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About Domainr
What is Domainr?
Domainr is a domain name search tool and API that lets you check the availability of domain names across every TLD (top-level domain) in milliseconds. It is powered by Fastly's edge cloud platform and is the only ICANN-accredited domain status API provider, giving it direct, privileged access to registry data.
What problem does it solve?
Finding a perfect domain name can be frustrating, especially when the .com you want is already taken. Domainr solves this by offering instant, per-keystroke search and intelligent, context-aware suggestions that surface relevant TLDs—helping users brainstorm alternative names. For businesses, it eliminates false positives in domain availability checks, ensuring customers don't waste time on domains that aren't actually available.
Who is it for?
Domainr is ideal for domain registrars, hosting providers, website builders, and security teams. It's also useful for entrepreneurs and developers who want a fast, reliable way to find and secure domain names. If you're a security provider managing software supply chains, you can use the API to monitor domain status changes and uncover at-risk domains.
Real use cases
Use Domainr to add domain search to your own product—like a website builder or email marketing platform—letting users check availability in real time. Developers can use the API to filter by extension, registrar, location, or language, with full IDNA and Unicode support. The lightweight, customizable API can be integrated with minimal code, making it a powerful tool for any SaaS platform that needs domain intelligence.
Key features
- Instant Per-Keystroke Search — Get domain availability suggestions as you type, making the search feel like a conversation.
- ICANN-Accredited Status API — Direct access to registry data means accurate, real-time availability with no false positives.
- Context-Aware TLD Suggestions — Domainr surfaces relevant top-level domains, helping users find creative alternatives when the .com is taken.
- Premium and Aftermarket Detection — Know instantly if a domain is premium-priced or for sale in major aftermarkets.
- Filter by Extension, Registrar, Location, or Language — Highly customizable API with full IDNA and Unicode support.
- Drop-in Tag with Little to No Code — Supercharge your existing domain search with an easy-to-use integration.
SaaSpartout Score
7.9
/10
Editorial score from our review methodology — not user ratings.
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Domainr Pricing
Domainr pricing: Free. Billing model: Free.
For comparison: the median starting price in Developer Tools is $19.99/month, measured across 301 tools we track. See the full SaaS Pricing Index →
Free Plan
Domainr is free to use for basic domain search on its website. For API access, pricing is based on Fastly's services; you need a Fastly API token and pay for actual usage. Contact Fastly for detailed pricing tiers.
Note: Domainr offers no free trial for the API itself, but the web search tool is free to all users.
Frequently asked questions
Is Domainr free to use?
Yes, Domainr's web-based domain search tool is completely free to use. For the API, you need a Fastly account and pay for usage, but there is no upfront cost.
How much does Domainr cost?
Domainr's basic search on the website is free. The API is part of Fastly's platform with usage-based pricing—contact Fastly for exact rates.
Who is Domainr best for?
Domainr is best for developers, SaaS companies, and security professionals who need fast, reliable domain availability checks. It's also great for entrepreneurs and small businesses looking for creative domain names.
What are the top Domainr alternatives?
Popular alternatives include Namecheap, GoDaddy, and Name.com for domain search and registration. API-focused alternatives include NameAPI and WhoisXMLAPI.
Does Domainr work with every TLD?
Yes, Domainr supports all TLDs, including new gTLDs, and provides accurate availability data through its ICANN-accredited status API.
