seodata.dev

keyword

twenty one question

Monthly search volume and cost-per-click data for "twenty one question" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=twenty+one+question&country=us" +--------------+------------------+ | volume | 49,500 | | cpc | $0.04 | | competition | 0.08 | | country | US | | updated | 2026-06-18 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
21 question questions 60,500 $0.08 20/20
questions for 21 questions 60,500 $0.08 17/20
21 questions 49,500 $0.04 20/20
21 question game 22,200 $0.57 14/20
21 questions game questions 14,800 $0.09 15/20
21 questions game 12,100 $0.04 20/20
21 questions to ask 9,900 $0.04 20/20
freaky 21 questions game 3,600 $0.01 14/20
how to play 21 questions 2,900 $0.02 20/20
21 questions questions 480 $0.03 20/20

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=twenty+one+question&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