
A third of web pages published since ChatGPT’s launch show signs of AI authorship, study finds
A new Pew Research study reveals that over one-third of web pages published since ChatGPT's launch show significant signs of AI authorship.
The research analyzed nearly half a million English-language web pages from the Common Crawl archive, filtering out pre-ChatGPT content to isolate recent trends.
While only 10% of a random sample of all web pages appeared AI-written, the rate jumps to 35% when limited to pages created after November 2022.
The study highlights a stark disparity in AI usage across domain types, with .com sites showing AI authorship rates approximately ten times higher than .edu or .gov domains.
Additionally, the report notes an increase in specific linguistic markers associated with AI writing, such as em dashes and Oxford commas.
This data corroborates recent reports from Cloudflare indicating that bot traffic has now overtaken human traffic, suggesting a web increasingly populated by AI-generated content consumed by AI bots.


