# Onymu

> A naming intelligence platform: check one name against 1,400 domain extensions and the major social platforms at once, or turn a single word into brandable alternatives, then see which of them are still free.

Availability data is refreshed daily, so treat any result here as
accurate to within a day and confirm with a registrar before paying for a name. Prices in
the TLD directory are indicative retail ranges, not live quotes.

Operated by Utios (Bratislava, Slovakia, https://utios.com). Questions: info@onymu.com.

Content on this site may be read and cited. Please attribute as:
Source: Onymu (https://onymu.com).

Crawl rules for account pages, the API and the sign-in flow live in https://onymu.com/robots.txt.

## Tools

- [Domain Search](https://onymu.com/domain-search): Check a name's availability across every TLD as you type. Takes a name in the URL: /domain-search?q=example.
- [Domain Name Generator](https://onymu.com/domain-generator): Turn one word into brandable domain name variations. Takes a seed word in the URL: /domain-generator?q=example.
- [Brand Preview](https://onymu.com/preview): See a name as an app store listing, a Google result, an inbox, Instagram and more. Takes a name in the URL: /preview?q=example. Mock-ups are drawn in the browser, and nothing is…
- [Domain Explorer](https://onymu.com/explore): Every check on one domain at once: site, owner, DNS, handles and extensions. Takes a whole domain in the URL: /explore?q=example.com.
- [TLD Directory](https://onymu.com/domains): Every domain extension we scan, with pricing and registry notes.
- [Domain Appraisal](https://onymu.com/domain-appraisal): Takes a domain in the URL: /domain-appraisal?q=example.com. An estimated resale value, scored across dozens of factors.
- [Whois Lookup](https://onymu.com/whois): Registration and ownership. Takes a domain in the URL: /whois?q=example.com.
- [DNS Checker](https://onymu.com/dns): A, MX, TXT and NS records. Takes a domain in the URL: /dns?q=example.com.
- [Social Handle Check](https://onymu.com/social-handle-check): One handle, every platform. Takes a name in the URL: /social-handle-check?q=example.
- [Related Words](https://onymu.com/related-words): Synonyms, opposites and more. Takes a word in the URL: /related-words?q=orbit. Synonyms, opposites, narrower and broader words, split by part of speech.

## For AI clients

- [MCP Server](https://onymu.com/mcp): Use domain search inside Claude and other MCP clients.
- [MCP Documentation](https://onymu.com/mcp/docs): Endpoint, authentication and the tools the MCP server exposes, with request and response examples.

## Domain extensions

Long-form pages for the extensions people ask about most. All 1,400 are searchable.

- [.com](https://onymu.com/domains/com): Why .com remains the global standard for brands, businesses and online credibility.
- [.io](https://onymu.com/domains/io): Why .io is the extension startups, developers and tech companies reach for first.
- [.net](https://onymu.com/domains/net): Why .net remains a trusted choice for networks, infrastructure and technology businesses.
- [.xyz](https://onymu.com/domains/xyz): How .xyz became the go-to extension for startups, Web3 projects and next-generation brands.
- [.top](https://onymu.com/domains/top): What .top costs, how fast it is growing, and how its registry handles governance and abuse.
- [.site](https://onymu.com/domains/site): How .site works, what it costs, and when it is a practical alternative to .com.
- [.tech](https://onymu.com/domains/tech): An instant technology-first brand signal for startups, products and developer projects.
- [.app](https://onymu.com/domains/app): A secure-by-default extension for apps and software, with HTTPS enforced from day one.
- [.store](https://onymu.com/domains/store): An instant e-commerce identity for shops, merch drops and online retail.
- [.shop](https://onymu.com/domains/shop): A commerce-first extension that signals buying intent and works in any market.
- [.ai](https://onymu.com/domains/ai): An AI-forward extension, globally recognised and treated as generic in Google Search.
- [.club](https://onymu.com/domains/club): Built for communities, memberships and subscription brands, with the sales to prove it.
- [.org](https://onymu.com/domains/org): The extension non-profits, open-source projects and public institutions have trusted since 1985.
- [.info](https://onymu.com/domains/info): The first extension ICANN added after the original six, open to anyone since 2001.
- [.online](https://onymu.com/domains/online): A broad, unrestricted extension that reads as plain English in any sector.
- [.lol](https://onymu.com/domains/lol): Built for comedy, memes and anything that does not take itself seriously.
- [.vip](https://onymu.com/domains/vip): Built for membership tiers, loyalty portals and anything sold as exclusive.
- [.cc](https://onymu.com/domains/cc): A two-letter extension run by Verisign and open worldwide since 1997.
- [.co](https://onymu.com/domains/co): Colombia's extension, sold worldwide since 2010 and adopted by startups everywhere.
- [.pro](https://onymu.com/domains/pro): Built for licensed professionals in 2004 and open to everyone since 2015.
- [.asia](https://onymu.com/domains/asia): The regional extension for the Asia-Pacific, operated by a non-profit since 2008.
- [.digital](https://onymu.com/domains/digital): A descriptive extension for agencies, studios and transformation work.
- [.live](https://onymu.com/domains/live): Built for streaming, events and anything happening in real time.
- [.click](https://onymu.com/domains/click): A call-to-action extension built for short links and campaign pages.
- [.sbs](https://onymu.com/domains/sbs): A three-letter extension relaunched in 2021 as "side by side".
- [.cfd](https://onymu.com/domains/cfd): A financial string from 2015, relaunched in 2021 for clothing and fashion.
- [.icu](https://onymu.com/domains/icu): ShortDot's flagship three-letter extension, launched in 2018 as "I see you".
- [.cyou](https://onymu.com/domains/cyou): A four-letter extension read as "see you", launched in 2020.

