keyword

can caffeine cause headaches

Monthly search volume and cost-per-click data for "can caffeine cause headaches" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=can+caffeine+cause+headaches&country=us" +--------------+------------------+ | volume | 3,600 | | cpc | $1.17 | | competition | 0.02 | | country | US | | updated | 2026-06-19 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
caffeine headache	14,800	$0.65	20/20
caffeine headaches	14,800	$0.5	20/20
can caffeine help headaches	8,100	$2.51	20/20
coffee and headaches	1,900	$0.03	20/20
coffee for headache	1,900	$0.74	20/20
coffee headaches	1,900	$0.74	20/20
does coffee help with headaches	1,900	$1.33	20/20
caffeine headache location	1,600	$0.62	20/20
caffeine headaches location	1,600	$1.04	20/20
can too much caffeine cause headaches	1,300	$1.62	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://api.seodata.dev/v1/keyword?q=can+caffeine+cause+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