seodata.dev

keyword

when is sunday

Monthly search volume and cost-per-click data for "when is sunday" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=when+is+sunday&country=us" +--------------+------------------+ | volume | 1,300 | | 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
what is the first day of the week 12,100 $0 11/20
is sunday the first day of the week 5,400 $0 16/20
sunday is the first day of the week 4,400 $0 12/20
what day is monday 4,400 $0 12/20
when does the week start 2,400 $0 13/20
when does week start 2,400 $0 13/20
when is monday 1,600 $0 13/20
what day is next sunday 1,300 $0 15/20
what is sunday's date 480 $0 12/20
sunday first day of the week 390 $0 13/20

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=when+is+sunday&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