FOAF

FOAF (Friend Of A Friend) is a machine-readable ontology describing persons, their activities and their relations to other people and objects.

According to our data, FOAF is present on <0.001% of all websites.

Statistics based on 3.3M+ analyzed websites. About this data

📊 Rankings and Market Share

We have data on 16 websites that use FOAF.

The highest rated site using FOAF is gfoodd.com.

#	Website	Rank	Country	Language
1	gfoodd.com	#341,177	Japan	Japanese
2	socio-logic.jp	#538,634	Japan	Japanese
3	webproduct-lab.com	#581,545	Japan	Japanese
4	runstant.com	#974,563
5	xscore.co.jp	#1,226,454	Japan	Japanese
6	goutaro.com	#2,131,575	Japan	Japanese
7	tokyoseikatsu.com	#2,286,066	Japan	Japanese
8	blog.ropross.net		Japan	Japanese
9	blog.webproduct-lab.com		Japan	Japanese
10	matsue-ebisu.net		Japan	Japanese
11	kosotatu.jp		Japan	Japanese
12	kiyoichi-t.com		Japan	Japanese
13	eh-lab.com		Japan	Japanese
14	crybro.com		Japan	Japanese
15	drs-medicine.com		Japan	Japanese
16	100ninpu.com		Japan	Japanese

Most of the sites that use FOAF:

🌎 Countries📢 Languages⭐ TLDs🗃️ Domain Categories

Most of the sites using FOAF are from Japan.

Most FOAF users speak Japanese.

FOAF is especially popular on .com, .net, and .jp top-level domains.

These are some of the best FOAF alternatives.

Rank	Name
5	RSD An XML format that helps client software find the services needed to read, edit, or "work with" weblogging software.
10	XFN An HTML microformat that provides a simple way to represent human relationships using links.
13	XHTML Cambridge, Massachusetts, United States An XML-based markup language that extends HTML 4.
33	RDF Cambridge, Massachusetts, United States A W3C standard model to describe and exchange graph data on the web.
41	XRDS An XML-based file format that provides a list of service endpoints (e.g., OpenID) available on a website.

Compare FOAF to…

The majority of FOAF users are from Japan.

According to our data, FOAF is used on at least 16 sites, including such established ones as gfoodd.com, socio-logic.jp, and webproduct-lab.com.

Alternatives and possible competitors to FOAF may include RSD, XFN, and RDF.

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 3,375,483 websites.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.