keyword

best free vpns

Monthly search volume and cost-per-click data for "best free vpns" in US.

$ curl "https://app.seodata.dev/v1/search-volume?q=best-free-vpns" +--------------+------------------+ | volume | 33,100 | | cpc | $4 | | competition | 0.59 | | country | US | | updated | 2026-03-29 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
free vpns	201,000	$5.05	20/20
vpn best free	40,500	$4.7	20/20
the best free vpn	33,100	$5.34	18/20
best vpns free	2,400	$4.92	20/20
best vpn free	2,400	$9.03	16/20
vpn for free	1,600	$8.02	16/20
good free vpn	1,600	$4.44	15/20
are vpns free	1,300	$3.2	20/20
phone vpn free	1,300	$5.29	15/20
free vpn best	140	$6.07	16/20

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/search-volume?q=best-free-vpns" 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