We are flushing Internet’s speed down the toilet

really fast!

@ Levataswe are doing an amazing job

We are focusing on:

● User Interface● User Experience● Search Engine Optimization● Accessibility● Testability● Code Quality

But who is focusingon speed?

We are!

We are!sort of

This is the question we are asking today

This is the question we are asking today

Is it too slow?

But that’s not enough

Amazon Study1s delay could cost Amazon $1.6 billion

in sales each year

This is how our mind works

1-100ms100-300ms

300-1000ms1s+

10s+

InstantSlight perceptible delayTask focus, perceptible delayMental context switchI’ll come back later

More pressure for mobile

56% of users say that they expect the mobile web to be

faster than the desktop web.

Define our budget

Define our budget

100 ms - Great

1,000ms - Acceptable

With our budget, let’s make sure our pages are fast(er).

With our budget, let’s make sure our pages are fast(er).

right?

But we aren’t doing that

But we aren’t doing that

Actually, we are doing the opposite

We need to stop and think

We need to stop and thinkand take action

Two things we can do:

1. Make our sites faster

2. Make our sites feel faster

To make our sites faster

1. Optimize images, CSS, HTML, JS2. PNG vs JPG vs SVG3. Minimize CSS, HTML, JS4. Leverage browser cache5. Gzip6. Avoid unnecessary redirects7. Leverage CDNs8. Measure and Test

To make our sites feel faster

It’s all about user perception.

1. Avoid blank pages2. Animations3. Asynchronous operations

Conclusions

1. Speed can’t be an afterthought2. It involves everyone: designers, devs, QAs3. We can automate most of it

Fun fact

85% of mobile users are on 2G

Remember 2G?