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?
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