More Than One Third of Websites Online Are Now Written by AI

More than one-third of English-language webpages published since ChatGPT introduced show significant signs of being written or substantially edited by artificial intelligence, according to a new Pew Research Center analysis.

Key points

• Pew examined around 490, 000 English-language webpages collected through Common Crawl between January 2021 and July 2026.
• When Pew considered only webpages published after ChatGPT's November 2022 launch, nevertheless, AI signals appeared in more than one-third of pages in its July 2026 snapshot.
• Throughout the entire July 2026 sample, including older pages that predate modern generative AI, 10% demonstrated significant signs of AI authorship.
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Pew examined around 490, 000 English-language webpages collected through Common Crawl between January 2021 and July 2026. The pages were analyzed using the Open Pangram AI-detection model.

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In Pew's 2026 samples, roughly one in 10.com webpages indicated signs of AI authorship.

That was around twice the 4.6% rate on.org sites and roughly 10 times higher than the approximately 1% recorded on both.edu and.gov domains.

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Pew additionally identified that a number of writing habits commonly associated with AI models have become much more frequent online since 2023.

While Oxford commas have climbed by 63%, the employ of em dashes has roughly doubled.

Words frequently associated with AI-generated writing, including "delve, " "interplay, " and "testament, " have more than doubled in frequency.

Although Pew observed that the construction remains relatively uncommon overall, another pattern known as negative parallelism, such as "it's not just X, it's Y, " has almost tripled.

Pew cautioned that these writing habits alone cannot determine whether an individual article was written by AI. Humans additionally apply them, and AI-detection tools can incorrectly classify both human and machine-written text.

Nevertheless, Pew stated analyzing hundreds of thousands of documents together can reveal broader changes in how online writing is evolving as generative AI becomes more widely applied. Stay Connected with ProPakistani.

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For now, more Than One Third of Websites Online Are Now Written by AI remains the part of the story worth watching, and further updates are likely as more details are confirmed.