seodata.dev

keyword

train road sign

Monthly search volume and cost-per-click data for "train road sign" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=train+road+sign&country=us" +--------------+------------------+ | volume | 320 | | cpc | $0.04 | | competition | 0.06 | | country | US | | updated | 2026-06-05 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
railroad crossing sign 22,200 $0.43 16/20
rail road sign 8,100 $3.92 13/20
railroad sign 6,600 $0.87 19/20
train crossing sign 2,400 $1.22 20/20
railway crossing sign 2,400 $1.22 16/20
rail crossing sign 1,900 $0.73 16/20
railroad warning sign 1,000 $0 14/20
train road signs 320 $0.04 16/20
train traffic sign 260 $0.35 16/20
railway road sign 260 $0.35 14/20

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=train+road+sign&country=us" 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