Performance Engineering

Pagespeed - the Need for Speed in eCommerce

Discover how 200+ of the top retail brands are performing on pagespeed and find out how you can drive more traffic and conversions with website optimisation.

For online retailers, a slow loading website can be disastrous. Poor online performance can cause significant issues affecting the overall customer experience.

The longer your page takes to load, the higher the chance that a customer will leave the site. As well as reputational damage, that poor user experience can result in fewer conversions and a loss of revenue.

Our Pagespeed Leaderboard

We looked at the retail sector of UK eCommerce to test how pagespeed varied from site to site. We analysed a number of data points and metrics to calculate the score including:

  • Page load time
  • JavaScript execution time
  • Content size
  • Caching
  • Image scaling
  • Google web vitals

Excellent (76-100)

There is a strong focus on performance within the organisation, users will benefit from good page load times and SEO will be high.

Fair (50-75)

Evidence of some best practice being applied but still many areas for improvement.

Requires Improvement (0-49)

Some basic performance techniques being missed and a significant impact on user experience

How we measure pagespeed

We base our pagespeed index on 35 unique data points. These criteria are used to weigh, score and rank website performance across UK eCommerce.

Factors that affect performance constantly shift. This process is heuristic; changing based on the live data we obtain from companies we’re tracking. As such, we’re committed to updating and iterating our 35 criteria as we progress.

Pagespeed Index Leaderboard

Choose a sector to see the data

View and compare website pagespeed across different sectors and companies.

How to improve performance

There are some simple steps you can take to improve pagespeed performance and deliver some quick wins.

Read the e-Book

Every second counts
Speed is an increasing unit of strength in eCommerce. A strong focus on website performance within the organisation will result in good page load times, increased customer satisfaction and superior SEO.

Read now

Book a consultation

There are some simple steps you can take to improve pagespeed performance and deliver some quick wins.