The Best Domain Extensions for SEO in 2025

For years, .com was treated as the only extension that mattered for SEO. In 2025, the picture is more nuanced: .com still offers the most advantage, but plenty of other extensions rank just fine when used well.

Does the Domain Extension Affect SEO?

Yes, but indirectly. Google has stated that it treats all TLDs (except country-code TLDs) the same for general ranking. The advantage of .com comes from trust, click-through rate, and brand recognition, not from a direct ranking signal.

Why .com Still Wins

• Users default to .com when typing a URL.
• It carries the highest trust in surveys of consumer behavior.
• It resells for the highest price. See our domain appraisal guide.
• It is the easiest extension to negotiate and resell on the secondary market.

When Other Extensions Make Sense

A non-.com extension can be the right call when:

• The .com is unavailable and out of budget.
• You want a wordplay domain (e.g. .io for tech, .ai for AI startups, .agency for services).
• You are targeting a specific country with a ccTLD like .co.uk or .de.

Read our domain name SEO guide for how on-page factors interact with extension choice.

Extensions to Approach with Caution

Some new generic TLDs have a history of being used heavily in spam. A .xyz or .top domain can rank, but it requires stronger content and backlinks to establish trust. If your project has long-term SEO ambitions, lean toward established extensions.

Country-Code TLDs and Local SEO

Country-code extensions like .co.uk, .de, .fr, and .com.au are strong signals for local SEO. If your business serves a single country, a ccTLD will often outrank a generic .com in local search.

The SEO Checklist for Any Extension

1. Choose an extension that matches user expectation.
2. Make sure the domain is short, brandable, and easy to spell.
3. Build clean on-page SEO. Our domain name SEO guide covers the basics.
4. Check the backlink history if you buy an expired domain.

Next Steps

Not sure which extension to choose? Read our how to buy a domain name guide for a step-by-step buying decision.