Redefining Web Performance

Session details coming soon...
Tim Kadlec

Tim Kadlec

Head of Developer Relations - Snyk


Hunting the Unicorn

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 content your visitors care about the most. This is easy to say, but tricky to do. Every site has unique content and unique user engagement goals, which is why measuring how quickly critical content renders is a hugely challenging task.

Tammy will walk through a brief history of UX and web performance research, highlighting landmark studies that helped connect the dots between performance and user experience. She'll also demystify the current state of performance metrics and help you understand what you need to focus on for your site and your users.

Tammy Everts

Tammy Everts

Chief Experience Officer at SpeedCurve


Convincing your company to care about performance

You're at this conference because you care about performance! But what if your fellow developers or designers don't care about it? What if your boss doesn't see the value in you doing this work, or the higher-ups? We'll walk through how to get those around (or above) you to care about improving site speed, and how it's even possible to get them excited about and invested in your work.

Lara Hogan

Lara Hogan

Co-Founder - Wherewithall


Any site can be a Progressive Web App

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.

Jeremy Keith

Jeremy Keith

Technical Lead and Co-founder - Clearleft


It’s My (Third) Party and I'll Cry If I Want To

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 them, how to audit them, and how to manage them. We’ll also look at the different tools available to help us stress-test and quantify the overhead these third parties bring, and what that means for users and businesses alike.

Harry Roberts

Harry Roberts

Consultant Front-end Architect - CSS Wizardry Ltd


Session details coming soon

Henri Helvetica

Henri Helvetica

Performance blogger


There's more to performance than meets the eye

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 having an impact on performance, and what happens when we introduce a JavaScript accessibility API into the equation?
Léonie Watson

Léonie Watson

Communications Director & Principal Engineer - The Paciello Group (TPG)


This is for everyone

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.

Seren Davies

Seren Davies

Accessibility Specialist

Bruce Lawson

Bruce Lawson

Web standards expert


Fast Fashion - How Missguided revolutionised their approach to site performance

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 embarked on a journey to dramatically improve performance right across the site. All sites evolve over time and ours was no different, there was legacy code to be unpicked, new techniques to try and stakeholder needs to balance.

In this talk, we'll share some of the approaches we took, the challenges we faced and the lessons we learned. We'll also talk about the performance and revenue gains, and as ultimately getting faster is about making customers happier, their reaction too.

Mark Leach

Mark Leach

Head of eCommerce - Missguided

Andy Davies

Andy Davies

Associate Director, Web Performance - NCC Group


Improving load time for 100 million websites - Wix case-study

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 used, the results we were able to achieve, and our plans for the future.

Dan Shappir

Dan Shappir

Performance Tech Lead - Wix


How To Manage Performance Like a Product

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 improve performance where it matters most.

There will always be emergencies, but we can use product management strategies and data to help us work smarter; allowing us to identify and focus on the most impactful places to optimize. Maximize efforts and impact by making sure you and your team are focused on what matters most to your company, customers and bottom line. We’ll step through some of the keys of product management and how to apply them to performance and optimization projects.

Lauren Younger

Lauren Younger

Sr. Product Manager, Web Experience - Akamai


Speeding up without slowing down

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.com
    - how a highly componentised, microservices stack with a rapid release cycle can sometimes get in the way of performance
    - some ideas for working around these obstacles
    - that web performance is hard, and no-one's perfect

Rhys Evans

Rhys Evans

Senior Engineer - Financial Times


Let's build a Progressive Web App

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.

uve

uve

Developer Relations and Community Consultant


Starting a Dedicated Web Performance Team: the First Ten Months

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 customized metrics decisions by relating performance to engagement, and understanding what performance tooling developers need.

Sarah Dapul-Weberman

Sarah Dapul-Weberman

Software Engineer - Pinterest


Chrome user experience report

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 as synthetic measurement, since these numbers are obtained from pages loaded from a browser in a datacenter and not from actual users. That changes with the Chrome User Experience Report that Google launched last October. This Real User Monitoring (RUM) data for Google Chrome users include key user experience metrics for 10,000 websites from real users.

We will analyse this data to answer these questions, our experience in digging through this dataset and potential pitfalls to avoid when analysing it.

Inian Parameshwaran

Inian Parameshwaran

Founder - Dexecure


Web performance @ Nbrown: It's a business affair

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.

Nick Webb

Nick Webb

Senior Technical Specialist- Nbrown

Laura Sheridan

Laura Sheridan

- Nbrown


25% Faster Hotel Search. Web Performance? - trivago.

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 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. We ran comparative tests to improve performance, tied the resulting data to trivago's business metrics and correlated it to conversions, more page interactions and a significant increase in new users.

In this talk, you'll learn how trivago measures performance, how we run complex multivariate tests to calculate the business value of engineering and how we optimised performance for one of our key emerging markets.

Tobias Baldauf

Tobias Baldauf

Team Lead Core Front End - Trivago N.V.


Frontend Resilience

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.

Ian Feather

Ian Feather

Principal Software Engineer - Buzzfeed


Session details coming soon

Dawn Anderson

Dawn Anderson

Managing Director - Move It Marketing


Debugger; for Developers

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 developers. Among others, we will be talking about:

  • Perfectionism
  • Imposter syndrome
  • Overwork

But these are not limited to developers and are applicable to a much wider audience. It will be about psychology, neuroscience, work-life balance, work quality and… us.

Denys Mishunov

Denys Mishunov

Front-end developer


QUIC: in theory and practice

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 a QUIC implementation and from looking at other open source implementations. This will also incorporate some findings from related state of the art academic research on QUIC. We end by contemplating how quickly the new standard will evolve and what developers can do in preparation, especially if they have not yet transferred to HTTP/2 yet.

Robin Marx

Robin Marx

Web Performance Researcher - UHasselt - EDM

Sponsors

Please get in touch with Daisy Wort, Sponsorship Manager, to request a sponsor pack.

Fastly

Platinum Sponsor

NS1

Gold Sponsor

Akamai

Gold Sponsor

Google Developers

Diversity, Inclusion and Community Sponsor

Sticker Mule

Bronze Sponsor

Stay tuned for DeltaV Conf & LDNWebPerf updates