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keyword

what is the carbon dioxide

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

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+the+carbon+dioxide&country=us" +--------------+------------------+ | volume | 9,900 | | cpc | $1.28 | | competition | 0 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
co2 what is 22,200 $0.18 20/20
what is co2 22,200 $0.18 20/20
what is carbon dioxide 9,900 $0.41 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
co2 meaning 3,600 $3.32 18/20
carbon dioxide co2 1,600 $1.49 19/20

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+the+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