All sites / United States / #93 / Health and medical / publisher / US Government

cdc.gov kept its Google rankings and lost 23% of its search traffic.

estimated monthly search visits, Oct 2024: 11.1M; estimated monthly search visits, Oct 2024
estimated monthly search visits, Oct 2026: 8.6M; estimated monthly search visits, Oct 2026
change in estimated search traffic: −23%; change in estimated search traffic
change in keywords ranking top 3: +63%; change in keywords ranking top 3

Estimated search traffic

cdc.gov, Ahrefs estimated monthly organic search traffic, United States. Dotted line marks the Oct 2024 level. Vertical marks are Google results page changes.

Keywords ranking in Google's top three

cdc.gov, keywords ranking positions 1 to 3, United States. Dotted line marks the Oct 2024 level. Vertical marks are Google results page changes.

Points are Ahrefs Site Explorer estimates for the first of each month shown. Months in between are being collected. All 769,632 ranking keywords in Oct 2026, against 3,587,896 in Oct 2024.

How often AI answers cite cdc.gov

Engine	Citations in the Ahrefs index
ChatGPT	46,256
Google AI Mode	7,699
Gemini	2,568

Ahrefs AI responses index, captured 28 October 2026, United States, including subdomains.

Five questions we ask the AI engines about cdc.gov

Written from the site's own top Google keywords, keeping the intent of the search.

Engine	Named	Linked
ChatGPT	5 of 5	5 of 5
Google AI Mode	4 of 5	4 of 5
Gemini	5 of 5	1 of 5

Give me an overview of “stress management”, with links to reliable sources.from the keyword “stress management”
What does reliable medical information say about flu symptoms, including uncertainties and when to speak to a clinician?from the keyword “flu symptoms”
Give me an overview of “bmi calculator”, with links to reliable sources.from the keyword “bmi calculator”
Give me an overview of “cyclosporiasis”, with links to reliable sources.from the keyword “cyclosporiasis”
What does reliable medical information say about covid symptoms, including uncertainties and when to speak to a clinician?from the keyword “covid symptoms”

Visits since ChatGPT launched

all visits, Nov 2022: 40.0M; all visits, Nov 2022
all visits, Oct 2026: 16.4M; all visits, Oct 2026
organic search visits, Oct 2026: 9.0M; organic search visits, Oct 2026
visits from AI assistants, Oct 2026: 165K; visits from AI assistants, Oct 2026

Semrush Traffic Analytics modelled visits, United States, a separate source from the Ahrefs estimates above. Semrush restates this data on 9 November 2026.