We're excited to announce that we've launched Last Painted Hero as an official metric. Last Painted Hero is a synthetic metric that shows you when the last piece of critical content is painted. Keep reading to learn how Last Painted Hero works, why (and how) we created it, and how it can help you understand how your users perceive the speed of your pages.
When choosing the right performance metric, my soapbox for the last few years has been "not every pixel has the same value". In other words, rather than chase dozens of different performance metrics, focus on the metrics that measure what's critical in your page.
Here at SpeedCurve, we think it's good to focus on rendering metrics, because they're a closer approximation to what the user experiences. There are some good rendering metrics out there, like start render and Speed Index, but the downside to these metrics is that they give every pixel the same value. For example, if the background renders and some ads render, that could improve your start render time and Speed Index score, but it might not have a big impact on the user's experience. Instead, it's better to measure the parts of the page that matter the most to users. We call those parts of the page the "hero elements".
We're excited to announce that SpeedCurve is partnering with Tim Kadlec to provide consulting services to our customers!
Tim is a recognized expert when it comes to web performance. He has spoken at numerous conferences including Velocity, Fluent, QCon, SmashingConf, Beyond Tellerand, and WebStock. He wrote High Performance Images and Implementing Responsive Design, as well as contributing to other books. Mark, Tammy and I have each collaborated with Tim on side projects. We're full of gleeful anticipation as we look forward to this opportunity to work together again.
In the first sentence I mentioned that this is a partnership. Here's what that means: Tim will continue to do consulting outside of SpeedCurve, and if you're not a SpeedCurve customer we encourage you to contact him directly. Tim will also be running SpeedCurve's consulting services. This partnership brings special advantages to SpeedCurve customers:
We're excited to announce SpeedCurve's RUM product, LUX.
The name LUX is a play on "Live User eXperience" and reflects how we've taken a different approach compared to other Real User Monitoring products. SpeedCurve's mission is to help designers and developers create joyous, fast user experiences. To do that, we focus on metrics that do a better job of revealing what the user's experience is really like.
In addition to standard RUM metrics like page load time and total size, LUX includes innovative new metrics that have more to do with the user experience like start render time, number of critical blocking resources, images above the fold, and viewport size. LUX's RUM metrics help you figure out which design and development improvements will make your users happier and your business more successful.