---
title: "Domain Name Availability Checker | Social Influence Builder"
description: "Check domain name availability on .ca, .com and 8 more extensions in under 30 seconds, for free, with no sign-up and no registration required."
canonical: "https://socialinfluencebuilder.com/en/tools/domain-checker/"
lastmod: "2026-09-19T04:40:33+00:00"
lang: "en-CA"
format: "markdown"
---
HTML version: <https://socialinfluencebuilder.com/en/tools/domain-checker/>

# Domain Name Availability Checker

Enter the name you want, and this tool checks availability on .ca, .com, .net, .org, .io, .co, .ai, .app, .dev and .quebec, pulled from public RDAP registry data. You get a clear result, available, taken or unknown per extension, and up to 6 suggested variants on .ca and .com, in under 30 seconds, no sign-up.

## How to use this tool

[Domain Name Availability Checker](https://socialinfluencebuilder.com/blogue/llms-txt-markdown-site-web/)

## What we analyse

### Availability by extension

- Status for .ca, .com, .net and .org
- Status for .io, .co and .ai
- Status for .app and .dev
- Status for .quebec

### Suggested variants

- Up to 6 variants on .ca
- Matching variants on .com
- Short names that are easy to spell
- No suggestion already taken per RDAP

### Canadian requirements

- Canadian presence required for .ca (CIRA)
- No presence requirement for .com, .net and .org
- No presence requirement for .io, .co, .ai, .app and .dev
- .quebec as a regional extension

### Naming practices

- Short and easy to remember
- Reads clearly in both French and English
- Avoid hyphens and numbers
- Consistent with your legal business name

## Frequently asked questions

### What exactly does this tool check?

It queries the public RDAP registries for .ca, .com, .net, .org, .io, .co, .ai, .app, .dev and .quebec for the name you enter. Each extension comes back as available, taken or unknown if the registry does not respond. You also get up to 6 suggested variants on .ca and .com.

### Can I register my domain here?

No. This tool only checks availability, it does not register or sell domain names and does not recommend a specific registrar. Once you pick a name, you register it yourself with the registrar of your choice, using your own registrant details.

### What does CIRA require for a .ca domain?

CIRA, the .ca registry, requires the registrant to meet its Canadian presence requirements at registration. This tool only checks whether the name is free, it does not verify eligibility, so confirm your Canadian presence with the registry or an accredited registrar before you register.

### Why consider .quebec for a local business?

The .quebec extension clearly signals a business or organization tied to Quebec, which can reinforce local roots for a bilingual Quebec audience. It is usually registered alongside a .ca or .com, not used on its own as the business's only active domain.