New CSC report examines top level domains popular with large corporations

Some top level domains punch above their weight for corporation registrations.

Corporate domain registrar and brand protection company CSC has issued its Domain Name Trends 2026 report, examing which top level domain names are popular with large corporations. The company included companies with 250+ employees and at least 100 domain names.

It’s an interesting look at the consumer market vs. corporate market for domain names. For example, these are the top five most registered domains by corporations:

1. com
2. net
3. co.uk
4. org
5. info

This includes registrations for a primary website as well as defensive registrations. .Info might surprise some, but keep in mind it’s one of the older top level domains and was registered defensively by many companies. .Biz, which some would consider .info’s twin because of its release date, is #9 on the list.

The report also breaks down top TLDs by region. For EMEA companies, .co.uk moves up a spot to #2. .Fr and .de domains also move into the top five. .Com.au is #1 among APAC countries.

For North American companies, it’s probably what you’d expect: .com, .net, .org, .info, and .biz. These are widely considered the legacy top level domains. Still, large North American companies commonly register .co.uk, which is #6. As for .us…#7. It’s probably telling that North American companies are more likely to register a .uk domain than a .us domain.

None of the new top level domains from the 2012 round are among the top 20 registered by large corporations. When it comes to new TLDs, these are the five most registered:

1. app
2. online
3. shop
4. xyz
5. sucks

CSC notes that many TLDs companies register, such as .cloud and .shop, are ripe for use in phishing attacks because they appear legitimate. Other top 20 names are reputation-senstive terms, such as .sucks, .porn, and .adult.

The report also notes that companies are behind the ball on .ai, with many brand-matching registrations held by third parties.

The full report is available for download here.