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Web Directions Lazy Load

Web Directions Conferences for web and digital professionals
hover everything CSS Global: April 2021
lazy load front end performance Global: June 2021
global scope JavaScript the language Global: July 2021
code PWAs & the Web platform Global: Sept 2021
access all areas accessibility engineering Global: Late 2021
safe security, privacy, identity Global: Late 2021

Global, OnlineJune 11 & 18 2021

A conference all about front end performance

Asia Pacific

June 11 & 18

11am–3pm

AEST (GMT+10:00)
Europe

June 11 & 18

12pm–4pm

BST (GMT+1:00)
Americas

June 11 & 18

1pm–5pm

EDT (GMT-4:00)

lazy load'21
Speakers
Videos
Schedule
Register

About lazy load

Front end performance used to be a relatively simple task–minifying, concatenating and gzipping, a bit of smushing images, and all done.

But in 2021 it's far more than that, and only getting more complex. That's where lazy load comes in. A conference dedicated to front end performance, we'll cover what you need to know now, and what's coming next.

Who's it for?

If you build front ends, lazy load is for you.

In depth knowledge

All Web Directions conferences feature in-depth knowledge from real world experts. Some you'll know, many you won't, but all bring a world of experience and knowledge.

12+ Transformational speakers
8+ Hours of content
2 Deep sessions
1 Extraordinary Conference

Your Convenor

We've invited Henri Helvetica to help ensure the best possible, most relevant content for lazy load.

Henri is a freelance developer who has turned his interests to a passionate mix of site performance engineering and pinches of user experience. When not reading the deluge of daily research docs and case studies, or auditing sites in devtools, Henri can be found contributing back to the community: Toronto Web Performance Group meetup + Jamstack TORONTO organizer + curating conference content or volunteering his time for lunch and learns at various bootcamps.

See what we're covering

Hear MC Henri Helvetica chat with our speakers about what they'll be covering at Lazy Load.

Featuring

Rita Kozlov
Patrick Meenan
Nic Jansma
Colin Blendell
Katie Hempenius
Anton Ball
Annie Sullivan
Matt Hobbs

Extraordinary speakers

We've assembled a world–class lineup of experts for you, going in-depth on web perfromance.

Covering

core web vitals
Server Side Rendering
waterfall charts
3rd party dependencies
lazyload
web assembly
web workers
HTTP/3
QUIC
PWA performance
Synthetic Metrics
Real User Metrics (RUM)
W3C WebPerf Working Group
Largest Contentful Paint (LCP)
First Input Delay (FID)
Cumulative Layout Shift (CLS)
Performance Culture
Caching
Case Studies

Featuring

Patrick Meenan
Annie Sullivan
Claire Tran
Abdurrachman Mappuji
Anton Ball
Colin Bendell
Matt Hobbs
Laura Morinigo
Katie Hempenius
Aaron Turner
Rita Kozlov
Nic Jansma, Nicolás Peña Moreno
Jana Iyengar

Patrick Meenan Engineering Fellow Catchpoint

The Latest on Measuring Web Performance

Patrick is going to explore the current state of web performance measurement, both in a lab (synthetic) environment and from real users (RUM). There has been a lot of exciting advancement in this space with Google's Core Web Vitals and evolving of other metrics over the years.

We will also explore how synthetic and RUM data complement each other and when each is most appropriate to use.

Read More

Annie Sullivan Staff Software Engineer Google

Overview of the Core Web Vitals metrics

The Core Web Vitals provide unified guidance that is essential to delivering a great user experience. Annie will talk about why and how these metrics were developed, how you can measure them on your site, and how they fit into the bigger picture of a product's user experience.

Read More

Claire Tran Software Engineering Manager, Director SafetyCulture, Women Who Code Sydney

Building a Performance Culture

A great user experience often ties into the performance of an application. The user’s first impression of the site they are visiting can be a make or break scenario, and if the performance is slow that can have an impact on the growth of a business. Behind the scenes, there are teams working on an application, performance is sometimes an afterthought and becomes a focus later on. In this talk, I will cover what performance culture looks like, how this starts and some ways to communicate the value of performance, as well as ways to drive engagement.

Read More

Abdurrachman Mappuji Lead Software Engineer Mekari

How Russian Doll Caching Can Improve Server Side Rendering

Are you implementing SSR for your web application? Do you know we can implement multiple layers of caching so that your caching is like an onion 🧅 or Russian Doll🪆?

That's the essence of this talk, we'll demonstrate how we can implement Russian Doll Caching to create layers of caching so that we get data from databases as small as we possibly can.

Hopefully, after this talk, you'll not ask about Russian Mall what? Russian %^&*() caching?

