Username Finder: Domain Check

Found the perfect name? Make sure it's yours everywhere — before someone else takes it. Username Finder checks your handle across 40 social and creator platforms with one search, and checks the matching domain across 27 extensions. One name, one search, the full picture. HANDLE CHECK — 40 PLATFORMS AT ONCE • Instagram, TikTok, YouTube, X, Facebook, Snapchat, Pinterest, Twitch, Reddit and more • Developer platforms too: GitHub, GitLab, npm, PyPI, Docker Hub • Live results as they come in: available · taken · unchecked counts while you watch • Star the platforms you care about and keep them pinned on top DOMAIN CHECK — 27 EXTENSIONS (PRO) • .com, .net, .org, .io, .app, .dev, .co, .gg, .so and more — one search covers them all • Real availability checks, not guesses: RDAP and WHOIS behind the scenes • See instantly whether the matching domain is free before you commit to a name BUILT FOR • Creators and streamers claiming a consistent handle everywhere • Founders and side-project builders naming a product or startup • Gamers grabbing a clean tag before it's gone • Anyone renaming, rebranding, or starting fresh WHY PEOPLE LIKE IT • One search does everything — no tapping through 40 sites • Fast, clean, and honest: unknown results are marked unknown, not guessed • Dark mode, 5 languages (English, Türkçe, Español, Italiano, Français) • No account, no sign-up — open the app and search GO PRO — ONE-TIME PURCHASE Pro is a single lifetime purchase, not a subscription. It unlocks the full 27-extension domain checker and removes every ad, forever. Your searches stay yours: we don't log the names you check to your identity, and there's no account to build a profile on. Grab your name before someone else does — download Username Finder and run your first search in seconds.