Instant Domain Search

Q: Is Instant Domain Search free?

Yes. Searching and the research tools are free. The site earns referral fees when you register through its registrar links.

Q: How many extensions does it check?

More than 800. Results update as you type and include prices from several registrars.

Q: Can I buy a domain on Instant Domain Search?

You buy through a registrar it links to. instant.ai, which builds the site, says it is an ICANN-accredited registrar, and the site says prices match going to the registrar directly.

Q: How much does a domain cost?

About $8 to $15 a year for .com, .net or .org. Its FAQ puts .io at $25 to $50 and .ai at $50 to $90 a year.

Q: Who runs Instant Domain Search?

instant.ai. The site has offered free domain search since 2005. More tools like it are on our Instant Domain Search alternatives page.

Free domain search that checks 800+ extensions as you type.

FreeDomain searchSince 2005

Visit instantdomainsearch.com ↗Last verified: 5 Nov 2026

Fact-checked

Refael EliyahuMarketing, Startup StashEconomics-trained and numbers-first. He owns content, SEO, and distribution here, and every tools page goes through him before the Fact-checked mark goes live.

FreeTo search

800+Extensions checked

2005Free search since

instant.aiBuilt by

The short version

What is Instant Domain Search?

Instant Domain Search is a free tool that shows whether a domain name is taken while you type, across more than 800 extensions. It also suggests names with AI and lists domains for sale on marketplaces such as Afternic, Sedo and Atom.

It has offered free domain search since 2005 and is built by instant.ai, which describes itself as an ICANN-accredited registrar. Results show prices from several registrars. The site earns referral fees when you register through its links, and says the price is the same as going direct. Extra tools include bulk search with CSV import, WHOIS lookup, trademark search on USPTO data, expired domains and appraisals. A plugin also lets coding agents such as Claude Code and Cursor check names through an MCP server.

Bottom line: It is one of the quickest ways to see if a name is free. Search and compare here, then confirm the renewal price at the registrar before you buy.

What it does

Key features

Search as you type

Availability across 800+ extensions updates with each keystroke, with prices from several registrars.

AI name generator

Suggests available names from your keywords, plus a separate business name generator.

Aftermarket listings

Shows taken names that are for sale on marketplaces such as Afternic, Sedo and Atom.

Research tools

Bulk search with CSV import and export, WHOIS, USPTO trademark search, brandability scores and social handle checks.

What it costs

Instant Domain Search pricing (2026)

Plan	Price	What you get
Search and tools	Free	Domain search, generator, bulk search, WHOIS and research tools.
Coding agent plugin	Free	Checks names from coding agents. No account or API key needed.
Registering a domain	Set by registrar	Its FAQ gives typical yearly costs: .com, .net and .org about $8 to $15, .io $25 to $50, .ai $50 to $90.

Instant Domain Search earns referral fees from registrars. Typical costs from its FAQ, in US dollars a year, checked 5 Nov 2026.

Honest fit

Who it's for, who it isn't

Pick Instant Domain Search if

You are brainstorming names and want instant results
You want to check many extensions at once
You have a long list of names to check in bulk
You want to check names from a coding agent

Look elsewhere if

You want a full renewal and transfer price comparison
You prefer tools that do not earn from referral links
You need help with brand strategy, not only name ideas

What people ask

Instant Domain Search FAQ

Is Instant Domain Search free?

Yes. Searching and the research tools are free. The site earns referral fees when you register through its registrar links.

How many extensions does it check?

More than 800. Results update as you type and include prices from several registrars.

Can I buy a domain on Instant Domain Search?

You buy through a registrar it links to. instant.ai, which builds the site, says it is an ICANN-accredited registrar, and the site says prices match going to the registrar directly.

How much does a domain cost?

About $8 to $15 a year for .com, .net or .org. Its FAQ puts .io at $25 to $50 and .ai at $50 to $90 a year.

Who runs Instant Domain Search?

instant.ai. The site has offered free domain search since 2005. More tools like it are on our Instant Domain Search alternatives page.

Keep comparing

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