seodata.dev

keyword

best free online vpns

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

$ curl "https://app.seodata.dev/v1/search-volume?q=best-free-online-vpns" +--------------+------------------+ | volume | 70 | | cpc | $5.44 | | competition | 0.31 | | 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 15/20
vpn best free 40,500 $4.7 12/20
best free vpns 33,100 $3.84 18/20
the best free vpn 33,100 $5.34 11/20
best free vpns for android 4,400 $2.94 11/20
best vpns free 2,400 $4.92 20/20
free vpn for 1,300 $5.59 11/20
best vpn service for free 170 $5.83 12/20
best free vpns for mobile 90 $1.43 12/20
best free internet vpns 40 $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/search-volume?q=best-free-online-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