seodata.dev

keyword

online trig textbook

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

$ curl "https://app.seodata.dev/v1/keyword?q=online+trig+textbook&country=us" +--------------+------------------+ | volume | 30 | | cpc | $6.66 | | competition | 0.37 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
trigonometry textbook 1,300 $0.39 10/20
trigonometric book 480 $0.46 12/20
trigonometry book 480 $0.58 10/20
trig textbook 390 $0.47 11/20
trigonometry textbook :pdf 320 $1.31 11/20
trigonometry textbook pdf 320 $1.31 11/20
trigonometry online textbook 30 $6.66 18/20
online trigonometry textbook 30 $0 16/20
trigonometry textbook online 30 $6.66 16/20
trigonometry book online 30 $6.66 15/20

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+trig+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