Read More

Anton Ball Front End Developer Doist

Native Lazy Loading

A conference called Lazy Loading must feature a talk on lazy loading! With native lazy loading introduced in Chrome 77 and other browsers following suite, now is a fantastic time to refresh on what's available today.

We are going to look at how and where native lazy loading can be used, potential gotchas and how it can help improve your site performance both with images and JavaScript alike. You'll come away from this talk with more knowledge on lazy loading even though the property appears deceptively simple at first glance.

Read More

Erin Wild and Javier Moreno Performance Engineering Shopify

Web Performance at Scale–The Shopify Experience

Shopify has a large and detailed view into the operations and evolution of e-commerce worldwide. In this talk we will present the work we have done in the last year to put speed at the front and centre of development culture at the company, as well as our strategy for performance data collection and analysis. We will share some of our findings and what we have learned on our way to making Shopify faster every day.

Read More

Matt Hobbs Head of Frontend UK Government Digital Service

How to read a WebPageTest waterfall chart

WebPageTest is one of the most well known and important tools in the web performance community. It's been actively developed by Pat Meenan since he worked at AOL in 2008. It has become the go to tool for both very simple to very advanced debugging of the web performance of a website. One of its most well known charts is the waterfall chart.

In this talk I'm going to introduce the waterfall chart and also go into detail on how you can examine and read it. The more you understand about the chart, the the more WebPageTest as a whole will be able to help you fix a slow performing website.

Read More

Laura Morinigo Developer Advocate/Principal Engineeer Samsung Internet

Is your Progressive Web App Lazy? How to read and improve your PWA Performance

A progressive web app is a way to bring a native app experience into the browser, therefore the idea is to have a progressive enhancement of your app but during our development process, we have to keep in mind a few factors in order to make it. During this talk, we are going to discuss possible how to read and test our PWA performance and which are the tools that can help us to deliver web apps that are fast and progressive (for real!).

Read More

Katie Hempenius Front End Software Engineer Google

Optimizing the performance of third-party dependencies

Third-party dependencies play an important role on most websites. This talk will discuss techniques that you can use to better understand, measure, and optimize your usage of third-party code.

Read More

Aaron Turner Senior Software Engineer Fastly

Performance Upgrades with WebAssembly and the Edge

This talk will be taking a look at how WebAssembly and Edge Computing can improve your front end performance of your Application. We will take a look at what WebAssembly is, how it can be used to replace hot paths in your JavaScript Application. What Edge Computing is, and how it can be used to provide additional performance to low end devices. Lastly, we will look at how they can be used together for portable and performant applications.

Read More

Rita Kozlov Product Manager, Workers Cloudflare

On the Cutting Edge: a Glimpse into the Future of Web Performance

Cloudflare Workers enables deploying a serverless application instantly, from a developer's computer to the edge - as close as possible (tens of milliseconds!) to every internet user around the world.

This is made possible by running V8 isolates - the same engines powering Chrome, on Cloudflare's global CDN network, spanning 194+ data centers around the world. For end users this means blazing fast, always available applications due to the reduced latency of requests traveling around the globe, and no cold starts, due to the lightweight nature of isolates, as compared to containers. For developers this means more time spent writing code, and building features, rather than scaling and optimizing cloud configurations.

This talk will cover the landscape of what platforms offer at the edge today, and how edge-based serverless is changing the web stack: from incremental dynamism at the edge, to the evolution of JAMstack on the edge and beyond!

Read More

Nic Jansma, Nicolás Peña Moreno Senior Principal Lead Software Engineer, Engineer Akamai, Google Chrome

What's New at the W3C Web Performance Working Group?

We'll discuss what the goals of the W3C WebPerf Working Group are, the browser standards we help design, the latest proposals / incubations for the future, and how you can participate!

Read More

Jana Iyengar Distinguished Engineer Fastly

HTTP/3 and QUIC: What, Why, and What's Next

An overview of HTTP/3 and QUIC efforts, and their current state at the IETF and in the world

Read More

Attend your way

Attend Lazy Load online, or as part a membership to our comprehensive conference platform, Conffab.

Conffab features hundreds of conference videos from our conferences, and other great conferences around the world.

2021 all Conference Pass

all 2021 online conferences live
all 2021 conference videos
Conffab presentation library

$595

Lazy Load+

Lazy Load conference
Lazy Load conference videos
Conffab presentation library

$245 before May 28th
$295 Standard

Lazy Load classic

Lazy Load conference
Lazy Load conference videos

$145 before May 28th
$195 Standard

Lazy Load Conference

May 2021

2 in-depth sessions
6+ hours of content
World Leading experts
Hallway Track

Lazy Load Conference Videos

All the Lazy Load conference presentations, captioned, transcribed and more

Conffab Presentation Library

1 year access to our growing library of hundreds of conference presentation videos from world leading conferences

All 2021 online Web Directions conferences

Access to all 6 online Web Directions conferences in 2021–50+ hours of content.

