keyword

four types of membranes

Monthly search volume and cost-per-click data for "four types of membranes" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=four+types+of+membranes&country=us" +--------------+------------------+ | volume | 40 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-21 | +--------------+------------------+

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
cutaneous membrane	4,400	$0	10/20
epithelial membranes	880	$0	8/20
epithelial tissue membranes	880	$0	8/20
4 types of membranes in the body	90	$0	11/20
how many types of membranes are found in the body	90	$0	10/20
4 types of membranes	70	$0	12/20
epithelial membrane types	70	$0	9/20
3 types of membranes	50	$0	9/20
4 types of body membranes	40	$0	10/20
what is a body membrane	30	$0	9/20

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=four+types+of+membranes&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