seodata.dev

keyword

hardest crossword puzzle in the world

Monthly search volume and cost-per-click data for "hardest crossword puzzle in the world" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=hardest+crossword+puzzle+in+the+world&country=us" +--------------+------------------+ | volume | 30 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-03-31 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
hardest crossword puzzle 6,600 $1.92 10/20
hardest crossword puzzles 5,400 $2.78 12/20
most difficult crossword puzzle 2,400 $0.74 9/20
hardest crossword 2,400 $1.24 8/20
most difficult crossword puzzles 2,400 $0.74 7/20
difficult crossword clue 1,300 $0 7/20
which crossword is the hardest 50 $0 9/20
world's hardest crossword puzzle 30 $0 15/20
world's hardest crossword 30 $0 12/20
toughest crossword puzzles 30 $0 10/20

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=hardest+crossword+puzzle+in+the+world&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