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Domain Knowledge

Domain Extensions Guide: .com vs .ai vs .io

The suffix you choose matters. We break down trust, pricing, and SEO impact for 2025.

N
Nametastic Team
10 min readUpdated Mar 2025

You found the perfect name, but the .com is taken. Now what?

Ten years ago, anything other than .com was considered "second tier." Today, that has changed. Startups are launching on .io, AI companies are flocking to .ai, and creators are using .me.

However, not all extensions (TLDs) are created equal. Some carry prestige, while others scream "spam."

Top 10 TLD Comparison

ExtensionCategoryTrust LevelPricingBest For
.com
Classic
High$Everything (Default choice)
.io
Tech
High$$$SaaS, Startups, Tech
.ai
Trending
Medium$$$$Artificial Intelligence
.co
Modern
Medium$$Startups, .com alternative
.net
Classic
Medium$Infrastructure, ISPs
.org
Non-profit
High$Non-profits, Communities
.app
Tech
Medium$$Mobile Apps, Web Apps
.dev
Tech
Medium$$Developers, Tools
.xyz
Generic
Low$Web3, General
.store
E-comm
Medium$$Online Shops

Does the TLD Affect SEO?

Google has officially stated that their algorithm treats all new gTLDs (generic top-level domains like .io, .ai, .agency) the same as .com.

However, there is a catch:

Human behavior affects SEO indirectly.

  • Click-Through Rate (CTR): People are more likely to click on a .com than a .xyz because they trust it more. Higher CTR boosts SEO.
  • Memorability: If someone remembers "brand.com" but types "brand.net" and lands on a competitor, you lose traffic.

Verdict: The TLD itself is a minor ranking factor, but user trust is a major one.

Recommendation

If you can get the .com, get it. It's still the king.

If not:

  • Tech Startup? Go for .io or .ai
  • App? Go for .app or .co
  • Local Business? Go for your country code (e.g., .co.uk, .de)

Nametastic checks all these extensions simultaneously so you can compare options side-by-side.

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