Stats
Y Combinator · Winter 2020, Summer 2020 · 1 November 2026

What domains do YC’s 2020 startups use?

Of the 417 startups in Y Combinator’s 2020 batches that have a website, 59% use a .com and 9% a .ai.

59%
on .com, 2019: 68%
9%
on .ai, 2019: 7%
1 in 7
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 2020 startups use

  1. .com59%
  2. .ai9%
  3. .io9%
  4. .co5%
  5. .app3%
  6. .in2%
  7. 34 more extensions14%

Batch by batch

Winter 2020219.com59%.ai11%
Summer 2020198.com59%.ai8%

Is the .com of a 2020 YC startup’s name for sale?

171 of the 2020 startups are not on a .com. For 26 of them (1 in 7), the .com of their name is for sale, and 3 more are parked. 141 are registered with no sale listing; some are the startup’s own redirect. 1 is unregistered.

  1. For sale15%
  2. Parked2%
  3. Registered, no sale listing82%
  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.