The E-Commerce Benchmark KPI Study: The Most Valuable Online Consumer Trend of 2018 Revealed [Video]


The latest Wolfgang E-Commerce Report is now live. This study gives a comprehensive view of the state of digital marketing in retail and travel, allowing digital marketers to benchmark their 2018 performance and plan their 2019 strategy.

The study analyzes over 250 million website sessions and more than €500 million in online revenue. Google Analytics, new Facebook Analytics reports, and online surveys are used to glean insights.

Revenue volume correlations

One of the unique features of the study is its conversion correlation. All website metrics featured in the study are correlated with conversion success to reveal what the most successful websites do differently.

This year we’ve uncovered our strongest success correlation ever at 0.67! Just to give that figure context: normally, 0.2 is worth talking about and 0.3 is noteworthy. Not only is this correlation with success very strong, the insight itself is highly actionable and can become a pillar of your digital marketing strategy.

And the stand out metric is (drumroll, please!)…

Number of sessions per user.

To put it plainly, the websites that generate the most online revenue have the highest number of sessions per user over 12 months. Check out the video below to get a detailed explanation of this phenomenon:


Video transcript available below

These are the top factors that correlated with revenue volume. You can see the other correlations in the full study.

Click to see a bigger version

  • Average pages per session (.37)
  • Average session length (.49)
  • Conversion rate by users (.41)
  • Number of sessions per user (.67)
  • Percentage of sessions from paid search (.25)

Average website engagement metrics







Number of sessions per user Average pages per session Average session duration Bounce rate Average page load time Average server response time
Retail 1.58 6 3min 18sec 38.04% 6.84 1.02
Multi-channel 1.51 6 3min 17sec 35.27% 6.83 1.08
Online-only 1.52 5 3min 14sec 43.80% 6.84 0.89
Travel 1.57 3 2min 34sec 44.14% 6.76 0.94
Overall 1.58 5 3min 1sec 41.26% 6.80 0.97

Above are the average website engagement metrics. You can see the average number of sessions per user is very low at 1.5 over 12 months. Anything a digital marketer can do to get this to 2, to 3, and to 4 makes for about the best digital marketing they can do.

At Wolfgang Digital, we’ve been witnessing this phenomenon at a micro-level for some time now. Many of our most successful campaigns of late have been focused on presenting the user with an evolving message which matures with each interaction across multiple media touchpoints.

Click through to the Wolfgang E-Commerce KPI Report in full to uncover dozens more insights, including:

  • Is a social media engagement more valuable than a website visit?
  • What’s the true value of a share?
  • What’s the average conversion rate for online-only vs multi-channel retailers?
  • What’s the average order value for a hotel vs. tour operator?

Video Transcript

Today I want to talk to you about the most important online consumer trend in 2018. The story starts in a client meeting about four years ago, and we were meeting with a travel client. We got into a discussion about bounce rate and its implication on conversion rate. The client was asking us, “could we optimize our search and social campaigns to reduce bounce rate?”, which is a perfectly valid question.

But we were wondering: Will we lower the rate of conversions? Are all bounces bad? As a result of this meeting, we said, “You know, we need a really scientific answer to that question about any of the website engagement metrics or any of the website channels and their influence on conversion.” Out of that conversation, our E-Commerce KPI Report was born. We’re now four years into it. (See previous years on the Moz Blog: 2015, 2016, 2017.)

The metric with the strongest correlation to conversions: Number of sessions per user

We’ve just released the 2019 E-Commerce KPI Report, and we have a standout finding, probably the strongest correlation we’ve ever seen between a website engagement metric and a website conversion metric. This is beautiful because we’re all always optimizing for conversion metrics. But if you can isolate the engagement metrics which deliver, which are the money-making metrics, then you can be much more intelligent about how you create digital marketing campaigns.

The strongest correlation we’ve ever seen in this study is number of sessions per user, and the metric simply tells us on average how many times did your users visit your website. What we’re learning here is any digital marketing you can do which makes that number increase is going to dramatically increase your conversions, your revenue success.

Change the focus of your campaigns

It’s a beautiful metric to plan campaigns with because it changes the focus. We’re not looking for a campaign that’s a one-click wonder campaign. We’re not looking for a campaign that it’s one message delivered multiple times to the same user. Much more so, we’re trying to create a journey, multiple touchpoints which deliver a user from their initial interaction through the purchase funnel, right through to conversion.

Create an itinerary of touchpoints along the searcher’s journey

1. Research via Google

Let me give you an example. We started this with a story about a travel company. I’m just back from a swimming holiday in the west of Ireland. So let’s say I have a fictional travel company. We’ll call them Wolfgang Wild Swimming. I’m going to be a person who’s researching a swimming holiday. So I’m going to go to Google first, and I’m going to search for swimming holidays in Ireland.

2. E-book download via remarketing

I’m going to go to the Wolfgang Wild Swimming web page, where I’m going to read a little bit about their offering. In doing that, I’m going to enter their Facebook audience. The next time I go to Facebook, they’re now remarketing to me, and they’ll be encouraging me to download their e-book, which is a guide to the best swimming spots in the wild west of Ireland. I’m going to volunteer my email to them to get access to the book. Then I’m going to spend a bit more time consuming their content and reading their book.

3. Email about a local offline event

A week later, I get an email from them, and they’re having an event in my area. They’re going for a swim in Dublin, one of my local spots in The Forty Foot, for example. I’m saying, “Well, I was going to go for a swim this weekend anyway. I might as well go with this group.” I go to the swim where I can meet the tour guides. I can meet people who have been on it before. I’m now really close to making a purchase.

4. YouTube video content consumed via remarketing

Again, a week later, they have my email address, so they’re targeting me on YouTube with videos of previous holidays. Now I’m watching video content. All of a sudden, Wolfgang Wild Swimming comes up. I’m now watching a video of a previous holiday, and I’m recognizing the instructors and the participants in the previous holidays. I’m really, really close to pressing Purchase on a holiday here. I’m on the phone to my friend saying, “I found the one. Let’s book this.”

Each interaction moves the consumer closer to purchase

I hope what you’re seeing there is with each interaction, the Google search, the Facebook ad which led to an e-book download, the offline event, back online to the YouTube video, with each interaction I’m getting closer to the purchase.

You can imagine the conversion rate and the return on ad spend on each interaction increasing as we go. This is a really powerful message for us as digital marketers. When we’re planning a campaign, we think about ourselves as though we’re in the travel business too, and we’re actually creating an itinerary. We’re simply trying to create an itinerary of touchpoints that guide a searcher through awareness, interest, right through to action and making that purchase.

I think it’s not just our study that tells us this is the truth. A lot of the best-performing campaigns we’ve been running we’ve seen this anecdotally, that every extra touchpoint increases the conversion rate. Really powerful insight, really useful for digital marketers when planning campaigns. This is just one of the many insights from our E-Commerce KPI Report. If you found that interesting, I’d urge you to go read the full report today.

Please feel free to share your thoughts and questions in the comments section below!



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