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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 223
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Data Mining Problems in Retail

Highly Scalable

Retail is one of the most important business domains for data science and data mining applications because of its prolific data and numerous optimization problems such as optimal prices, discounts, recommendations, and stock levels that can be solved using data analysis methods. However, many of these models are highly parametric (i.e.

Retail 152
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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

You can dig deeper into the mechanics of how it's calculated, but the human-friendly definition is that CLS helps you understand how likely a page is to deliver a janky, unpleasant experience to viewers. Here are the current US media benchmarks on a fast desktop connection , ranked by CLS score. It's definitely worth a read.).

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. The easiest way to do this is to look at rendering filmstrips in your synthetic test data. Just FYI, I had to look up that definition.

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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.