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Domain Research Guides

Practical domain research tools for founders: learn cross-TLD checks, public registration records and Ahrefs DR, then follow a clear research workflow.

Workflows for Cross-TLD, Registration and DR Research

How to Check Domain Availability

Learn how to check domain availability, compare public registration records across extensions, and confirm eligibility and current terms with a registrar.

Domain basics · 7 min read

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.com vs .io vs .ai: Choosing a Domain Extension

Compare .com vs .io vs .ai for your product: review audience fit, same-name websites, registration terms and ongoing costs before choosing an extension.

Extension guide · 7 min read

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How to Choose a Domain Name

Learn how to choose a domain name: compare brandable ideas, research matching names across extensions, test spelling, and verify registration conditions.

Naming · 7 min read

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How to Check Multiple Domain Extensions at Once

Check one name across selected domain extensions, compare registration records and available DR, then review websites to build a useful research shortlist.

Cross-TLD research · 7 min read

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How to Check Domain Rating in Bulk

Learn to check Ahrefs Domain Rating in bulk, compare a relevant domain list, handle missing scores, and distinguish DR from traffic and Moz Domain Authority.

Domain data and DR · 7 min read

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Choose a Research Task

These domain research tools for founders connect practical questions to a useful next action. Start with the cross-extension guide when one name appears on several endings. Use the registration guide to distinguish a returned record from a purchase decision. The DR walkthrough explains how to compare backlink strength without turning the score into a traffic claim.

For naming decisions, compare .com, .io and .ai or work through the name-selection checklist. Each guide links the relevant tool and source material. Follow the methodology when observations disagree, and keep website relevance separate from registration information.

  • Cross-extension research: compare the same name under selected endings and review the websites yourself.
  • Registration data and DR: understand returned records, missing values and backlink-strength comparisons.
  • Naming and extension choice: shortlist clear spellings and check registration conditions before committing.
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