Best Domain Extensions (TLDs) and How to Choose
The extension is your first impression. Here’s how to choose a TLD that feels credible, fits your category, and doesn’t surprise you later.
Quick takeaway
The extension is your first impression. Here’s how to choose a TLD that feels credible, fits your category, and doesn’t surprise you later.
Extensions aren’t equal (trust matters)
Your extension (TLD) influences first impressions. People still trust .com the most, but modern startups also use .io, .ai, and strong country TLDs.
How to choose the best extension for you
Default to .com when possible (global trust + resale demand).
Use .io / .ai for tech brands when .com isn’t realistic.
Use a country TLD when you serve a local market (e.g., .co.uk).
Avoid “cheap-looking” TLDs if your goal is premium positioning.
Check renewal pricing—some TLDs spike after year one.
Quick guide by use-case
| Use case | Good picks | Notes |
|---|---|---|
| Global brand | .com | Most recognizable and liquid. |
| AI / ML products | .ai, .com | .ai is trendy; .com still anchors trust. |
| Developer tools | .io, .dev, .com | .dev can be strong, but verify pricing. |
| Local business | country TLD + .com | Local trust + optional global footprint. |
A note on resale value
If resale matters, choose extensions with real buyer demand. In general, .com is the most liquid. Some niche TLDs can work, but value is often more volatile and demand is thinner.
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