Instant Domain Search is a free domain availability checker that shows results while you type. It is still active as of November 2026. The FAQ says it has offered free search since 2005, covers 800+ extensions and checks each name in less than 25 milliseconds, with no search button. The site also calls itself an ICANN-accredited registrar.
Around the search box sit a generator, bulk search with CSV import, WHOIS, appraisal, a US trademark search, a reverse dictionary and a free MCP server for coding agents such as Claude Code and Cursor. The FAQ says searches are not shared with registrars or third parties, to prevent front-running. Money comes from small referral fees when you buy through its partner links, at the same price you would pay the registrar directly.
The alternatives below are for when you want something it does not do: register at cost, check thousands of names at once, or see social handles next to the domain.
Prices below are as of November 6, 2026. Our method is on How we review tools.
Quick comparison
| Tool | Best for | Price | Platforms |
|---|---|---|---|
| Domainr | One word across many endings, as you type | Free search | Web, API via Fastly |
| Namecheap Beast Mode | Up to 5,000 names in one search | Free search | Web, desktop and mobile |
| Porkbun | Searching where the renewal price stays flat | .com $11.81/yr | Web |
| Cloudflare Registrar | Registering at cost on Cloudflare DNS | .com $11.17/yr renewal | Web |
| Namecheckly | Domain and social handles in one check | Free | Web, iOS, Android |
| Lean Domain Search | A keyword turned into many .com pairs | Free search | Web |
| Namelix | AI brand names when your first pick is taken | Free (logos from $35) | Web |
Domainr
Type a word into Domainr and it fills a list of endings as you go, the closest feel to Instant Domain Search on this page. A search for "coffee" lists coffee.com, coffee.house, coffee.shop and more, each with a status.
Fastly owns Domainr, and its subsidiary Domain Research, LLC is ICANN accredited, per the about page. Like Instant, it earns a commission when you buy through it, but you can register at any registrar you like.
Best for: Seeing at a glance which endings are open for one exact word.
Pricing:
- Search is free.
- API: "Try for Free at Fastly", with no public per-request price.
Watch out for:
- There is no generator, trademark search or bulk upload. It answers one word at a time.
- The home page now promotes the Fastly Domain Research API more than the consumer search.
Official site: Domainr. Our listing: Domainr.
Namecheap Beast Mode
Instant's bulk search takes a CSV. Beast Mode takes the same idea further: up to 5,000 keywords or domains per search, or per CSV, with a price range filter and an option to exclude premium names.
Prefix and suffix lists and domain hacks expand each entry, and searches can be shared by link. Namecheap launched it in June 2019 for domain investors and startups, and the page says it works on desktop and mobile.
Best for: Checking a long spreadsheet of candidates in one pass.
Pricing:
- All Beast Mode search functions are free.
- Domain prices appear per result and at checkout.
Watch out for:
- Results and checkout stay inside Namecheap, so it is not a neutral comparison.
Official site: Namecheap Beast Mode.
Porkbun
Instant shows you who sells a name. Porkbun shows you what it will cost next year as well. Its .com is $11.81 to register, $11.81 to renew and $11.81 to transfer, for non-premium single years with ICANN fees included.
WHOIS privacy and SSL certificates are free with every domain. If you search on Instant and then register at a partner, it is worth checking the second-year price against this figure.
Best for: Buyers who will keep the domain for years and want no renewal surprise.
Pricing:
- .com: $11.81 registration, renewal and transfer, per year.
- WHOIS privacy and SSL: free.
Watch out for:
- No first-year discount on .com, so some promo registrars are cheaper for year one.
- Premium names are priced separately from the $11.81 list price.
Official site: Porkbun.
Cloudflare Registrar
For people who already run DNS on Cloudflare, Cloudflare Registrar removes the middleman entirely. It sells over 390 extensions at the price the registry and ICANN charge, with no markup.
At cost means registry increases reach you straight away. Verisign raised its wholesale fee from $10.26 to $10.97 on November 1, 2026, and as of November 2026 DomainOffer lists Cloudflare's .com renewal at $11.17.
Best for: Sites on Cloudflare that want the lowest renewal year after year.
