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13-implement-google-analytics.md

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Implement Google Analytics

This describes how to work with Google Analytics (GA)

Hints

Always discuss the reporting requirements with data solutions and google analytics teams before you implement any new dimensions.

Talk to the mobile apps team early, things can be a slightly different once you take their needs into account (eg: web pages vs app screens)

Dashboards

Page View tracking

The main entry point for google pageview tracking is in analytics/base.scala.html

We are careful about how many tracking events we push to the GA test so only send 5% of traffic to the test account. In your local environment we are sending 100% to make development easier.

We implement the standard async GA tracking

We then send through all the custom dimensions to GA.

All of our custom dimensions are hit scoped (scopes are user, session or hit) apart from dimension15(identityId) and dimension2(ophanBrowserId) which is a user scoped

Data dictionaries

We maintain documentation that describes all the custom dimensions, events and metrics used within GA

Events

Media Events

The main entry point for Media (Video and Audio) tracking is video/events.js

This is an example of the media event using the following custom dimensions

    var fieldsObject = {
        eventCategory: category,
        eventAction: action,
        eventLabel: canonicalUrl,
        dimension19: mediaEvent.mediaId,
        dimension20: playerName
    };
    // Increment the appropriate metric based on the event type
    var metricId = metrics[mediaEvent.eventType];
    if (metricId) {
        fieldsObject[metricId] = 1;
    }

and the following custom metrics

    var events = {
        'play': 'metric1',
        'skip': 'metric2',
        'watched25': 'metric3',
        'watched50': 'metric4',
        'watched75': 'metric5',
        'end': 'metric6'
    };

Incrementing metrics in this way is done to give a truer account of the actions that are happening on the video. Out of the box it would give a session level interaction, not a hit level.

Click Events

The main entry point for click tracking is analytics/interaction-tracking.js

The click actions currently being tracked are:

  • In-page clicks (opening nav) that don't cause page load
  • Internal clicks (navigating to another internal page on gu.com)
  • External clicks (going to another domain)
  • Clicks on sponsors' logos (regardless of destination)
  • Clicks on native ads

interaction-tracking.js is an abstraction over the top of clickstream.js that sends the events to both Omniture and Google.

TODO:

  • When Omniture is removed:
    • Re-implement delay when clicking external links which is currently handled by the omniture JS
    • Re-implement the deletion of session storage which is tracked between pages

Discussion Events

The comments event is a custom event defined in analytics/discussion

Most discussion events can be tracked with click events so the only GA custom event for discussion is for 'scroll'.

The custom category for tracking a user scrolling to the comments is element view with an action of onpage item and a label of scroll to comments.

404 pages

Check chris's PR for implementation details

AMP

Main entry point for AMP analytics is amp/googleAnalytics.scala.html