🆚 IAB TCF vs. Speculation Rules
Speculation Rules is much more popular than IAB TCF.- Speculation Rules is more popular in the United States, the United Kingdom, and Germany.
IAB TCF is more popular in the British Virgin Islands.
Type
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.
The Speculation Rules API is a browser API that improves navigation performance by prefetching or prerendering pages that users are likely to visit next.
It uses 
JSON-based rules embedded in 
HTML or HTTP headers, and is designed as a successor to older techniques such as 
Prefetch and the deprecated Prerender attribute.
Headquarters
Categories
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
- 🥉 Third most popular in the British Virgin Islands in the Standards category.
- 🔥 15th most popular in Nigeria in the Standards category.
- 🔥 15th most popular in Bangladesh in the Standards category.
- 🔥 16th most popular in Spain in the Standards category.
- 🔥 16th most popular in Greece in the Standards category.
- 🥈 Second most popular in Switzerland in the Performance Optimization category.
- 🥈 Second most popular in Iran in the Performance Optimization category.
- 🥈 Second most popular in Finland in the Performance Optimization category.
- 🥈 Second most popular in Trinidad and Tobago in the Performance Optimization category.
- 🥈 Second most popular in Liechtenstein in the Performance Optimization 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.
Google company profile🗃️ 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 4,046,772 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.