keyword

what are the four r's

Monthly search volume and cost-per-click data for "what are the four r's" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+are+the+four+r's&country=us" +--------------+------------------+ | volume | 50 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-21 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
4 r's	4,400	$2.75	9/20
4 rs	4,400	$2.75	7/20
4 r	4,400	$4.69	4/20
four r	170	$0	11/20
what are the 4 r's	140	$0	8/20
the 4 rs	140	$0	4/20
the 4 r's	110	$0	8/20
the 4 r	110	$0	6/20
the four rs	90	$0	9/20
follow the four r's when	70	$0	5/20

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=what+are+the+four+r's&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