keyword

online textbooks

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

$ curl "https://api.seodata.dev/v1/keyword?q=online+textbooks&country=us" +--------------+------------------+ | volume | 3,600 | | cpc | $2.26 | | competition | 0.28 | | country | US | | updated | 2026-06-14 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
textbook	18,100	$2.11	15/20
textbooks free	9,900	$9.57	12/20
free textbooks online	4,400	$9.14	13/20
free online textbooks	4,400	$9.62	12/20
text book	3,600	$3.39	18/20
text books	3,600	$3.39	14/20
textbooks online	1,600	$2.41	20/20
textbook online	1,300	$2.13	20/20
online text book	260	$1.86	13/20
online textbook websites	260	$1.97	12/20

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://api.seodata.dev/v1/keyword?q=online+textbooks&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