Market Share by Top Websites

1 X-UA-Compatible is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 Despite its recent growth, P3P Policy is still behind X-UA-Compatible in all market share segments.

Websites Categories

1 X-UA-Compatible has better usage coverage in more websites categories. Including Arts & Entertainment, Business & Industry, People & Society, Shopping and 241 other categories.

2 P3P Policy hasn't got a lead over X-UA-Compatible in any websites category.


1 X-UA-Compatible is leading in most countries, including United States, Russia, Germany, Japan and 217 other countries.

2 P3P Policy is leading in Korea Republic, Mayotte and Vatican City.