Domain name checker
Type the name you want, pick the extensions, and see which ones are free in seconds.
Source: official registry data over RDAP, the ICANN-required lookup protocolLast reviewed: October 12, 2026
The short answer
Type a domain name and the tool asks each extension’s registry directly. If the registry has a record, the name is taken; if it has none, the name is almost always free to register. It checks up to 10 extensions at once and links to register a free name or look up the owner of a taken one.
How it is calculated
Every extension has one official registry that knows whether a name is registered. Your browser asks it over RDAP, the protocol that replaced WHOIS for generic extensions.
A record found means taken. No record means available in almost every case. Any other answer shows as “Couldn’t check” instead of a guess.
Worked example
You want to open a coffee shop called Maple Coffee, so you check maplecoffee in .com, .ca and .store.
- The tool asks the .com, .ca and .store registries at the same time
- Each registry answers in a second or two: record found, or no record
- Each extension shows Available or Taken, with a Register link for the free ones
You know which extensions are still open before you print a logo or claim social handles.
Quick reference table
| Extension | Good for |
|---|---|
| .com | Any business, the default people type |
| .ca | Canadian businesses |
| .net | Tech and services |
| .org | Nonprofits and communities |
| .ai | AI products |
| .app | Apps |
| .dev | Developers |
| .store | Online stores |
| .online | Any online project |
| .xyz | New projects on a budget |
Special cases and common mistakes
- Available doesn’t always mean the standard price. Some short or common names are sold as premium domains; you see the price at checkout.
- Not covered: .io, .co, .me and .shop, whose registries don’t offer this lookup to browsers, and .us.
- Nothing is stored. The lookup goes from your browser straight to the registry, not through Toolida’s servers.
Frequently asked questions
How do I check if a domain name is available?
Type the name, pick the extensions, and press Check. Available means the registry has no record of it, so you can usually register it right away. Taken means someone already owns it.
Will checking a domain let someone register it before me?
No. The lookup goes to the official registry, not to a domain reseller, and we don’t store the names you type.
What if my .com is taken?
Try another extension such as .store or .online, add a short word, or use the business name generator to find close names that are still free.
Sources
- ICANN: RDAP and the end of required WHOIS for gTLDs (Jan 28, 2025) (Last reviewed: October 12, 2026)
- IANA: RDAP servers for each extension (Last reviewed: October 12, 2026)