keyword

what happened on april 9 1940

Monthly search volume and cost-per-click data for "what happened on april 9 1940" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=what+happened+on+april+9+1940&country=us" +--------------+------------------+ | volume | 140 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-09-02 | +--------------+------------------+

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
norway in ww2	3,600	$0	11/20
german invasion of norway	1,600	$0	16/20
norway invasion	1,600	$0	16/20
invasion of denmark and norway	1,600	$0	15/20
german invasion norway	1,600	$0	14/20
invasion of norway	1,600	$0	14/20
when did germany invade norway	390	$0	10/20
april 9 1940	110	$0	11/20
april 9th 1940	110	$0	11/20
when was norway invaded by germany	70	$0	11/20

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=what+happened+on+april+9+1940&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