## Blog

Guides and research on choosing, registering and using domain names.

- [Meta Took @muse From the Band Muse. Who Owns Your Brand's Handle?](https://onymu.com/blog/trademark-social-media-handle): The band Muse is now @museband and Meta's new AI agent has @muse. What the platforms' own terms say about who owns a handle, and how taken your name already is.
- [Domain Generator Is Now Onymu: Why We Gave Up a Descriptive Name](https://onymu.com/blog/domain-generator-is-now-onymu): We renamed Domain Generator to Onymu. A descriptive name kept the product stuck at one feature here is the data on both names and what happens to domaingenerator.co.
- [Lovable Bought Lovable.com. What Did a $13.3bn Startup Pay?](https://onymu.com/blog/what-lovable-paid-for-lovable-com-domain): Lovable finally owns its .com. We read the registrar record, bracketed the handover against the Internet Archive, and priced it against public sales.
- [Domain Search MCP Server: Check 1,000+ TLDs From Your Assistant](https://onymu.com/blog/domain-search-mcp-server): One call covers 1,000+ extensions, with answers from a registry list rebuilt daily. What the Onymu MCP server does, how it works, and how to connect a client.
- [Brandable vs Keyword Domains: SEO & Trust Compared](https://onymu.com/blog/brandable-vs-keyword-domains-seo-trust-compared): Do keywords in domain names help SEO? Compare brandable vs keyword domains for SEO impact, trust, clicks, scalability, and rebrand risk.
- [301 Redirects for Domain Changes: The Complete SEO Guide](https://onymu.com/blog/301-redirects-for-domain-changes-the-complete-seo-guide): A complete SEO-safe guide to using 301 redirects when changing domains, with step-by-step workflows, mistakes to avoid, and migration best practices.
- [Brand Mentions vs Backlinks for AI Search Visibility Drivers](https://onymu.com/blog/brand-mentions-vs-backlinks-for-ai-search-visibility-drivers): Do brand mentions matter more than backlinks in AI search? Learn how AI engines evaluate authority and what actually drives visibility in 2026.
- [How AI Search Surfaces Brands: Signals, Entities, and Intent](https://onymu.com/blog/how-ai-search-surfaces-brands): Learn how AI search surfaces brands using intent, entities, topical authority, and structured data, and how to optimize for AI discovery beyond keywords.
- [True 5-Year Cost of Domain Ownership](https://onymu.com/blog/true-5-year-cost-of-domain-ownership): A complete breakdown of the true 5-year cost of domain ownership, including renewals, hidden fees, opportunity cost, and domain economics.
- [How to Recover a Stolen Domain (Step-by-Step Guide)](https://onymu.com/blog/how-to-recover-a-stolen-domain-step-by-step-guide): Learn how to recover a stolen domain step by step, understand domain hijacking risks, and prevent future domain theft with proven security strategies.
- [Do Hyphens in Domain Names Hurt SEO?](https://onymu.com/blog/hyphens-in-domain-seo): Do hyphens in domain names hurt SEO? Learn Google’s stance, real data, branding trade-offs, and when hyphenated domains still make sense.
- [Do Keywords in Domain Name Help SEO? Google Guidance (2026)](https://onymu.com/blog/do-keywords-in-domain-name-help-seo-google-guidance-2026): Do keywords in domain names help SEO? Learn Google’s official guidance, myths vs facts, and what actually impacts rankings in 2026.
- [Best AI Domain Extensions: Premium .ai Alternatives](https://onymu.com/blog/best-ai-domain-extensions-premium-ai-alternatives): Compare premium .ai alternatives for AI startups, including .io, .app, .dev, .tech, .xyz, .cloud, .software, and .systems, with a step-by-step naming workflow.
- [WHOIS Privacy Explained: What It Protects and What Doesn’t](https://onymu.com/blog/whois-privacy-explained): A complete, practical guide to WHOIS privacy covering spam, doxxing, GDPR nuances, and when paying for domain privacy is worth it.
