keyword

primary source historical documents

Monthly search volume and cost-per-click data for "primary source historical documents" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=primary+source+historical+documents&country=us" +--------------+------------------+ | volume | 10 | | cpc | $0 | | competition | 0.14 | | country | US | | updated | 2026-05-21 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
primary documents	27,100	$11.16	13/20
primary sources	22,200	$20.21	12/20
primary source in history	880	$9.84	14/20
primary sources of history	880	$9.84	13/20
what are primary sources in history	880	$4.84	13/20
primary resources	880	$0	12/20
primary source history	880	$9.84	12/20
what is a primary source in history	880	$0	10/20
good primary sources	20	$0	10/20
how are primary sources used in history	10	$0	11/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=primary+source+historical+documents&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt