Content Security Policy
3,691,747 websites

Content Security Policy is free to use

http://www.w3.org/TR/CSP/

Content Security Policy is best used as defense-in-depth, to reduce the harm caused by content injection attacks.

VS

Facebook Page Administration
500,743 websites

Facebook Page Administration is free to use

http://developers.facebook.com/docs/opengraph

Identifies administrators for a page which will be able publish data to your wall if you like any content within this page.

Market Share by Top Websites

1 Content Security Policy is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Facebook Page Administration is clearly lagging behind, losing to Content Security Policy in all segments.

Websites Categories

1 Content Security Policy has better usage coverage in more websites categories. Including Arts & Entertainment, Computers Electronics & Technology, Games, Science & Education and 20 other categories.

2 Facebook Page Administration hasn't got a lead over Content Security Policy in any websites category.

Geography

1 Content Security Policy is leading in most countries, including United States, United Kingdom, Germany, Japan and 162 other countries.

2 Facebook Page Administration hasn't got a lead over Content Security Policy in any country.