Measuring Website PerformanceFrom a user perception point of view

Enrico Foschi – SkillPages Front End Leadhttp://skillpages.com/enrico.foschi - @enricofoschi

PERFORMANCE DATAvs

USER PERCEPTION

Users are happy when they can start to interact with the

page.

Even if the page didn’t fully load.

Part #1:

WEBPAGETEST.orgfor data and user perception

one of the

GREATEST TOOLS

Useful for

1. User Perception

2. Load Timesof course!

3. Optimization advices

4a. Comparisonswith previous tests

4b. Comparisonsblocking page elements

psssst: it also is

DOWNLOADABLEand

AUTOMATABLE

Part #2:

BROWSERS PLUGINSfor data and best practices

YSlow

PageSpeed

Part #3:

SHOWSLOWthe long term solution

COLLECTS DATA FROM...

YSlow

PageSpeed

for constant

MONITORING

credits: http://blog.dynatrace.com

but OUCH!

IT NEEDS TO BE INSTALLED LOCALLY

Part #4:

HOW DO WE RANKWITH OTHERS

it just is cool to know

SPEEDOFTHEWEB.COM

but still, it doesn’t really care about user perception

Q & A