seodata.dev

keyword

best free vpn

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

$ curl "https://app.seodata.dev/v1/search-volume?q=best-free-vpn" +--------------+------------------+ | volume | 40,500 | | cpc | $4.7 | | competition | 0.44 | | country | US | | updated | 2026-03-29 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
free vpn 201,000 $5.26 20/20
vpn free 110,000 $4.22 20/20
vpn best free 40,500 $4.7 20/20
vpn free good 40,500 $7.11 20/20
free vpn apps 4,400 $4.32 20/20
best vpn free 2,400 $9.03 20/20
good free vpn 1,600 $4.44 20/20
vpn for free 1,600 $8.02 20/20
how to get a vpn free 1,300 $5.19 20/20
free vpn best 140 $6.07 20/20

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-vpn" 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