Smart folks depend on SpeedCurve

How to use SpeedCurve to do A/B testing – in this case, testing the impact of custom font usage on bounce rate...

We use SpeedCurve and have found it invaluable to help pinpoint potential problems along the way. The dashboards they offer around JavaScript usage and third-parties remind us to keep a record of where we’ve come from and where we need to be...

Tim walks through a demonstration of how to do A/B testing with Netlify and LUX, our RUM tool.....

In this talk, Andy shares Marks & Spencer’s performance journey, what they learned along the way, and where they plan to go from here...

In emerging markets, maintaining optimal web performance can become a challenge: varying network conditions and different device topology cause issues. Thanks to trivago's rigorous testing culture, we identified these issues in one of our key emerging markets...

French retailer LeroyMerlin shares how they use a combination of RUM and synthetic monitoring – including performance budgets and alerts – to keep their entire team up to speed...

It’s easy for a website’s performance to degrade over time. Trying to keep up with the competition through innovation rarely affords the time to tune and optimize and, often times, organizations struggle with balancing performance technical debt with their day-to-day operations...

The leading UK news website used SpeedCurve to demonstrate how they improved their 75th percentile CLS by 250% from 0.25 to 0.1...

By keeping to performance budgets throughout the entire project, we’ve produced the fastest feature-rich theme in the Shopify Theme Store...

Look, we know our sites aren’t as performant as they could be… I mean, let’s cut to the chase here... our sites are friggin’ slow, okay!..

The Financial Times explain how they cut Time To Interactive in half across their main applications while keeping the process sustainable and supportable.....

Setting performance budgets doesn’t need to be complex or confusing. You simply need some existing data, some monitoring, and to remember that budgets and targets are two different things.....

GOV.UK enabled HTTP2 and were able to measure that this significantly improved performance. They found that, for users with slower devices and connections, start render improved by 2.5 seconds and page load time by 6 seconds.....

Farfetch analyzed more than 1M pageviews and found that conversion rate decreased 2.7% for each additional second of TTI on mobile, and 2.1% on desktop.....

Ancestry.com saw a 7% increase in conversions after improving render time by 68%, page weight by 46% and load time by 64%...

We used the RUM/LUX 'blocking scripts' metric to convert our last sync script and reduced load time by 40%...

We recently started using SpeedCurve to track Unsplash’s performance. To get its “Real User Monitoring” (a.k.a. “LUX”) working with our app, we needed to do some extra work to handle client-side navigations...

Airbnb used SpeedCurve to ensure Linaria, their new CSS-in-JS library, delivered both better web performance and developer experience...

Wehkamp are using performance budgets, the Status dashboard and Slack alerts to stay on top of site changes and make sure they catch performance issues when they.....

Matt Hobbs shares a straightforward, pragmatic walkthrough of how he set up the performance monitoring dashboards – including configuring test settings and creating performance budgets and alerts – for GOV.UK.....

We made a simple code change but the impact on the wider GOV.UK codebase was significant. We changed the way the `@font-face` loading method referenced fonts...

We recently deployed a change to casper.com that loaded a piece of 3rd party JavaScript from our own server instead of the vendor’s server. This change shaved 1.7 seconds off of the start render time...

A mobile-first perspective is also a performance-first perspective at Vox Media. Dan Chilton and Guillermo Esteves talk about how they helped build a culture of performance...

When more than 20 million people use your service each month, how and when you roll out a redesign matters. When considering making a big update, we knew we had to make it better for our users not just aesthetically but also functionally...

NerdWallet shares how adopting SpeedCurve is "probably the biggest change we've made to ensure we are on top of our performance" by building "a culture that values site performance and measures it on a regular basis."..

Zillow give a blow by blow account of using SpeedCurve performance budgets to catch a rouge A/B test...

We love how SpeedCurve addresses performance budgets, which have been helping us achieve our goals...

I have regularly and loudly complained that the BBC News website is unnecessarily slow, so when I was given the opportunity to help rebuild one of the most visited pages of BBC News—the front page—I jumped at the chance...