keyword

opt in opt out

Monthly search volume and cost-per-click data for "opt in opt out" in US.

$ curl "https://app.seodata.dev/v1/search-volume?q=opt+in+opt+out&country=us" +--------------+------------------+ | volume | 1,000 | | cpc | $3.47 | | competition | 0.02 | | country | US | | updated | 2026-03-31 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
opt out	14,800	$8.83	19/20
opt-out	14,800	$8.08	17/20
opt in out	14,800	$2.76	13/20
opt-in	4,400	$8.63	15/20
opt in	4,400	$7.08	14/20
opt-in opt-out	1,000	$3.47	20/20
opt in versus opt out	480	$0	13/20
opt-out opt-in	90	$0	14/20
opt in or opt out	90	$0	13/20
opt out or opt in	90	$0	13/20

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/search-volume?q=opt+in+opt+out&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