This document discusses measuring website performance from a user perception perspective. It recommends using Webpagetest.org to test load times and see optimization advice as well as compare tests and blocked page elements. It also suggests using browser plugins like YSlow and PageSpeed for data and best practices, and ShoSlow for long-term monitoring of performance data from those tools. However, ShoSlow needs to be installed locally. It also notes SpeedoftheWeb.com can be used to see performance rankings compared to others but may not fully reflect user perception.

1. Measuring Website PerformanceFrom a user perception point of viewEnrico Foschi – SkillPages Front End Leadhttp://skillpages.com/enrico.foschi - @enricofoschi

2. PERFORMANCE DATAvsUSER PERCEPTION

3. Users are happy when they can start to interact with the page. Even if the page didn’t fully load.

4. Part #1: WEBPAGETEST.orgfor data and user perception

5. one of theGREATEST TOOLS

6. Useful forUser Perception

7. 2. Load Timesof course!

8. 3. Optimization advices

9. 4a. Comparisonswith previous tests

10. 4b. Comparisonsblocking page elements

11. psssst: it also isDOWNLOADABLEandAUTOMATABLE

12. Part #2:BROWSERS PLUGINSfor data and best practices

13. YSlow

14. PageSpeed

15. Part #3:SHOWSLOWthe long term solution

16. COLLECTS DATA FROM...

17. YSlow

18. PageSpeed

19. for constantMONITORINGcredits: http://blog.dynatrace.com

20. but OUCH!IT NEEDS TO BE INSTALLED LOCALLY

21. Part #4:HOW DO WE RANKWITH OTHERSit just is cool to know

22. SPEEDOFTHEWEB.COMbut still, it doesn’t really care about user perception

23. Q & A