Pricing:
- At cost, no markup.
- .com renewal: $11.17 per year (DomainOffer, November 2026).
Watch out for:
- All domains must use Cloudflare nameservers. To use another DNS host you have to move the domain to a different registrar, per the FAQ.
- Under ICANN rules a domain cannot change registrar for 60 days after registration, a transfer or a contact change, the FAQ notes.
Official site: Cloudflare Registrar.
Namecheckly
A domain is half of a launch name. Namecheckly checks the domain and the social handles together, with 26 extensions in its domain checker and 30+ social platforms in the handle search. A bulk mode takes up to 50 names.
It is free with unlimited searches and no account. It also ships name-checker apps on the App Store and Google Play, something Instant does not offer.
Best for: Checking a brand name on the web and on social networks at the same time.
Pricing:
- Free, unlimited searches, no account or card.
- Paid offers on the page are partner deals with Namecheap, Shopify and Hostinger.
Watch out for:
- Its FAQ says some sites limit access, so a handle result can be unknown or wrong.
- The site gives 30+ platforms in one place and 50+ in its demo, so the exact coverage is unclear.
Official site: Namecheckly.
Lean Domain Search
When your first choice is taken, Lean Domain Search turns one keyword into a list of available two-word .com names by pairing it with common words. Automattic owns it.
Its FAQ is candid that cached results are wrong about 1 time in 20 and that clicking a name rechecks it. Registration goes through WordPress.com, where .com suggestions are priced at $13.
Best for: A quick list of plain .com fallbacks around one word.
Pricing:
- Search is free.
- .com via WordPress.com: $13 shown in results.
Watch out for:
- It checks only .com and .blog, compared with 800+ endings on Instant Domain Search.
Official site: Lean Domain Search.
Namelix
Instant has its own generator, but it works from your keyword. Namelix invents names instead, using Brandmark.io's own language model, and learns from the names you save.
Styles in the app run from Brandable and Evocative to Alternate spelling and Real words, and each result shows availability and a logo preview. Our NameMesh alternatives cover more generators of this kind.
Best for: Getting unstuck when every keyword variation is taken.
Pricing:
- Name generation is free.
- Brandmark logo files, one-time: $35, $95 or $195.
Watch out for:
- Invented names need extra checks for pronunciation and trademarks, which Namelix does not run.
Official site: Namelix.
How to choose
| If you need | Pick |
|---|---|
| Live results for one word across many endings | Domainr |
| Thousands of names checked in one go | Namecheap Beast Mode |
| A flat .com price in year two and beyond | Porkbun |
| At-cost registration on Cloudflare DNS | Cloudflare Registrar |
| Domain plus social handles, also on a phone | Namecheckly |
| .com fallbacks built around my keyword | Lean Domain Search |
| A brand-new name when everything is taken | Namelix |
When to stay with Instant Domain Search
For most people, stay. Instant Domain Search is free, covers 800+ endings, says it does not share searches, and puts WHOIS, trademark and bulk tools one click away. The main reason to look elsewhere is buying: search on Instant, then compare the renewal price at a registrar such as Porkbun or Cloudflare before you click a partner link.
Frequently asked questions
Is Instant Domain Search free?
Yes. Searching, the generator, WHOIS and bulk search cost nothing, and there is no account. The site earns referral fees when you register through a partner, and its FAQ says the price is the same as going to the registrar directly.
Is Instant Domain Search safe to use?
Its FAQ says searches run over HTTPS and are not shared with registrars or third parties, which is meant to stop front-running, where someone registers a name you looked up. It links to a separate security policy and privacy policy for the details.
Which registrar does Instant Domain Search use?
Several. The page names GoDaddy, Namecheap, Hostinger and Dynadot as partners, and aftermarket listings come from Afternic, Sedo and Atom. It says it partners with 8+ registrars in one place and lists 20+ connected registrars in the footer.
What is faster than Instant Domain Search?
For a single name, little is. Its FAQ quotes under 25 milliseconds per check. Domainr feels similar and lists endings as you type. For speed on volume, Beast Mode checks up to 5,000 names per search. If you are comparing registrar prices rather than names, see our Domcomp alternatives.