- [Domain Security Checklist: DNSSEC, 2FA, Registrar Lock](https://onymu.com/blog/domain-security-checklist): A practical domain security checklist for companies covering DNSSEC, registrar 2FA, locks, and anti-hijack best practices.
- [Domain Pricing Explained: Why Same Domain Costs Different](https://onymu.com/blog/domain-pricing-why-same-domain-costs-different): Domain pricing varies by registrar because registries set wholesale fees while registrars set retail pricing with promos, renewals, add-ons, and premium tiers.
- [Domain Transfer Guide 2026: How to Move a Domain](https://onymu.com/blog/domain-transfer-guide): A complete 2026 guide to transferring domains without downtime. Learn how domain transfers really work, avoid DNS mistakes, and why Spaceship is the safest choice.
- [Cheapest TLDs in 2026: Low-Cost Domain Extensions Guide](https://onymu.com/blog/cheapest-tlds-in-2026-low-cost-domain-extensions-guide): Find the cheapest TLDs in 2026, compare low-cost registrars, avoid renewal traps, and use Onymu to secure brandable domains fast.
- [Why Professional Websites Are Overrated in 2026](https://onymu.com/blog/professional-websites-overrated): Why professional-looking websites often underperform and what actually drives trust, conversions, SEO, and AI visibility in 2026.
- [How to Choose an SEO Domain Name (That Helps You Rank)](https://onymu.com/blog/how-to-choose-an-seo-domain-name): Learn how to choose an SEO-friendly domain name in 2026 using modern SEO principles, branding strategy, and a practical step-by-step workflow.
- [Choosing an SEO-Friendly Domain Name in 2026](https://onymu.com/blog/choosing-seo-friendly-domain-name): Learn how to choose an SEO-friendly domain name in 2026, including branding, TLDs, keywords, and long-term SEO strategy.
- [How to Avoid Domain Sniping with Private Search](https://onymu.com/blog/how-to-avoid-domain-sniping-with-private-search): Private domain search helps prevent domain sniping by limiting exposure during early naming. By avoiding public lookups and acting quickly.
- [Entity SEO for Startups: How to Win AI Search & Discovery](https://onymu.com/blog/entity-seo-for-startups-how-to-win-ai-search-discovery): Entity SEO helps startups get discovered by AI search engines by optimizing for entities, improving visibility in AI answers and knowledge graphs.
- [SEO Benefits of Exact-Match Domains: Do EMDs Still Work?](https://onymu.com/blog/seo-benefits-of-exact-match-domains): Exact-match domains don’t boost rankings directly in 2026, but they can improve CTR, relevance perception, trust, and topical authority when used strategically.
- [Why Clear Messaging Outperforms Design on Startup Websites](https://onymu.com/blog/why-clear-messaging-outperforms-design-on-startup-websites): Why clear messaging consistently outperforms creative design on startup websites, backed by UX research, CRO data, and real-world case studies.
- [The Next Big Shift in How Startups Get Discovered Online](https://onymu.com/blog/startup-discovery-ai): AI search is reshaping how startups get discovered, shifting visibility from rankings to being cited and trusted by AI systems.
- [Are We Running Out of Good Domain Names in 2026?](https://onymu.com/blog/are-we-running-out-of-good-domain-names): Are good domain names running out? Learn why .com feels scarce, which TLD categories still work, and how to find brandable domains in 2026.
- [Why Funny Domain Names Are Easy to Remember](https://onymu.com/blog/why-funny-domain-names-are-easy-to-remember): Funny domain names are memorable because humor boosts attention, emotion, and repetition. Learn the science, risks, and a workflow to pick one that works.
