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Front-End Performance: Building Faster Websites

SUN 22.9.
09:30 - 18:30
Riverview Building, Svornosti 2, Prague 5

Every case-study, every report, and every bit of feedback always tells us the same thing: speed matters. It’s good for users, it’s good for accessibility, and it’s good for business. But why are modern browsing experiences so slow? If technology is getting better, why are websites getting worse?

In this workshop, we’ll take an in-depth look at:

- how the network really works, and how to design around it; 
- how to keep websites fast whilst keeping clients and stakeholders happy;
- how to optimise our assets for faster delivery;
- how to trick the browser into delivering assets with different priorities;
- how to measure and profile performance wins and losses;
- a whole host of tips, tricks, and techniques to help us deliver the same experiences in record times;
- a bunch of fascinating little factoids and trivia which help shine a light on what’s really going on under the hood;
- how to prepare for the web (and its users) of tomorrow;
- lots of naughty little micro-optimisations, just for fun;
- and a lot, lot more.

100% of previous attendees would recommend the workshop to colleagues!

This workshop is targeted at intermediate to advanced front-end developers, web designers, and software engineers, or anybody who writes code. There will be resources and case studies for you to take back to non-technical stakeholders to help convince them of the power of performance.

You will need a laptop and something for making a lot of notes.

Lucerna Great Hall
Lucerna Great Hall

Harry Roberts

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Consultant Front-end Architect

Harry is an award-winning Consultant Performance Engineer from the UK. With a client list ranging from the United Nations to Google, the BBC to the Financial Times, he has helped some of the world’s largest organisations make their websites faster.

He also holds positions as a Google Developer Expert, where he shares web performance research and findings, and as Performance Ambassador for SHIFT Commerce, where he aims to make ecommerce faster from the inside out.

He writes about all things front-end performance at, speaks at tech events all across the globe, and regularly shares his insights at @csswizardry.