Common Crawl is shown in their screen shot of "Providers" along side OpenAI and Antropic. The challenge is that Common Crawl is used for a lot of things that are not AI training. For example, it's a major source of content for the Wayback machine.
In fact, that's the entire point of the Common Crawl project. Instead of dozens of companies writing and running their (poorly) designed crawlers and hitting everyone's site, Common Crawl runs once and exposes the data in industry standard formats like WARC for other consumers. Their crawler is quite well behaved (exponential backoff, obeys Crawl-Delay, will use SiteMaps.xml to know when to revisit, follows Robots.txt, etc.).
There are significant knock-on effects if CloudFlare starts (literally) gatekeeping content. This feels like a step down the path to a world where the majority of websites use sophisticated security products that gatekeep access to those who pay and those who don't, and that applied whether they are bots or people.
In fact, that's the entire point of the Common Crawl project. Instead of dozens of companies writing and running their (poorly) designed crawlers and hitting everyone's site, Common Crawl runs once and exposes the data in industry standard formats like WARC for other consumers. Their crawler is quite well behaved (exponential backoff, obeys Crawl-Delay, will use SiteMaps.xml to know when to revisit, follows Robots.txt, etc.).
There are significant knock-on effects if CloudFlare starts (literally) gatekeeping content. This feels like a step down the path to a world where the majority of websites use sophisticated security products that gatekeep access to those who pay and those who don't, and that applied whether they are bots or people.