- [Do You Need a .com Domain to Be Trusted in 2026?](https://onymu.com/blog/do-you-need-com-domain): A .com domain is not required for trust in 2026. Learn when it helps, when it doesn’t, and how non-.com brands build credibility.
- [Brand Name vs Domain Name: What Comes First for a Startup?](https://onymu.com/blog/brand-vs-domain-name-startup): Should startups choose a brand name or domain name first? Learn why brand-first wins and when non-.com domains make sense.
- [Why the Best Startup Names Sound Weird at First](https://onymu.com/blog/why-best-startup-names-sound-weird-at-first): Why startup names often sound weird at first, how that weirdness becomes memorable, and how to generate brandable, available domains with AI.
- [Biggest Website Design Trends Shaping Startups in 2026](https://onymu.com/blog/website-design-trends-shaping-startups-in-2026): Top 2026 website design trends for startups: AI UX, INP-first performance, WCAG 2.2 accessibility, mobile-first IA, and brand differentiation.
- [Website Redesign vs Product Improvement: What Drives Growth](https://onymu.com/blog/website-redesign-vs-product-improvement): A practical comparison of website redesign vs product improvement, including when each works, which metrics they move, and how to choose the right lever.
- [The Real Reason .io & .ai Domains Took Over Startups in 2026](https://onymu.com/blog/io-ai-domains-took-over-startups-in-2026): Why .io and .ai domains took over startups, how they signal tech focus and how founders actually find an available domain in under 60 seconds.
- [Why Most Startup Websites Are Built for Investors, Not Users](https://onymu.com/blog/most-startup-websites-are-built-for-investors): Most startup websites are built to impress investors instead of helping users. Learn why this hurts conversions and how to fix it with user-first design.
- [Do TLDs Matter for SEO in 2026? Do You Have to Use .com?](https://onymu.com/blog/do-tlds-matter-for-seo-2026): A practical guide to how domain extensions affect SEO in 2026. Learn when .com matters, how other TLDs perform, and how to choose without hurting rankings.
- [Trademark Risk for Domain Names Guide](https://onymu.com/blog/trademark-risk-for-domain-names-guide): Learn how to reduce trademark risk when choosing a domain name and create a brandable, defensible domain safely without intellectual property damages.
- [Changing Domain Name: SEO Impact & Protect Rankings](https://onymu.com/blog/changing-domain-name-seo-impact-protect-rankings): Learn how changing a domain name impacts SEO, rankings, and traffic, and follow a proven domain migration strategy to protect authority.
- [SPF, DKIM & DMARC Explained for Domains](https://onymu.com/blog/spf-dkim-dmarc-explained-for-domains): SPF, DKIM, and DMARC explained in plain English with step-by-step setup, common mistakes, and a domain security checklist.
- [How Many Domain Names Should I Buy](https://onymu.com/blog/how-many-domains-should-i-buy): TL;DR-first guide to how many domain names startups should buy and which defensive registrations protect brand trust, email, and legal position.

## About this site

- [About](https://onymu.com/about): Who builds Onymu, where the availability data comes from and how it is checked.
- [Contact](https://onymu.com/contact): Support and press enquiries, or email info@onymu.com.
- [Privacy](https://onymu.com/privacy): What is stored, what is kept in the browser and how to delete an account.
- [Terms](https://onymu.com/terms): Terms of service, including the limits on automated use.

## Optional

- [Sitemap](https://onymu.com/sitemap.xml): Every public URL on the site, including all blog posts and extension pages.
- [Blog RSS feed](https://onymu.com/blog/feed.xml): New posts as they publish.
- [robots.txt](https://onymu.com/robots.txt): Crawl rules for search engines and bots.