AI now writes 1 in 10 web pages — and 'delve' is its calling card

pew research center's analysis of common crawl data reveals that 10% of all web pages and over 33% of pages published post-chatgpt show clear signs of ai authorship. commercial .com sites drive this trend, containing ai text at ten times the rate of educational or government domains, while specific markers like the word 'delve' and oxford commas have more than doubled in frequency since 2023. despite detection tool limitations in distinguishing full automation from human assistance, the data indicates a massive adoption curve that is reshaping the web's linguistic landscape. future web crawling and training datasets will likely require aggressive filtering to avoid model collapse or training on recursive synthetic data.