{"id":146414,"date":"2026-08-20T17:42:10","date_gmt":"2026-08-20T17:42:10","guid":{"rendered":"https:\/\/www.europesays.com\/ai\/146414\/"},"modified":"2026-08-20T17:42:10","modified_gmt":"2026-08-20T17:42:10","slug":"a-third-of-web-pages-published-since-chatgpts-launch-show-signs-of-ai-authorship-study-finds","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ai\/146414\/","title":{"rendered":"A third of web pages published since ChatGPT’s launch show signs of AI authorship, study finds"},"content":{"rendered":"

Over one-third of web pages published after the release of ChatGPT show signs of being written by AI, according to a new study from Pew Research<\/a> released on Thursday. The report corroborates other studies<\/a> that detail how much of the web\u2019s newer web pages are now either written by or \u201csubstantially edited\u201d by AI, the firm says.<\/p>\n

It also arrives shortly after internet infrastructure provider Cloudflare reported<\/a> that bot web traffic had overtaken human web traffic \u2014 a milestone that was reached sooner than the company had estimated.<\/p>\n

Pew\u2019s data, however, is focused not on who or what is browsing the web, but on what is being browsed. And apparently, much of it is bots reading web pages written by other bots.<\/p>\n

To compile the report, Pew said it used the\u00a0Common Crawl<\/a>\u00a0web archive to collect nearly half a million English-language web pages from the past five or so years, starting a couple of years before ChatGPT\u2019s November 2022 release. Pew then used Open Pangram\u2019s<\/a> technology to detect how many were likely written or heavily edited by AI.<\/p>\n

In a random sample of 10,000 web pages collected in July 2026, around 10% showed \u201csignificant signs of AI authorship,\u201d Pew said.<\/p>\n

However, Pew pointed out that a random sample like this would inevitably include older web pages \u2014 ones published before AI writing tools even existed, and therefore couldn\u2019t have been AI-written.<\/p>\n

\"\"% of web pages showing significant AI editing or authorship
Image Credits:Pew Research<\/p>\n

To get a better sense of how much of the web is now being written by AI, Pew filtered out the older web pages and focused only on those published after the release of ChatGPT.<\/p>\n

In this same snapshot with the older pages removed, signs of AI authorship were found in over one-third (35%) of the pages. <\/p>\n

\"\"ScreenshotImage Credits:Pew Research<\/p>\n

Drilling down into domains themselves, Pew found that URLs with a .com domain showed signs of AI authorship at around 10 times the rate of a .edu or .gov domain (both of which were around 1% AI-authored. In addition, .org domains had only a 4.6% rate of AI authorship.<\/p>\n

Of course, this analysis is not perfect. Pangram, like other AI detection tools, can misclassify pages as AI-written when they weren\u2019t. But at scale, the data is likely at least directionally correct. <\/p>\n

In addition, Pew found that other supposed tells of AI authorship had also increased over the years, like the use of em dashes, Oxford commas, and phrasing like \u201cit\u2019s not X, it\u2019s Y,\u201d among other things. <\/p>\n

When you purchase through links in our articles, we may earn a small commission<\/a>. This doesn\u2019t affect our editorial independence.<\/p>\n","protected":false},"excerpt":{"rendered":"Over one-third of web pages published after the release of ChatGPT show signs of being written by AI,…\n","protected":false},"author":2,"featured_media":146415,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[24,580,157,71974,1983],"class_list":["post-146414","post","type-post","status-publish","format-standard","has-post-thumbnail","category-openai","tag-ai","tag-chatgpt","tag-openai","tag-pew-research","tag-web"],"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/posts\/146414","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/comments?post=146414"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/posts\/146414\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/media\/146415"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/media?parent=146414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/categories?post=146414"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/tags?post=146414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}