Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience real numbers from our own analytics — open to see them
–Visitors
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · counted by iTechGuides's own first-party analytics, bots removed, every figure rounded down · how we count

Fastly Domain Research API

Freemium#6 of 34 in Domain Search Tools

Fastly Domain Research API: A focused API for precise domain availability, suggestions, and aftermarket signals. Ranked #6 of 34 in Domain Search Tools by our editors (7.1/10); pricing: Free plan; best for developers needing precise availability APIs.

7.1/10Editor score
Visit Fastly
Fastly Domain Research API7.1 Visit Fastly

At a glance

  • Editor score
    7.1 / 10
  • Pricing
    Free plan
  • Best for
    Developers needing precise availability APIs
  • Free plan
    Yes
  • Founded
    2011 · San Francisco, CA, United States
  • Facts checked
    20 Sep 2026

  • Where it wins

    • Registry-level availability checks for precise status results
    • Algorithmic suggestions with context-aware refinements
    • JSON responses with premium and aftermarket offer data

  • Where it doesn't

    • API-only access offers no standalone search interface
    • Usage is split across separate Suggest and Status meters
    • Estimated checks are less precise than registry-level checks

Our verdict on Fastly Domain Research API

Fastly Domain Research API is a programmatic domain discovery and availability service for developers building website builders, hosting platforms, CMS and ecommerce products, registrars, or branding workflows. Its Suggest method generates algorithmic domain ideas, while Status methods return either registry-level availability or estimated DNS and aftermarket availability. JSON responses make the product suited to applications that need to present domain choices inside their own interfaces rather than through a separate research workspace.

Pricing is usage-based and divided by capability. Status-Precise has a free tier, followed by Tier 1 at $0.001 per request, Tier 2 at $0.0008, Tier 3 at $0.0006, and Tier 4 at $0.0005 per request, billed monthly. Status-Estimated also has a free tier, with Tier 1 at $0.0005 and Tier 2 at $0.0004 per request, billed monthly. The published plans show registry checks on every Status-Precise tier and DNS and aftermarket checks on the Status-Estimated tiers. Suggest requests have a separate meter, so teams should map each workflow to the appropriate endpoint before forecasting usage.

The API’s strongest fit is a product that needs more than a simple available-or-taken result. It can detect premium-priced and aftermarket-listed domains, return aftermarket offer data, apply context-aware refinements, stemming, and Unicode folding, and normalize internationalized domain names while restricting searches to supported zones. That breadth helps platforms make domain discovery more informative, but the API-only model puts interface, onboarding, and user experience work on the integrating team. Choose it when precise registry checks and structured responses are central to the product; choose an alternative when a ready-made domain search application or a single simpler meter matters more.

Fastly Domain Research API pricing

Plans Free planFreemium A usable free plan; paid tiers unlock the limits above. Prices re-checked Sep 2026.
See plans on fastly.com

All 12 Fastly Domain Research API plans and prices →

Fastly Domain Research API fact sheet

Free planYes
Paid fromNot verified
TLD countNot verified
Bulk search limitNot verified
Domain variationsAdvanced
Bulk uploadNot verified
Export optionsNot verified
API accessYes
DeploymentCloud
SupportDocs
Built forSmall business, Mid-market, Enterprise (editorial estimate)
PricingFree plan (source)
Websitefastly.com
Facts checked20 Sep 2026

Alternatives to Fastly Domain Research API

See all Fastly Domain Research API alternatives →

Fastly Domain Research API vs the competition

Compare Fastly Domain Research API with any tool side by side →

Used Fastly Domain Research API? Be the first to review it

The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Fastly Domain Research API for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

Write a reviewTwo minutes · verified accounts only · read by an editor before it appears

Reviews come only from verified accounts. Sign in or create an account first — your e-mail is never shown.

Your rating

0 characters · at least 80, up to 3,000

Posted from your verified account. Reviews appear after an editor reads them, usually within two working days.

Featured on iTechGuides

Featured on iTechGuides — Fastly Domain Research API 7.1/10

Fastly Domain Research API is listed in our Domain Search Tools directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/fastly-domain-research-api/"><img src="https://www.itechguides.com/best/badge/fastly-domain-research-api.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Guides on domain search tools

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Last updated · How we research and update