seodata.dev

keyword

what is carbon dioxide

Monthly search volume and cost-per-click data for "what is carbon dioxide" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+carbon+dioxide&country=us" +--------------+------------------+ | volume | 9,900 | | cpc | $0.41 | | competition | 0.01 | | country | US | | updated | 2026-05-20 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
carbon dioxide 90,500 $1.13 20/20
co2 what is 22,200 $0.18 20/20
what is co2 22,200 $0.18 20/20
what is the carbon dioxide 9,900 $1.28 20/20
carbon dioxide definition 4,400 $0 20/20
carbon dioxide description 4,400 $0 20/20
carbon dioxide meaning 4,400 $0 20/20
meaning of carbon dioxide 4,400 $0 20/20
co2 definition 3,600 $3.32 20/20
meaning of co2 3,600 $3.32 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=what+is+carbon+dioxide&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