Predictive prefetch & other JavaScript performance hacks.

No images? Click here

Hey there!

We've got more performance insights! 🏎🚀😍

Everything from predictive prefetching, to cutting down JavaScript bytes and the 14 golden rules to faster loading websites.

Check out our latest tech talks below:

Predictive Prefetching

Some of the most cutting edge and effective web performance optimizations, like prefetch and preconnect, involve being proactive. The problem is knowing where a user is likely to go next. This is where machine learning comes in handy. In a fascinating talk using analytics data, you’ll learn how to take the guesswork out of predictions and more accurately load resources ahead of time – making predictive prefetching a reality.

When JavaScript Bytes

JavaScript is, byte-for-byte, the most expensive resource on the web and we’re using more of it than ever in our sites. But what do you do if you’re already staring down a pile of scripts? In this talk, we’ll discuss practical ways to reduce the amount of JavaScript we’re sending down to the people using our sites, techniques for shaving excess bytes off our bundles and, just as critically, tools and approaches we can use to make sure those bytes stay off.

The 7 Habits of Highly Effective Performance Teams

Over the past year, Tammy has talked with companies of all types – retail, media, travel, software, and more – and all sizes – from SMBs to huge enterprises. She was inspired to see how different organizations approach creating a robust performance culture. In her talk, Tammy will share tips and best practices gleaned from scores of conversations with people and companies who are leading the way down the path to performance.

performance.now().reject(reasons)

We’ve been at this make-performance-happen-now game for over a decade but the progress is slow. Optimizing images, critical path, etc. is a struggle; inconsistent adoption of HTTP/2 priorities signals industry hurdles we didn’t account for; we’re back at the drawing board with prefetch and prerender. What are the reasons, and what can we do to improve our odds as we head into the new decade? Let’s talk.

Observability is for User Happiness

99.999% server uptime is a pointless goal if customers aren’t happy. But how do you know if users are happy? In this talk, Emily shares how observability has changed the way her team thinks about performance instrumentation and optimization, and how they’ve fixed some of its trickiest performance issues, optimized customer productivity, and used the data to drive the design of new features.

A Decade of Disciplined Delivery

It’s been a decade since Steve Sounders wrote the 14 rules to faster loading websites, and since then, not only has speed matured, but so has the idea of speed itself. This talk will take a curious retrospective look at how the 14 rules apply today in 2019 in our quest to deliver and load resources as quickly as possible.

Lessons learned from performance monitoring in Chrome

Annie has done a lot of work on performance metrics and monitoring for Chrome over the past several years. She’ll talk about what she’s learned in that time, and how it can be applied to web site performance monitoring. She will cover performance metric and benchmark design, dealing with benchmark noise in the lab, and understanding the subtleties of RUM data.

Happy Learning!

The SitePoint Team