ConfPad

Tim is a performance consultant, trainer and developer focused on building a web everyone can use. He is the author of High Performance Images (O'Reilly, 2016) and Implementing Responsive Design: Building sites for an anywhere, everywhere web (New Riders, 2012), and was a contributing author for Smashing Book #4: New Perspectives on Web Design (Smashing Maga…

In July 2017, Pinterest formed its first-ever dedicated web performance team. In this talk I will discuss how the performance team got off the ground, set goals, built tools, and made performance a priority at Pinterest.Topics will include building a regression testing and investigation framework, finding the biggest optimization wins in our codebase, making…

At FT we built one of the world's fastest media websites, and release to production dozens of times a day. But the architectural and organisational decisions aimed at allowing us to deliver reliable features quickly and consistently don't always fit neatly with the desire to optimise performance.In this warts-and-all talk, you'll learn:how we build FT.comhow…

As Timbo said, the web is supposed to be for everyone. So why isn't it, and how can we get the web to more people? Seren Davies and Bruce Lawson, the web's very own Harry and Meghan, will reveal more.

How do 3G and 4G connection speeds differ across countries? What is the effect of 301 redirect on user experience, and thus on conversion rate? These are some of the questions connecting web performance to UX and business metrics that we will be looking at in this talk.HTTP archive, although very useful, consists of data points that constitute what is known …

Web Performance has always been a term used in business that has many meanings. After finally being able to show a direct correlation between webpage load time and impact on e-commerce conversion Nbrown has brought web performance to the centre of the N brown road map. This talk will take you through our journey from an IT metric to a company-wide focus.

Let's break down what makes up a PWA (progressive web app). Then build one ourselves; looking at what tools we can use to help save time making them and what performance benefits they can bring us.

In a world of unreliable networks and vastly differing device capabilities how can we ensure that we always deliver a fully functional user experience? Let’s go beyond the theory and look at some practical techniques used at BuzzFeed to create resilient front-end systems.

There are some exciting new developments happening in the web platform right now. New APIs such as CSS Grid, Web Components, Custom CSS Properties and the Web Animation API. Each on their own is a complex topic worth getting to grips with but what this talk aims to show is how they can be used with each other when used together the result is greater than the…

What’s common for Meryl Streep, Henry Ford and Albert Einstein? All of them suffered from different problems in their professional lives despite their success. This talk *is not about development*. Instead of code, this inspirational and motivational talk will set debugger on ourselves as humans to analyse the bugs most of us face in our day-to-day jobs as d…

There's a lot of competition to define the next big unicorn performance metric, but does this unicorn actually exist? In the past, we relied on metrics like page load time, start render, and time to first paint to measure user experience, but we now know that these metrics don't tell the full story.The key to a good user experience is quickly delivering the …

There's a common misconception that making a Progressive Web App means creating a Single Page App with an app-shell architecture. But the truth is that literally any website can benefit from the performance boost that results from the combination of HTTPS + Service Worker + Web App Manifest.

Missguided are one of the UK's most innovative and fast-moving fashion retailers but as with many other retailers, web performance hasn't always been our highest priority.In summer 2017 we started to make performance improvements and as a result, Android revenue increased significantly. Spurred on by this success we created a dedicated performance team and e…

It’s pretty widely accepted that performance impacts business success. So where do you start and how do you make sure you’re successful? It’s not just about making the slowest pages faster or having the fastest root cause analysis in a fire drill. We need to start to manage performance like a product and use data to gain clear prioritization of efforts and i…

Wix is the leading DIY platform for building an online presence, hosting over 100 million websites. Providing high-performance service is of topmost importance to us, and is one of our main goals for the entire company. In this case-study I will review how we implemented a process of continuous performance improvement, the methodologies and technologies we u…

This talk will discuss the new QUIC protocol and why it is needed/important for web performance in particular. I will start by discussing the shortcomings of the current HTTP/2 setup and how QUIC aims to help solve them. I will discuss the bolder aspects of the new standard and the open challenges.The second part will detail our own experience in developing …

What does performant look like when you can't see the screen? The browser does more with the DOM than visually render content. It presents an accessibility tree that's queried using platform accessibility APIs. Different browser processing models mean that Assistive Technologies (AT) are changing the way they obtain accessibility information, but is that hav…

Like it or not, a huge part of modern web development involves the use of third-party providers: fonts, analytics, ads, tracking, and more all have an impact of performance, and can leave us (or, more worryingly, our visitors) susceptible to performance degradation.In this talk, we’ll take a look at unruly or uninvited (third-)party guests: how to detect the…

Inside and out of the technology sector, more people are talking about diversity than ever before. That means it matters to us as a society. That’s good, because I care deeply about diversity, and I need you and all of us to care.

Every day the trivago hotel search website enables millions of users to find their ideal hotel in over 190 countries. With over 50 active locales and annual traffic growth of over 40%, maintaining optimal web performance is key to trivago's success as a business. In emerging markets, maintaining optimal web performance can become a challenge: varying network…

Somewhere on a university campus in the US midwest, a 20 some year old student was earning minimum-wage, writing code in the middle of the night that would forever change the world. Until 1992, the internet was largely textual, reserved almost exclusively to academia, with the charm of searching for library books via antiquated card catalogs. The sea change …