keyword

when did people start dying their hair

Monthly search volume and cost-per-click data for "when did people start dying their hair" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=when+did+people+start+dying+their+hair&country=us" +--------------+------------------+ | volume | 140 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-03-31 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
when was hair dye invented	1,600	$0	20/20
when was hair bleach invented	1,300	$0	18/20
who invented hair coloring	320	$0	15/20
hair dye history	260	$0	15/20
history of dyeing hair	260	$0	15/20
hair coloring history	260	$0	14/20
hair dyeing history	260	$0	14/20
history of coloring hair	260	$0	14/20
when did hair dye come out	140	$0	15/20
invention of hair dye	50	$0	15/20

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=when+did+people+start+dying+their+hair&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