The part of your web address that comes after the "dot" when you register your domain used to be a formality. (It's also known as a TLD.) But in 2026, your domain extension is a signal of industry, intent and credibility.

That’s what we saw in the latest data from Wix’s Top Domains of 2026 Report: several extensions surged in popularity in 2026, and they were usually specific to what a business does. 

To be clear, .com has staying power. It was still the most popular domain extension (and by a lot). But the fastest growing extensions in the tech space are worth considering if you want your URL to do some of the positioning work for you. Take a look at the trends.

.io increased 32x in one month

.io grew 32x in May 2026 alone. That’s "io" as in input/output, a popular choice for tech startups and SaaS companies. The more companies that adopt .io, the more recognizable it will be to customers, which means the credibility signal could become stronger in time. If you want to signal technical credibility, see if this domain extension is available for your business. 

.store, .online, and .shop doubled in five months

.store, .online, and .shop all doubled between January and May 2026. Each one tells a visitor exactly what kind of site they're landing on (eCommerce) before they've read a single word. So if you’re wondering, is .shop a good domain?, this data points to "yes."

.ai is up 20%

This one has slower growth than the others, but it’s strong and steady. Again, businesses want their domain to signal what they do, and for a lot of businesses today, that means AI.

How to choose the best domain extension for your business

.io, .store and .ai represent different types of businesses, but they clearly communicate the brand's industry and identity. So, if you're registering a domain today, it's worth asking whether your extension is doing any of that work, or just taking up space after the dot. Wix offers over 400 domain extensions, including .io, .store, .online, .shop and .ai, so you can find the right fit for your business.