keyword

biggest online marketplaces

Monthly search volume and cost-per-click data for "biggest online marketplaces" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=biggest+online+marketplaces&country=us" +--------------+------------------+ | volume | 140 | | cpc | $3.03 | | competition | 0.08 | | country | US | | updated | 2026-06-05 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
online marketplaces	40,500	$5.06	19/20
top marketplaces	1,600	$0	20/20
best online marketplaces	1,600	$4.14	19/20
best marketplaces online	390	$4.54	18/20
largest online marketplace	140	$4.99	18/20
largest online marketplaces	140	$4.99	16/20
biggest online marketplace	140	$4.99	15/20
top 10 online marketplaces	110	$4.04	16/20
top 10 online markets	110	$3.4	16/20
biggest marketplaces	40	$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=biggest+online+marketplaces&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