keyword

when was the constitution ratified

Monthly search volume and cost-per-click data for "when was the constitution ratified" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=when+was+the+constitution+ratified&country=us" +--------------+------------------+ | volume | 12,100 | | cpc | $2.93 | | competition | 0.01 | | country | US | | updated | 2026-03-30 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
constitution ratification	6,600	$3.49	20/20
constitution ratified	6,600	$3.44	20/20
ratification of the constitution	6,600	$3.44	20/20
ratified constitution	6,600	$3.44	20/20
us constitution date	2,400	$9.02	19/20
when was the us constitution ratified	1,900	$1.41	20/20
when was the constitution adopted	1,600	$0.97	20/20
us constitution ratified	1,300	$5.87	20/20
when was the constitution written and ratified	1,300	$4.41	20/20
constitution ratified year	390	$0	19/20

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+was+the+constitution+ratified&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