Help & Docs
Guides and reference for checking name and social handle availability with Coiner26.
How availability checking works
What a live check does, what cached/unknown results mean, and how often data refreshes.
Domain name TLDs
Naming limitations and availability behavior for tracked TLDs: .com, .dev, .io, .app, .ai, .tech, .co, .shop, .store, .org, .me, .xyz.
How search rules work
Rule categories and seed → result examples: Social Handle, Character Substitutions, Word Variations, Friendly Prefixes, Descriptor Prefixes, Brandable Suffixes, Compound Suffixes.
Platforms
X (Twitter)
Check if your handle is still free on X, since hundreds of millions of people have already had the same idea.
YouTube
Check if your handle's still free on YouTube, the video network where the @handle is now the thing people actually search for, not the channel name.
TikTok
Check if your handle's still free on TikTok, where you get one shot at a username and then a 30-day cooldown before you're allowed to admit you got it wrong.
Instagram
Check if your handle's still free on Instagram, where 3 billion people have already had a shot at the same 30 characters.
GitHub
Check if your handle is free on GitHub, the developer platform where your username becomes part of every clone URL you'll ever paste into a README.
LinkedIn
Check if your name's still free on LinkedIn, the professional network built around your actual name rather than a handle you get to invent.
Facebook
Check if your username is free on Facebook, where a five-character minimum quietly rules out anything shorter than Mark Zuckerberg's own handle.
Reddit
Check if your username is free on Reddit, the one major platform that never gave anyone a rename button.
Bluesky
Check if your handle's still free on Bluesky, the decentralized network where your username is technically a domain name.
Snapchat
Check if your handle's still free on Snapchat, which will happily forgive a typo but only lets you fix your username once a year.