ChatGPT’s Most-Cited Sites Tilt Toward Primary Sources, Data Shows

According to Ahrefs data, PubMed moved up from 64th to fourth place among the domains ChatGPT most frequently cited in U.S. answers from March to September, while WebMD dropped from 18th to 79th. Most of the climbers in the report’s chart were government health and research sites, regulators, and hands-on product testers. Health and finance explainers lost ground, and Britannica, Investopedia, and the New York Post fell out of the top 200. Ahrefs writes that ChatGPT “seems to be prioritizing original sources over sites that summarize them.” The report also looked at how frequently ChatGPT searches happen. Out of 66.6 million free, logged-out responses from August and September, 14.4% involved running a web search. Ahrefs looked at the 200 domains most frequently cited by ChatGPT in U.S.