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keyword

hardest crossword clue

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

$ curl "https://app.seodata.dev/v1/keyword?q=hardest+crossword+clue&country=us" +--------------+------------------+ | volume | 260 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-26 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
hardest crossword puzzle 6,600 $1.92 5/20
hardest crossword puzzles 5,400 $2.78 5/20
most difficult crossword puzzle 2,400 $0.74 5/20
difficult crossword clue 1,300 $0 10/20
crossword clue for difficult 1,300 $0 7/20
crossword clue difficult 1,300 $0 5/20
difficult crossword 390 $0 8/20
hard crossword clues 390 $0 7/20
hard crossword clue 260 $0 6/20
difficult word crossword 90 $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/keyword?q=hardest+crossword+clue&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