🆚 IAB TCF vs. XFN
- 📈 XFN is much more popular than IAB TCF.
- 🌎 XFN is more popular in the United States, Germany, and the United Kingdom.
- 🌍 IAB TCF is more popular in the British Virgin Islands.
IAB TCF
XFNType
About
The Transparency & Consent Framework (TCF) is an open-source industry standard developed by IAB Europe that helps companies comply with GDPR and ePrivacy requirements when processing personal data in digital advertising ecosystems.
It defines technical specifications and policies for collecting and communicating user consent choices, standardizes how these preferences are shared between publishers, advertisers, and CMPs, maintains a centralized list of approved vendors, and ensures transparency by giving users clear control over how their data is used.
XHTML Friends Network (XFN) is an 
HTML microformat that represents human relationships by adding relationship metadata to hyperlinks between websites and profiles.
It defines a set of standardized link relationship values such as friend, colleague, spouse, and acquaintance through the HTML "rel" attribute, and may be used by blogs, social networks, and personal websites to describe social connections in a machine-readable format.
Headquarters
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Awards
- ⭐ 5th most popular in the British Virgin Islands in the Standards category.
- 🔥 13rd most popular in Nigeria in the Standards category.
- 🔥 13rd most popular in Bangladesh in the Standards category.
- 🔥 13rd most popular in Albania in the Standards category.
- 🔥 14th most popular in France in the Standards category.
- ⭐ 6th most popular in Bhutan in the Standards category.
- ⭐ 6th most popular in Sierra Leone in the Standards category.
- ⭐ 7th most popular in Iran in the Standards category.
- ⭐ 7th most popular in Nigeria in the Standards category.
- ⭐ 7th most popular in Kenya in the Standards category.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
CSS
JSON
XHTML🗃️ About This Data
- 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 3,511,995 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.