keyword

california de 4

Monthly search volume and cost-per-click data for "california de 4" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=california+de+4&country=us" +--------------+------------------+ | volume | 1,300 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-07 | +--------------+------------------+

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
de 4	4,400	$0	20/20
de-4	4,400	$0	20/20
de 4 form	3,600	$0.89	20/20
de-4 form	3,600	$0.59	20/20
california tax withholding form	2,400	$0	18/20
california state tax withholding form	2,400	$0	14/20
california de-4	1,300	$0	20/20
w 4 california	1,300	$1.29	17/20
w-4 california	1,300	$1.29	16/20
california de-4 form	590	$2.27	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://api.seodata.dev/v1/keyword?q=california+de+4&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