keyword

3.5 8x 6 21

Monthly search volume and cost-per-click data for "3.5 8x 6 21" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=3.5+8x+6+21&country=us" +--------------+------------------+ | volume | 40 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-27 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
1/2 x 3/2	12,100	$0.23	4/20
2 1/2 x 1	8,100	$0	4/20
2 1/2 x 3 1/2	8,100	$3.56	4/20
3/2 x 5	8,100	$0	4/20
y 10 0	8,100	$0	4/20
2/4 x 2	5,400	$3.36	4/20
1 x 5/2	3,600	$0	4/20
4x 3	3,600	$2.46	4/20
1/4 y 12	10	$0	5/20
7/2 x 5/2 x 3/2	10	$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=3.5+8x+6+21&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