keyword

physics textbook online

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

$ curl "https://app.seodata.dev/v1/keyword?q=physics+textbook+online&country=us" +--------------+------------------+ | volume | 170 | | cpc | $6.59 | | competition | 0.08 | | country | US | | updated | 2026-06-16 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
physics textbook	3,600	$0.66	19/20
physics online textbook	170	$0	16/20
online physics textbook	170	$6.59	15/20
free physics textbooks	110	$1.99	14/20
online physics book	50	$0	15/20
physics online book	40	$2.16	16/20
free online physics textbooks	30	$4.29	15/20
free physics textbook online	30	$4.66	15/20
physics textbook online free	30	$4.29	15/20
physics textbooks online free	30	$4.29	14/20

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=physics+textbook+online&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt