🆚 IAB TCF vs. XHTML

Compare technologies based on real-world usage data *

📈 XHTML is four times more popular than IAB TCF.
🌎 XHTML is more popular in the United States, Japan, and Germany.
🌍 IAB TCF is more popular in the British Virgin Islands, Bangladesh, and Nigeria.

IAB TCF

XHTML

Type

Standard

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.

Extensible HyperText Markup Language (XHTML) is an XML-based markup language that extends HTML 4.

Headquarters

Brussels, Belgium

Cambridge, Massachusetts, United States

Website

iabeurope.eu #636,075

w3.org/TR/xhtml1/ #12,884

Popularity

Determined by the number of sites using each technology.

XHTML is 4 times more popular than IAB TCF.

Total websites

Market share

Standards

Popularity by country

Determined by the number of sites detected from each country.

XHTML is more popular in the United States, Japan, and Germany, while IAB TCF is more popular in the British Virgin Islands, Bangladesh, and Nigeria.

United States

Japan

Germany

China

United Kingdom

France

Russia

Italy

Spain

Poland

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.

🥉 Third most popular in China in the Standards category.
🥉 Third most popular in Brunei Darussalam in the Standards category.
⭐ 4th most popular in Korea in the Standards category.
⭐ 6th most popular in Hong Kong in the Standards category.
⭐ 8th most popular in the British Virgin Islands in the Standards category.

Popularity by domain category

Determined by the number of sites in each category.

XHTML is more popular among sites focused on business, marketing and merchandising, and entertainment, while IAB TCF is more commonly used on blogs and wiki, general news, and sports sites.

Business

Blogs/Wiki

Marketing/Merchandising

Entertainment

Education/Reference

General News

Internet Services

Online Shopping

Sports

Software/Hardware