keyword

online biology textbook

Monthly search volume and cost-per-click data for "online biology textbook" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=online+biology+textbook&country=us" +--------------+------------------+ | volume | 170 | | cpc | $5.21 | | competition | 0.26 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
biology textbook	18,100	$0.9	17/20
biology i textbook	1,900	$0.81	9/20
biology textbook online	210	$6.62	12/20
biology online textbook	210	$6.62	9/20
online textbook biology	170	$3.37	14/20
biology online book	170	$5.21	12/20
biology textbooks online	170	$5.21	11/20
biology textbook online free	70	$4.9	12/20
free biology books online	70	$7.71	9/20
free biology textbook online	70	$7.71	9/20

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=online+biology+textbook&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