seodata.dev

keyword

sullen

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

$ curl "https://app.seodata.dev/v1/keyword?q=sullen&country=us" +--------------+------------------+ | volume | 40,500 | | cpc | $0.21 | | competition | 0.31 | | country | US | | updated | 2026-06-13 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
sullenly definition 18,100 $0 12/20
define sullen 14,800 $0 14/20
sullen definition 14,800 $0 14/20
definition of sullen 14,800 $0 12/20
sullen meaning 12,100 $0 14/20
sullen clothing 9,900 $0.27 18/20
sullen art collective 2,900 $0.23 14/20
sullen shirts 2,400 $0.97 13/20
sullen t-shirts 2,400 $0.97 13/20
sullen t shirt 2,400 $0.97 12/20

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=sullen&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