seodata.dev

keyword

systems and control letters

Monthly search volume and cost-per-click data for "systems and control letters" in US.

$ curl "https://app.seodata.dev/v1/search-volume?q=systems-and-control-letters&country=us" +--------------+------------------+ | volume | 140 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-03-30 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
ieee control systems letters 170 $0 4/20
systems & control letters 140 $0 20/20
system and control letters 140 $0 18/20
system control letters 140 $0 15/20
systems control letters 140 $0 12/20
l-css 110 $0 3/20
ieee lcss 50 $0 4/20
control letters 40 $0.1 11/20
control letter 40 $0.1 4/20
ieee control systems letters impact factor 30 $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/search-volume?q=systems-and-control-letters&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