seodata.dev

keyword

photonics textbook

Monthly search volume and cost-per-click data for "photonics textbook" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=photonics+textbook&country=us" +--------------+------------------+ | volume | 90 | | cpc | $0.22 | | competition | 0.57 | | country | US | | updated | 2026-06-03 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
fundamentals of photonics book 260 $0.95 6/20
fundamental of photonics 260 $0.95 5/20
fundamentals of photonics 260 $0.67 5/20
fundamentals of photonics saleh 260 $0.95 4/20
photonics books 90 $0.22 9/20
photonics textbooks 70 $0.44 11/20
photonics book 70 $0.44 10/20
fundamentals of photonics pdf 50 $0 6/20
fundamentals of photonics saleh and teich 30 $0 4/20
saleh and teich 30 $0 4/20

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=photonics+textbook&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