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keyword

why are stop signs octagons

Monthly search volume and cost-per-click data for "why are stop signs octagons" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=why+are+stop+signs+octagons&country=us" +--------------+------------------+ | volume | 210 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-17 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
stop sign shape 8,100 $0.64 14/20
what is the shape of a stop sign 6,600 $0 16/20
what shape is a stop sign 6,600 $0 16/20
how many sides does a stop sign have 1,600 $0 13/20
red stop sign 1,300 $1.93 12/20
is a stop sign an octagon 390 $0 13/20
why is a stop sign an octagon 210 $0 17/20
are stop signs octagons 110 $0 13/20
red octagon stop sign 40 $0.33 11/20
is stop sign octagon 30 $0 13/20

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=why+are+stop+signs+octagons&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt