Stats
Y Combinator · Winter 2026, Spring 2026, Summer 2026, Fall 2026 · 1 November 2026

What domains do YC’s 2026 startups use?

Of the 813 startups in Y Combinator’s 2026 batches that have a website, 48% use a .com and 26% a .ai.

48%
on .com, 2025: 45%
26%
on .ai, 2025: 33%
1 in 5
startups off .com find the .com of their name for sale

See what the .com of your name is worth before you pick .ai or .io →

Which extensions the 2026 startups use

  1. .com48%
  2. .ai26%
  3. .io4%
  4. .dev3%
  5. .co3%
  6. .sh1%
  7. 60 more extensions15%

Batch by batch

Winter 2026196.com44%.ai29%
Spring 2026193.com52%.ai27%
Summer 2026228.com49%.ai25%
Fall 2026196.com46%.ai26%

Is the .com of a 2026 YC startup’s name for sale?

424 of the 2026 startups are not on a .com. For 88 of them (1 in 5), the .com of their name is for sale, and 9 more are parked. 323 are registered with no sale listing; some are the startup’s own redirect. 4 are unregistered.

  1. For sale21%
  2. Parked2%
  3. Registered, no sale listing76%
  4. Unregisteredunder 1%

Own the .com of a startup’s name? See what it’s worth →

Source: Y Combinator’s company directory and the .com zone file, 1 November 2026.