seodata.dev

keyword

best vpn free

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

$ curl "https://app.seodata.dev/v1/search-volume?q=best-vpn-free" +--------------+------------------+ | volume | 2,400 | | cpc | $5.67 | | competition | 0.48 | | country | US | | updated | 2026-03-29 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
vpn free 110,000 $4.22 20/20
best free vpn 40,500 $7.11 20/20
vpn best free 40,500 $4.7 20/20
vpn free good 40,500 $7.11 20/20
the best free vpn 33,100 $5.34 20/20
free vpn app 4,400 $2.92 20/20
free vpn apps 4,400 $4.32 20/20
vpn app free 4,400 $2.92 20/20
vpn free app 4,400 $2.92 20/20
fastest free vpn 1,900 $2.13 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-vpn-free" 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