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Site-Speed Topography

CSS Wizardry

When first working on a new site-speed engagement, you need to work out quickly where the slowdowns, blindspots, and inefficiencies lie. Google Analytics can show us individual slow pages, but doesn’t necessarily help us build a bigger picture of the site as a whole. See entry 6. For example, my site has a homepage, content pages (e.g.

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The psychology of site speed and human happiness

Speed Curve

In the fourteen years that I've been working in the web performance industry, I've done a LOT of research, writing, and speaking about the psychology of page speed – in other words, why we crave fast, seamless online experiences. In fairness, that was in the early 2000s, and site speed was barely on anyone's radar.

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User-centric Metrics Matter to Ecommerce. Start with These Five.

Rigor

Reading Time: 8 minutes Whether your ecommerce business is 100% online or you supplement with bricks and mortar, your website is a critical revenue driver. But if you’re a performance expert working in ecommerce, you’re looking at the performance of your site. Why Are User-centric Metrics Essential for Ecommerce?

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Why you need to know your site's performance poverty line (and how to find it)

Speed Curve

Poverty lines emerged for both Start Render and Largest Contentful Paint I expected the results for Start Render, as it's been around as a page speed metric for many years, and has been proven to correlate to business metrics. The blue bar represents the change in bounce rate across all cohorts. Ultimately, this is good for your business.

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Does Interaction to Next Paint actually correlate to user behavior?

Speed Curve

Earlier this year, Google announced that Interaction to Next Paint (INP) is no longer an experimental metric. For a more detailed explainer of INP – including a breakdown of what's in an interaction, how INP is calculated and more – see this post by Jeremy Wagner from the Google Chrome team. What is a 'good' INP number?

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Google Lighthouse vs Rigor

Rigor

One free tool has become prominent in the space – Google Lighthouse – and one question often bubbles up: “I use Google Lighthouse for one-off snapshots of my site’s performance, so why do I need a performance monitoring solution?” Where Google Lighthouse Shines Bright.

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eCommerce & Retail: There’s No Excuse to Ignore Performance

Rigor

Whether it be time, money, or technical know how, every day we talk to eCommerce and Retail teams who explain why they aren’t monitoring their site’s performance. Since our team is preparing for eTail West , there is no better time to address some of the common objections I’ve seen when talking to eCommerce and Retail teams about performance.