Problem

On the classical website with many pages, we can evaluate user engagement with metrics like Avg. Session Duration or Pages / Session.

But one-page websites are still popular.

And since the website has only one page, both metrics are useless (because Session Duration is calculated as time between two consecutive pageviews).

One-page websites have usually section like: Intro, Product Features, Gallery, Contacts.

Instead of tracking pageviews we can track section views. I.e. how many visitors scrolled to the specific section.

Solution

Then we can track this information as a Google Analytics pageview or an event.

In Google Analytics All Pages report we will see the page sections instead of real pages. Therefore metrics Avg. Session Duration or Pages / Session will be based on these pageviews.

Or we can record section views as Google Analytics events.

How?

We need:

  1. In HTML code of the one-page website, sections must have their own specific HTML IDs, e.g. <div id=”contacts”>.
  2. Google Tag Manager installed on the website.

There are several ways how you can catch when a user scrolls to a section and send it to Google Analytics. The solution below uses a custom javascript that does the crucial part of the magic.
It sends Google Tag Manager event every time a section (defined by CSS selector) is reached.

The section should have their own HTML IDs like section-intro, section-features, section-technology, section-privacy. Or you can track reaching unique page elements like footer.

You can

Or you can use ready-made GTM container that has this functionality (and much more) built in. This means you just specify HTML ID of your sections. It can look like this:

gascrolldepth.init({
minHeight: 0,
elements: ["#section-intro", "#section-features", "#section-technology", "#section-privacy", "footer" ],
percentage: true,
nonInteraction: true,
gaGlobal: false,
gtmOverride: false
});

Alternatively (without the script above), you can use built-in GTM Visibility trigger or ready-made solution which is part of the Advanced Analytics Setup Bundle.

Web Analytics Enthusiast & Consultant

Connecting technical (IT, web development) & on-line marketing people.

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