seodata.dev

keyword

list of 1st 2nd 3rd world countries

Monthly search volume and cost-per-click data for "list of 1st 2nd 3rd world countries" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=list+of+1st+2nd+3rd+world+countries&country=us" +--------------+------------------+ | volume | 4,400 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-27 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
first world countries 12,100 $0 19/20
1st world countries 12,100 $0 17/20
3rd world countries list 5,400 $0 18/20
3rd world country list 5,400 $0 18/20
third world countries list 5,400 $0 18/20
third world country list 5,400 $0 17/20
1st 2nd 3rd world countries list 4,400 $0 20/20
1st 2nd/3rd world countries list 4,400 $0 19/20
first world countries list 2,400 $0 17/20
list of first world countries 2,400 $0 17/20

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=list+of+1st+2nd+3rd+world+countries&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