Other items

These are other items that don't quite fit into the other categories.

Cross-domain

Cross-domain tracking has changed drastically with the new client ID and the way links are decorated. It is highly suggested you read up on Universal Analytics' cross-domain tracking. This guide will likely be updated to include this at a later date.

_trackTiming

This allows you to time how long it takes for users to do or see something on your site, measured in milliseconds.

via ga.js
_gaq.push(['_trackTiming', 'JavaScript Libraries', 'jQuery', 55]); 
via analytics.js
ga('send' ,'timing', 'JavaScript libraries', 'jQuery', 55);

_anonymizeIp

Anonymizes the information sent to Google Analytics by removing the last octet of the IP address prior to its storage.

via ga.js
_gaq.push (['_gat._anonymizeIp']);
via analytics.js
ga('set', 'anonymizeIp', true);

You can also anonymize for a single hit in analytics.js.

via analytics.js
ga('send', 'pageview', {
    'anonymizeIp': true
});