keyword

history of railroad

Monthly search volume and cost-per-click data for "history of railroad" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=history+of+railroad&country=us" +--------------+------------------+ | volume | 1,600 | | cpc | $0.34 | | competition | 0 | | country | US | | updated | 2026-06-11 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
when were trains invented	4,400	$0	13/20
railroad history	1,900	$2.44	20/20
trains history	1,900	$2.44	15/20
history of railways	1,900	$2.44	14/20
history of railroads	1,600	$0.34	20/20
railways history	1,600	$0.34	16/20
history of the train	1,600	$0.34	14/20
history of the railway	1,300	$0.83	16/20
railroad us history	1,000	$0.11	14/20
railroads in american history	1,000	$0.11	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://api.seodata.dev/v1/keyword?q=history+of+railroad&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