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#pagespeed

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We ❤️ great people building apps that empower other folks to use our tools! The new open‑source #Magento module – from @jesperingels and the team at Bluebird Day – lets you integrate our real user monitoring into your Magento project in minutes – no coding required!

Discover the benefits of gathering real user data, plus how to get started: speedcurve.com/blog/real-user-

SpeedCurveSpeedCurve | NEW! SpeedCurve RUM for your Magento projectsIntegrate robust real user monitoring into your Magento project in minutes!

Exciting news for our Shopify customers! Now it's easy to enable RUM in your storefront – no coding or dev time required!

With the SpeedCurve RUM app – developed by our friend and Shopify expert @sia – you can:

⚡ Track metrics like Core Web Vitals
⚡ Identify and fix performance issues
⚡ Measure the impact of site speed on business metrics, like conversion rate
⚡ Fight regressions and stay ahead of page slowdowns

speedcurve.com/blog/speedcurve

SpeedCurveSpeedCurve | NEW! SpeedCurve RUM for your Shopify storeTrack Core Web Vitals, identify performance issues, measure the impact of site speed on conversion rates, and stay ahead of page slowdowns – all with no coding required.

There are SO MANY #webperf charts! If you feel overwhelmed, start with these three:

CORRELATION CHART – #sitespeed and business metrics

WATERFALL CHART – how and when elements on your page render, so you can see why pages are slow

COMPETITIVE BENCHMARKS – how fast you are compared to competitors

I talked about these charts (and a lot more!) at @webexpo recently. You can watch my talk here: slideslive.com/39043166/connec

Finally, the definitive explainer for Long Animation Frames! Not sure what Long Animation Frames (aka LoAF) are, nor why they're crucial for quantifying and optimizing the JavaScript that's hurting your user experience? This brilliant guide by @andydavies covers:

🔥 Why frame rate matters
🔥 Anatomy of a LoAF
🔥 Key LoAF milestones & what to do with milestone data
🔥 How to connect LoAF & INP data
🔥 How to get started

speedcurve.com/blog/guide-long

SpeedCurveSpeedCurve | The Definitive Guide to Long Animation Frames (LoAF)LoAF lets you identify problem scripts, quantify the impact of third-party scripts, and improve the user experience. Here's everything you need to know to get started.

Thanks again to everyone who came to my #WebExpo talk about the intersection of site speed, UX, and business metrics – and how to make a data-driven business case for investing in web performance. And thank you to Šárka and Steven for inviting me! I had a wonderful time!

My slides are up. If you have any questions or feedback, I'd love to hear from you!

speakerdeck.com/tammyeverts/co

Speaker DeckConnecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]By Tammy Everts

There's a lot to unpack with the Long Animation Frames (LoAF) API! This excellent guide from Andy Davies covers:

🎞️ Why animation frame rate matters for #webperf and #ux
🎞️ Anatomy of a LoAF
🎞️ Key LoAF milestones and what to do with milestone data
🎞️ Script attribution
🎞️ How to match script data to INP, including sub-parts
🎞️ How to capture LoAF entries
🎞️ How to get started with LoAF!

speedcurve.com/blog/guide-long

SpeedCurveSpeedCurve | The Definitive Guide to Long Animation Frames (LoAF)LoAF lets you identify problem scripts, quantify the impact of third-party scripts, and improve the user experience. Here's everything you need to know to get started.

Finally, a LoAF explainer I can understand! Thank you, @andydavies!

Historically, the biggest issue with RUM is that it captures a lot of data but it's hard to tease out what's actionable. The Long Animation Frames (LoAF) API is an evolutionary leap forward for RUM diagnostics, because it lets you find and fix the third parties and other scripts that hurt your #pagespeed and #UX. The only downside to LoAF is that it's tricky to wrap your head around.

speedcurve.com/blog/guide-long #webperf #sitespeed

SpeedCurveSpeedCurve | The Definitive Guide to Long Animation Frames (LoAF)LoAF lets you identify problem scripts, quantify the impact of third-party scripts, and improve the user experience. Here's everything you need to know to get started.

CPU consumption by the browser is one of the main causes of a poor user experience. The biggest culprit? JavaScript execution. Now you can monitor Long Animation Frames (LoAF) and fix the third parties and other scripts that are hurting your UX!

speedcurve.com/blog/long-anima

SpeedCurveSpeedCurve | NEW! Monitor Long Animation Frames and get to the bottom of your JavaScript issuesNow you can monitor Long Animation Frames (LoAFs) and fix the third parties and other scripts that are hurting your user experience!

Calculating downtime loss is pretty straightforward. For example, if your site averages $100K/hour in revenue, and you suffer a 3-hour outage, you can estimate you lost $300K.

Calculating losses due to site slowdowns isn't as simple, but you can still get an idea of what those losses might be.

Scroll down this post to find a formula you can use to estimate how site slowdowns can hurt your revenue:

speedcurve.com/blog/downtime-v

SpeedCurveSpeedCurve | Downtime vs slowtime: Which costs you more?Page slowdowns can cause as much damage as downtime, hurting revenue, brand health, and permanent abandonment rate.

A surprising number of people aren't aware that the consent banners on their pages hurt #ux and #seo. That's because consent banners delay LCP for a lot of pages.

The result? Your visitors have a slow experience, which sucks for them. And because LCP is a Google search ranking factor, it also sucks for you.

@cliff explains the most common problems – and their workarounds – with measuring #pagespeed with consent managers: speedcurve.com/blog/web-perfor

I've lost track of how many times I've struggled with slow travel sites on my phone as I've checked for airline updates or hotel check-in details. (Jet lag doesn't help!)

Unfortunately, of the ten EU/UK travel sites we track, only one site – Trivago – starts to render within 2s and has a Largest Contentful Paint time within 2.5s.

👉 Explore Page Speed Benchmarks: app.speedcurve.com/benchmarks/

👉 Track your site's speed: speedcurve.com/signup/

We ❤️ this new open‑source Magento module from @jesperingels and the team at Bluebird Day! Integrate real user monitoring into your Magento project in minutes:

github.com/bluebirdday/speedcu

🚀 Enter SpeedCurve RUM ID & the script loads automatically
🚀 Insert RUM script only after the visitor accepts cookies (privacy‑proof!)
🚀 Track Core Web Vitals & other RUM metrics
🚀 Measure impact of #webperf on your business
🚀 Fight regressions with budgets & alerts
🚀 Get diagnostics

Here's why you MUST rely on your own user data to set #pagespeed and #ux goals. Google's LCP threshold is 2.5s. Yet for this site, conversion rate peaks at 6% at 1.1s. By 2.5s, this site is on the #webperf plateau and the conversion rate has dipped way down to just 2.5%.

In other words, aiming for Google's 2.5s threshold would NOT help this site improve their business. The real goal is 1.1s.

Learn why correlation charts are your friend: speedcurve.com/blog/site-speed