seodata.dev

keyword

what causes headaches

Monthly search volume and cost-per-click data for "what causes headaches" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+causes+headaches&country=us" +--------------+------------------+ | volume | 27,100 | | cpc | $1.75 | | competition | 0.25 | | country | US | | updated | 2026-06-18 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
headaches 135,000 $2.84 20/20
what causes headache 27,100 $1.75 20/20
why do i have a headache 12,100 $3.02 20/20
headache cause 9,900 $1.1 20/20
headache is 9,900 $2.3 20/20
what are headaches 9,900 $4.25 20/20
causes of headache 8,100 $1.16 20/20
causes of headaches 8,100 $1.16 20/20
headache causes 8,100 $1.12 20/20
headaches causes 8,100 $1.12 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/keyword?q=what+causes+headaches&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