What Is .mobi?
The .mobi domain is a generic top-level domain that was launched in 2006, specifically designed for mobile-optimized websites. It was backed by major mobile companies including Nokia, Samsung, and Microsoft.
When .mobi launched, most websites were not mobile-friendly, and having a separate mobile site was common. However, responsive web design has since made dedicated mobile sites largely unnecessary, reducing the practical need for .mobi.
The extension still has active registrations, but its relevance has diminished significantly. It serves as a cautionary tale about TLDs built around technology trends that can be overtaken by broader industry shifts.
Why This Matters for Startups
For modern startups, .mobi offers little advantage. Responsive design means your main website should work on all devices, making a separate mobile domain unnecessary. Your budget is better spent on a .com, .io, or sector-specific extension.
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