keyword

old route 66

Monthly search volume and cost-per-click data for "old route 66" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=old+route+66&country=us" +--------------+------------------+ | volume | 4,400 | | cpc | $1.95 | | competition | 0.03 | | country | US | | updated | 2026-06-14 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
highway 66	246,000	$1.88	16/20
route 66	246,000	$1.93	15/20
route 66 map	60,500	$0.42	14/20
us route 66	14,800	$1.81	18/20
where is route 66	5,400	$0.69	20/20
historic route 66	5,400	$3.22	19/20
where does route 66 begin	2,400	$0.75	14/20
start of route 66	1,600	$3.51	14/20
us 66	1,300	$4.29	17/20
original route 66	590	$5.21	15/20

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=old+route+66&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