ServiceActive

Domain Availability Checker

Instantly check domain name availability across multiple TLD extensions including .com, .net, .org, .io, .ai, and more.

Field note

What it does

Free tool to check if a domain name is available for registration across 12+ extensions. Supports .com, .net, .org, .info, .biz, .co, .io, .ai, .dev, .app, .xyz, .tech, .store.

Capabilities

Available capabilities

Extension Details Domain Availability Check Multi-TLD Support Similar Domain Suggestions

Domain Availability Checker

What it does

Available capabilities

Tags

Ways to use it

Product features

About Top-Level Domains

Country-Code TLDs (ccTLD)

Frequently Asked Questions

Generic TLDs (gTLD)

How can I look up WHOIS for a TLD?

How many top-level domains exist?

Infrastructure TLD

Sponsored TLDs (sTLD)

Top-Level Domains

What is the difference between a gTLD and a ccTLD?

Which TLD is best for SEO?

Who manages TLDs and what is ICANN?