seodata.dev

keyword

about 500 years ago the world's population started

Monthly search volume and cost-per-click data for "about 500 years ago the world's population started" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=about+500+years+ago+the+world's+population+started&country=us" +--------------+------------------+ | volume | 40 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-26 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
world population in 1900 2,900 $2 11/20
population earth over time 2,400 $3.86 11/20
population of earth over time 2,400 $3.86 11/20
population 1800 world 1,600 $0 13/20
historical world population 1,300 $10.73 13/20
history of world population 1,300 $2.22 13/20
world population 1920 1,000 $0 12/20
world population in 1920 1,000 $0 12/20
world population 1800 720 $0 13/20
human history population 140 $0 12/20

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=about+500+years+ago+the+world's+population+started&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