keyword

rl 4

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

$ curl "https://app.seodata.dev/v1/keyword?q=rl+4&country=us" +--------------+------------------+ | volume | 210 | | cpc | $0.59 | | competition | 0.02 | | country | US | | updated | 2026-06-05 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
rl-4	210	$0.59	15/20
4 rl 4	210	$1.47	9/20
4 rl	210	$1.47	8/20
rl4.4	210	$0.59	4/20
rl 4.1	110	$0.61	5/20
standard 4th	90	$0	5/20
rl 4.2	90	$0	4/20
4 rl 1	50	$0	8/20
1 rl 4	50	$0	6/20
rl 4.6	40	$0.86	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=rl+4&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