keyword

18c

Monthly search volume and cost-per-click data for "18c" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=18c&country=us" +--------------+------------------+ | volume | 22,200 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
18c mos	880	$0	10/20
army 18c	590	$4.72	11/20
18c army	590	$0	10/20
special forces engineer sergeant	140	$0	10/20
special forces engineering sergeant	140	$2.75	10/20
special forces 18c	90	$0	11/20
18c special forces	90	$0	10/20
mos 18c	90	$0	10/20
18c mos army	50	$0	11/20
special forces engineer sergeant 18c	30	$0	11/20

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=18c&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