This document discusses measuring website performance across different browsers, locations, and networks. It identifies several factors that can slow down websites, such as having many page requests, large resources like images and CSS/JavaScript files, poorly optimized server configurations, and third-party plugins. The document recommends testing website performance in different environments to identify issues. It also notes that users want rich experiences but additional features can degrade performance. Overall speed and a good user experience should be design priorities.

1. Testing Drupal Site Performance Across
Browsers, Geographies and Networks
Bob Buffone Jess Iandiorio
CTO and Co-founder Sr. Director, Cloud Product
Yottaa, Inc. Marketing
Acquia

2. Acquia Network Support
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3. Acquia Network Knowledgebase
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4. Acquia Network Tools & Services
Integrated cloud tools that enhance and extend your site

5. Measuring your website
in different ways!!!
June 13th, 2012
Yottaa Inc.
http://www.yottaa.com

6. Agenda
• The Web… Its complicated
• Things that make a website slow
• Human factors of web performance
• How can you make your website faster?
• Tweet
– @rockstarapps
– @yottaa
6

7. WHY MEASURE IT?
© 2011 Yottaa Inc. All Rights Reserved. 7

8. In between your visitors and you
8

9. websitetest.com
9

10. http://content.foxsearchlight.com/inside
10

11. Variability in Locations
11

12. Variability in Connectivity
Connectivity makes a big difference. Think about your experience on your phone
compared to your office.
12

13. Variability in Browser
Browser differences can create surprising differences
• Connection Management
• JavaScript Engines
• Rendering Speed
13

14. THINGS THAT MAKE YOUR
WEBSITE SLOW
© 2011 Yottaa Inc. All Rights Reserved. 14

15. Lots of Requests
• Product owners want rich websites
– Rich in User Experience
– Rich in Visual Presentation
• Achieving richness requires more
resources to be downloaded to the client
– CSS
– HTML
– JavaScript
– Images
15

16. Content Breakdown
http://www.websitetest.com/ui/samples/4fd7e310cacea0731000019c#visualizations
16

17. Large Resources
• Many of the resources that you need to
load can be made fatter than required
– HTML, CSS, JavaScript – Add lots of
comments and white space
– Images
• Use images that are larger than displayed on the
webpage
• Always use the highest quality settings
• Turn off gzip compression on your server
17

18. Large assets take longer to download
18

19. Large assets take longer to download
776KB
19

20. Bad Servers
• There are many things that can make your
servers slow
– Poorly written code
– Bad database design
– Sharing a server with others
– Old Servers
– Not enough memory
– Slow hard drives
20

21. Large assets take longer to download
21

22. 3rd Party Plugins
• Bloggers love to make their websites slow
using plugins.
– Twitter, Facebook, Google Plus, LinkedIn
– Photo plugins…
• Not utilizing asynchronous loading of 3rd
party resources.
22

23. Marketing Loves Social
Social adds LOTS of resources -> 86 JavaScript, images
and CSS.
23

24. Other things you can do
• Redirect from www to non-www using client-side
– Use a 301 redirection instead of 302
• 404s – usually take longer
• Run JavaScript code while your page is loading.
• Only look at how fast your site is from your desktop
• Think your website is fast enough
• Do not test your websites performance
• Think your developers would never do any of these
things
24

25. HUMAN FACTORS
© 2011 Yottaa Inc. All Rights Reserved. 25

26. Human Factors
• Desire for Social
• Desire to increase functionality
• Lack of understanding about the impact of performance
on the business
• Lack of understanding about what makes a website slow
or fast
• Lack of the ability to determine if there is a problem
• Lack of time to test and fix issues
26

27. Thank you for your time
Bob (Buffone)
CTO/Co-founder
www.yottaa.com
27

28. Questions
• For more information visit:
http://www.acquia.com
• Contact us: sales@acquia.com or 888.9.ACQUIA
• Follow us: @acquia
• Comments welcome:
• Jess.iandiorio@Acquia.com
Today’s webinar recording will be posted to:
http://acquia.com/resources/recorded_webinars