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keyword

penelope douglas books

Monthly search volume and cost-per-click data for "penelope douglas books" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=penelope+douglas+books&country=us" +--------------+------------------+ | volume | 9,900 | | cpc | $0.32 | | competition | 0.34 | | country | US | | updated | 2026-06-15 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
penelope douglas author 22,200 $0.45 17/20
penelope douglas 22,200 $0.34 16/20
books by penelope douglas 6,600 $0.44 11/20
penelope douglas book 6,600 $0.32 11/20
penelope douglas books in order 1,300 $0.21 20/20
penelope douglas books series 170 $0.14 15/20
penelope douglas book series 170 $0.14 13/20
penelope douglas reading order 170 $0 12/20
penelope douglas books for sale 140 $0.07 11/20
penelope douglas series in order 30 $0.02 14/20

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=penelope+douglas+books&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