Universal Language Selector/Analytics

Analytics Requirement

 * Impact on the number of visitors for languages for which ULS no longer provides webfonts:
 * traffic data from before and after Jan 21 i.e. before and after webfonts were disabled.


 * Number of users who enabled ULS using the uls-enable preference from Special:Preferences:
 * collected for each wiki
 * data from Jan 21, 2014 onwards


 * Impact on traffic that originated from Wikipedias due to the webfonts:
 * Number of bits that are delivered for fonts during a given period
 * Time period - yet to be determined


 * Percentage of content in mixed scripts in Wikipedia pages
 * For scripts supported via ULS
 * Also nature and prominence of content (e.g. is it in the first sentence? Is it in brackets? Is it in a language template?)


 * Number of users who were unable to view content
 * Tofu-detection algorithm (in progress) can be used to determine when users lacked a font for content display
 * Following can be logged:
 * Which language were they trying to display?
 * Which site were they viewing?
 * Browser and platform was was used by them (false positives can be identified by attempting to reproduce the user's environment)


 * Were users on a Wikipedia of a language limited support able to click through the the links?
 * Assumption: if they could clicked links, they may have been able to read them.
 * Comparison for the period before and after webfonts.


 * Cross-language searches made using the Wikipedia search box
 * In-depth analysis of the traffic:
 * Per site.
 * Do webfonts enabled by default on a non-English Wikipedia impact the English Wikipedia adversely?