This document discusses how website performance optimization (WPO) and server performance optimization (SPO) are important for SEO. It notes that Google aims for site speeds under 1.5 seconds and studies show 2 seconds is the threshold for an acceptable user experience. The document then provides tips for optimizing Joomla sites, including using professional web hosting, reducing HTTP requests, compressing content, optimizing images, and employing a content delivery network. Case studies show how optimizing a Joomla site can significantly improve response times.

1. SEO? Why bother if your site is dead slow? @jab11
SEO? Why bother if your
site is dead slow?
Website Performance Optimization (WPO)
Server Performance Optimization (SPO)
Jira ICT www.jira.nl - @jiraict
Yireo www.yireo.com - @yireo

2. SEO? Why bother if your site is dead slow? @jab11
About myself
Ray Bogman
• Computer Geek since 1983
• Ethical hacker, security specialist
• Performance specialist
• Founder Jira ICT | Yireo
• Owner of wildhibiscus.nl
• Joomla Lover since Day One
• Joomla/Magento trainer/consultant

3. SEO? Why bother if your site is dead slow? @jab11
Why do we need fast website?

4. SEO? Why bother if your site is dead slow? @jab11
What's new

5. SEO? Why bother if your site is dead slow? @jab11
Response time
What's a good response time to aim for?
Studies by Akamai claim 2 seconds is the
threshold for websites being acceptle.
At Google they aim for under 1.5 second.

6. SEO? Why bother if your site is dead slow? @jab11
Google Analytics – Site Speed

7. SEO? Why bother if your site is dead slow? @jab11
Is Joomla slow?

8. SEO? Why bother if your site is dead slow? @jab11
Case: joomla-speed.com
Before:

9. SEO? Why bother if your site is dead slow? @jab11
Response time
No more “next-next-next-finish” clicking
• A faster website requires work
• First analyzing, then tuning

10. SEO? Why bother if your site is dead slow? @jab11
Case: joomla-speed.com
After:

11. SEO? Why bother if your site is dead slow? @jab11
Optimizing Joomla
How to optimize Joomla?
● Professional Webhosting
● Reduce the number of HTTP requests
● CSS Sprites
● Compress your content
● Deflate/Expires content
● Reduce the image size
● Use a Content Delivery Network (CDN)
● ... and many many more tricks

12. SEO? Why bother if your site is dead slow? @jab11
•Professional Webhosting
• Not every webhoster is optimazed
• Shared, Dedicated or VPS/VDS
• Apache, Nginx, Lighttpd
• File cache, Xcache, APC, Memcache etc...
www.byte.nl (shared/dedicated)
www.xlshosting.nl (VPS, optimazed images by Jira)

13. SEO? Why bother if your site is dead slow? @jab11
Minimize HTTP requests
• Minimize the number of images needed
• Combine images with CSS Sprites
• Combine CSS and JavaScript

14. SEO? Why bother if your site is dead slow? @jab11
CSS Sprites

15. SEO? Why bother if your site is dead slow? @jab11
Compress your content
Compress text-output (HTML, CSS, JavaScript):
• mod_deflate
• Gzip

16. SEO? Why bother if your site is dead slow? @jab11
Enable mod_deflate & mod_expires

17. SEO? Why bother if your site is dead slow? @jab11
Enable gzip

18. SEO? Why bother if your site is dead slow? @jab11
Reduce size of images
• Indexing
• Compression

19. SEO? Why bother if your site is dead slow? @jab11
Content Delivery Network (CDN)
Content is delivered through network of servers,
instead of just a single webserver

20. SEO? Why bother if your site is dead slow? @jab11
Measure from different entry points
0.19 sec
0.40 sec

21. SEO? Why bother if your site is dead slow? @jab11
Measure from different entry points
0.8 sec
0.9 sec

22. SEO? Why bother if your site is dead slow? @jab11
Techniques & Resources
•YSlow (Firebug/Firefox plugin)
•Google Page Speed (Firefox/Chrome plugin)
•Webpagetest.org
•Gtmetrix.com (http://gtmetrix.com/reports/www.joomla-speed.com/iFp0naj4)
•Whatsmyip.org/http_compression
•Smushit.com/ysmush.it
•Host-tracker.com
•CSS Sprites (CSS technique)
•CDN (Content Delivery Network)
•Byte Internet (Joomla hosting provider)
•XLS Hosting (Joomla dedicated VPS images by Jira)

23. SEO? Why bother if your site is dead slow? @jab11
More Jira ICT
•WPO/SPO audits
– jira.nl/speed
•Training & demo-days
– www.joomla-competence-center.com/
– cursus.jira.nl

24. SEO? Why bother if your site is dead slow? @jab11
Thank you
ray@jira.nl
#jiraict
www.jira.nl
http://www.slideshare.net/jiraict
http://www.facebook.com/jiraict