seodata.dev

keyword

21 question questions

Monthly search volume and cost-per-click data for "21 question questions" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=21+question+questions&country=us" +--------------+------------------+ | volume | 60,500 | | cpc | $0.08 | | competition | 0.16 | | country | US | | updated | 2026-06-15 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
questions for 21 questions 60,500 $0.08 20/20
21 questions 49,500 $0.04 17/20
21 questions game questions 14,800 $0.09 20/20
21 questions game 12,100 $0.04 20/20
21 questions to ask 9,900 $0.04 20/20
how to play 21 questions 2,900 $0.02 20/20
21 question game 480 $0.04 20/20
21 questions questions 480 $0.03 20/20
21 fun questions 140 $0.04 18/20
playing 21 questions 110 $0.03 18/20

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=21+question+questions&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