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2023 Black Friday and Cyber Monday retail and e-commerce IT performance observations

Dynatrace

Over the years, I have watched and written about online retail and e-commerce IT performance. What I have seen is a maturing of the online retail channels when it comes to delivering customer experiences. This year we saw few, if any, major issues with online retailers. This is where many retailers have matured over the years.

Retail 221
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Ten years of page bloat: What have we learned?

Speed Curve

And if that already wasn’t enough, the number of images on a page has been linked to lower conversion rates on retail sites. Having said that, looking at data over the past ten years, it's safe to make the observation that pages are definitely trending bigger. These numbers should not be taken as a benchmark for your own site.

Mobile 145
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Cumulative Layout Shift: What it measures, when it works (and doesn't), and how to use it

Speed Curve

Back in May, we shared that SpeedCurve supports Google's Core Web Vitals in both our synthetic monitoring and LUX real user monitoring tools. Fortunately, we have the ability to do both those things in synthetic and real user monitoring (RUM). It's definitely worth a read.). What does a poor CLS score look like?

Retail 81
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An Opinionated Guide to Performance Budgets

Speed Curve

You can then configure your monitoring tools to send you alerts – or even break the build, if you're testing in your staging environment – when your budgets are violated. For each of these metrics, I've included what type of tool you can use to track them: synthetic and/or real user monitoring (RUM). Is it loading?

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A Complete Guide to Performance Budgets

Speed Curve

You can then configure your monitoring tools to send you alerts – or even break the build, if you're testing in your staging environment – when your budgets are violated. In an ideal world, pages served to mobile devices should be under 1 MB – and definitely not more than 2 MB – but I often see pages in excess of 5 MB.