keyword

1st earth day

Monthly search volume and cost-per-click data for "1st earth day" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=1st+earth+day&country=us" +--------------+------------------+ | volume | 2,400 | | cpc | $3.44 | | competition | 0.06 | | country | US | | updated | 2026-06-26 | +--------------+------------------+

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
when was the first earth day	2,900	$8.55	19/20
first earth day	2,900	$13.4	18/20
who created earth day	2,400	$6.67	12/20
earth day first	2,400	$6.38	11/20
who started earth day	2,400	$6.67	11/20
when was the 1st earth day	1,900	$3.32	16/20
earth day history	1,900	$9.28	12/20
history about earth day	1,900	$19.61	12/20
when was the first earth day celebrated	1,300	$22.52	14/20
when was earth day first celebrated	1,300	$22.52	13/20

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=1st+earth+day&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