Findings / AI tools with a verified domain← Who runs their DNSWorkspace SaaS visible in DNS →
06 / 10 · AI tools with a verified domain · 1,828 YC startups
11.4% have verified their domain with an AI vendor. Anthropic leads at 8.3%, 1.9× OpenAI.
| Label | Share | Value |
|---|---|---|
| Any of these | 11% | |
 Anthropic | 8.3% | |
 OpenAI | 4.3% | |
 Cursor | 1.8% | |
 Mistral AI | 0.1% | |
 ElevenLabs | 0.1% |
How it was measured
From TXT verification records, which companies add to set up SSO or a team workspace. Individual seats on a credit card leave no trace, so this undercounts usage.
Sample
1,828 of 1,873 listed YC startups, W24–F26. Medium confidence and up. Methodology