Find the conference pass for you

Attend your way

Attend Lazy Load online, or as part a membership to our comprehensive conference platform, Conffab.

Conffab features hundreds of conference videos from our conferences, and other great conferences around the world.

2021 all Conference Pass

all 6 2021 online conferences live
all 2021 conference videos
Conffab presentation library

$595

Conffab Premium

Lazy Load+

Lazy Load conference
Lazy Load conference videos
Conffab presentation library

$245 before May 28th
$295 Standard

Lazy Load classic

Lazy Load conference
Lazy Load conference videos

$145 before May 28th
$195 Standard

See what we've covered before

To get a taste for Lazy Load here's some great past presentations on performance from our conferences. And see more over on Conffab.com.

Yaser Adel Mehraban
Tammy Everts
Henri Helvetica
Mark Zeman
Patrick Meenan
Andi Tjong
Mark Nottingham
Aaron Turner

The conference CSS deserves

Online, globallyApril 23 & 30, 2021 2021

Learn More

a conference on front end performance

Online, globallyJune 11 & 18 2021

Learn More

a conference all about JavaScript

Online, globallyJuly 23 & 30 2021

Learn More

a conference on progressive web apps and web platform

Online, globallySept 17 & 24 2021

Learn More

accessibility engineering for front end developers

Online, globallyLate 2021

Learn More

privacy, security, identity for front end developers

Online, globallyLate 2021

Learn More

Over 600 presentations from 450 world leading experts at 32 conferences…and counting

All for $19.95 per month.

Or, get access to all our online events throughout the year as part of a Conffab Premium membership, for just $59.95 per month.

Keep up to date with Announcements

Want to know when our program drops, and tickets go on sale ? Let us know below and we'll email you when the program is announced. And why not follow us on Twitter?

Diversity Scholarships

We have diversity scholarships available for all our events. These provide full attendance just like any other attendee. We don't draw attention to those who have received a scholarship, but do look to make connections between them, and with our diversity sponsors, to help ensure the most valuable possible experience.

Our Scholarships focus on people who are unemployed, under-employed, self employed or in the early stages (up to 3 years) of their careers who identify as belonging to a group or groups under-represented at events like ours, and who might otherwise find it difficult to afford to attend.

Read more and apply at our diversity page.

Partners

We work closely with our partners and their technologies to deliver world leading online conferences.

Community Partners

Our venue

Lazy Load 2021 will take place across 2 Fridays in June wherever it's most convenient for you. With three sessions for each day, wherever you are, it'll be convenient for you.

Getting there:

Get out of bed, make a coffee, wander to your desk, and start right in. Or just watch from the comfort of your bed. If conditions allow watch in your office, or grab a team pass and watch together as a team.

No expensive flights, or long commutes, be part of it wherever you feel like.

Accommodation:

No need for hotel rooms or airbnbs!

Praise for past Web Directions events

Web Directions is the must-attend event of the year for anyone serious about web development.

Phil Whitehouse,

Innovation Lead DigitasLBi

I’ve been admiring the Web Directions events for years, and was honored to be part… What a fantastic event!

Ethan Marcotte,

inventor "responsive Web design"

Out of any conference, Web Directions is far and away our favourite

Dave Greiner,

founder Campaign Monitor

About Us

Co-founded and now run by John Allsopp, Web Directions has for over 15 years brought together leading developers, engineers, visual, IxD, UX and product designers, Art and Creative Directors, product managers indeed everyone involved in producing web and digital products to learn from one another, and the World's leading experts across this vast field.

We spend our lives thinking about what comes next, keeping up with trends in technology, practices and processes, and filtering the hype, to make sure you don't miss trends that matter, and don't waste time on hype that doesn't.

We promise attending one of our events will leave you significantly better versed in the challenges you face day to day, and in solutions for addressing them.

Due to the COVID-19 pandemic, we're switching things up a bit for 2020 and beyond. We'll be organising a growing family of focussed online conferences, and our annual extravaganza, Web Directions Summit will take place in Sydney as soon as it is practicable in 2021 (all going well).

John Allsopp

John Allsopp has been working on the Web for nearly 30 years. He's been responsible for innovative developer tools such as Style Master, X-Ray and many more. He's spoken at numerous conferences around the World and delivered dozens of workshops in that time as well.

His writing includes two books, including Developing With Web Standards and countless articles and tutorials in print and online publications.

His "A Dao of Web Design" published in 2000 is cited by Ethan Marcotte as a key influence in the development of Responsive Web Design, who's acclaimed article in 2010 begins by quoting John in detail, and by Jeremy Keith as "a manifesto for anyone working on the Web".