A Third of Web Pages Published Since ChatGPT’s Launch Show Signs of AI Authorship, Study Finds
A Groundbreaking Study Reveals the Rise of AI-Generated Content on the Web
A recent study from the Pew Research Center has shed light on the growing presence of artificial intelligence (AI) in web content. The study, which analyzed nearly half a million English-language web pages, found that over one-third of web pages published after the release of ChatGPT show signs of being written by AI.
The report, which was released on Thursday, corroborates other studies that have highlighted the increasing role of AI in web content. According to the study, a random sample of 10,000 web pages collected in July 2026 showed that around 10% of the pages displayed ‘significant signs of AI authorship.’ However, this number is likely an underestimate, as the sample included older web pages that were published before AI writing tools even existed.
To get a more accurate picture of the prevalence of AI-generated content, the researchers filtered out the older web pages and focused on those published after the release of ChatGPT. In this snapshot, signs of AI authorship were found in over one-third (35%) of the pages.
The study also looked at the types of domains that were more likely to feature AI-generated content. According to the researchers, URLs with a .com domain showed signs of AI authorship at around 10x the rate of a .edu or .gov domain. In contrast, .org domains had a relatively low rate of AI authorship, at around 4.6%.
It’s worth noting that the analysis is not perfect, and AI-detection tools like Open Pangram can misclassify pages as AI written when they weren’t. However, at scale, the data is likely at least directionally correct. The study’s findings are a testament to the growing presence of AI in web content and highlight the need for more research into this area.
In addition to the study’s findings on AI-generated content, the researchers also looked at other supposed tells of AI authorship. According to the study, the use of em dashes, Oxford commas, and phrasing like ‘it’s not X, it’s Y’ had increased over the years. These findings suggest that AI-generated content is not only becoming more prevalent but also becoming more sophisticated.
The study’s findings have significant implications for the way we interact with web content. As AI-generated content becomes more prevalent, it’s essential to consider the potential consequences of relying on AI-generated information. While AI-generated content can be helpful in many situations, it’s also important to be aware of its limitations and potential biases.
In conclusion, the Pew Research Center’s study highlights the growing presence of AI in web content. As we continue to navigate the complex world of AI-generated information, it’s essential to stay informed and up-to-date on the latest research and findings in this area.