pure Alpha, Pure Number, or Mixed). With a free account, you unlock precision brand-hunting filters:

• Phonetic Patterns: Isolate 3-Letter, CVCV, VCVC, or CCVV structures.
• Letter Exclusion: Exclude specific characters you do not want in your domain name.
• Cross-TLD Threshold & Sorting: Filter by minimum TLD count and sort by Most TLDs to see the most established prefixes first.
• Keyword Position: Pin your target letters to the start, middle, or end of the short name.

Yes. Clicking Register takes you straight to our registrar partners to confirm current availability and complete your purchase. Because desirable short names get snapped up quickly, availability can change between scans.

To track specific targets over time, combine this tool with the rest of our Monitor suite: use Premium Domains Monitor to follow transfers, drops and nameserver updates across 4M+ premium .com domains, or set up free email alerts with Domain Monitor and Keyword Monitor.