All sites / United States / #21 / Health and medical / publisher / US Government
nih.gov held its search traffic within 10%.
estimated monthly search visits, Oct 2024
47.5M
estimated monthly search visits, Oct 2024
estimated monthly search visits, Oct 2026
44.7M
estimated monthly search visits, Oct 2026
change in estimated search traffic
−6%
change in estimated search traffic
change in keywords ranking top 3
+26%
change in keywords ranking top 3
Estimated search traffic
nih.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
nih.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 5,185,934 ranking keywords in Oct 2026, against 16,913,461 in Oct 2024.
How often AI answers cite nih.gov
Engine
Citations in the Ahrefs index
ChatGPT
183,764
Google AI Mode
70,130
Gemini
19,611
Ahrefs AI responses index, captured 28 October 2026, United States, including subdomains.
Five questions we ask the AI engines about nih.gov
Written from the site's own top Google keywords, keeping the intent of the search.
Engine
Named
Linked
ChatGPT
5 of 5
4 of 5
Google AI Mode
3 of 5
3 of 5
Gemini
2 of 5
0 of 5
Give me an overview of “habit formation”, with links to reliable sources.from the keyword “habit formation”
Give me an overview of “bmi calculator”, with links to reliable sources.from the keyword “bmi calculator”
What is PubMed, and how can I use it to find medical research?from the keyword “pubmed”
Give me an overview of “zinc supplements”, with links to reliable sources.from the keyword “zinc supplements”
Give me an overview of “bmi”, with links to reliable sources.from the keyword “bmi”
Visits since ChatGPT launched
all visits, Nov 2022
86.8M
all visits, Nov 2022
all visits, Oct 2026
85.3M
all visits, Oct 2026
organic search visits, Oct 2026
43.9M
organic search visits, Oct 2026
visits from AI assistants, Oct 2026
1.1M
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.
