WPO Stats

Case studies and experiments demonstrating the impact of web performance optimization (WPO) on user experience and business metrics.

  • WPO Stats Icon

    Bridesmaid dress retailer Revelry relaunched its ecommerce site on an updated version of its ecommerce platform and with smaller images. The site loads 43% faster, bounce rates have decreased 8% and conversion is up 30% Permalink Share on Twitter

    #bounce rate #conversion #2020
  • Agrofy Logo

    After making improvements to multiple performance metrics (including LCP, CLS and Long Task time), Agrofy saw a 76% reduction in their abandonment rate and a significant boost in engagement. Permalink Share on Twitter

    #engagement #abandonment #2020
  • WPO Stats Icon

    SportsShoes.com found that faster-than-average mobile visits were 41% more likely to convert than slower-than-average visits. Permalink Share on Twitter

    #conversion #2020
  • WPO Stats Icon

    SnipesUSA.com decreased page load speed by 30% and saw its average conversion rate double to from 1% to 2%. Permalink Share on Twitter

    #conversion #2020
  • WPO Stats Icon

    Rossignol.com improved their load time by 1.9 seconds and cut their Speed Index by a factor of 10, contributing to a 94% improvement in conversion rate when compared to the year prior. Permalink Share on Twitter

    #conversion #2020
  • Google Logo

    A Google study over millions of page impressions found that when a site meets the recommended thresholds for the Core Web Vitals metrics, users are at least 24% less likely to abandon a page before it finishes loading. Permalink Share on Twitter

    #abandonment #2020
  • ALDO Logo

    ALDO found that on their single-page app, mobile users who experienced fast rendering times brought 75% more revenue than average, and 327% more revenue that those experiencing slow rending times. on desktop, users with fast-rendering times brought in 212% more revenue than average and 572% more than slow. Permalink Share on Twitter

    #revenue #conversion #2020
  • Google Logo

    When Google Search started using speed as a (very small) ranking signal, they saw a 15%-20% improvement in user-centric perf metrics of pages loaded from search results and a 20% reduction in abandonment. Permalink Share on Twitter

    #abandonment #search #2019
  • WPO Stats Icon

    Radins.com improved their Speed Index by 51% for the desktop experience and saw a significant increase in conversion (+12%) and a drop in the bounce rate (-25%). Permalink Share on Twitter

    #seo #conversion #bounce rate #2018
  • WPO Stats Icon

    Furnspace reduced their image payload by 86% resulting in a reduction in load time of 65%. This improved user experience helped double Furnspace’s eCommerce purchase conversion ratio, cut bounce rates by 20%, increase mobile revenue by 7% and dramatically improve SEO. Permalink Share on Twitter

    #seo #conversion #bounce rate #revenue #2018
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Hungry for more?

If you're looking for more resources around selling performance, we recommend the following resources:

  • Time is Money book cover

    Time is Money by Tammy Everts

    Tammy's book has study after study after study about why performance matters. She covers not just the business side of things, but also the psychology of performance: how does bad performance make users feel.
  • Designing for Performance book cover

    Designing for Performance by Lara Hogan

    Lara's book is loaded with great information about advocating for performance within your organization.
  • Path to Performance Logo

    Path to Performance Podcast hosted by Katie Kovalcin and Tim Kadlec

    The Path to Performance was a podcast dedicated to helping people figure out how to cultivate a culture of performance within their organizations.

Help make WPO Stats better by submitting your favorite performance case study.

@2020. A Tammy Everts and Tim Kadlec production.