22. Make fewer HTTP requests
Use a Content Delivery Network (CDN)
Add Expires headers
Compress components with gzip
Put CSS at top
Put JavaScript at bottom
Avoid CSS expressions
Make JavaScript and CSS external
Reduce DNS lookups
Minify JavaScript and CSS
Avoid URL redirects
Remove duplicate JavaScript and CSS
Configure entity tags (ETags)
Make AJAX cacheable
Use GET for AJAX requests
Reduce the number of DOM elements
Avoid HTTP 404 (Not Found) error
Reduce cookie size
Use cookie-free domains
Avoid AlphaImageLoader filter
Do not scale images in HTML
Make favicon small and cacheable Slide 22
23. If it is so Great,
why doesn‘t Everybody do it?
35. 1. Do we do Domain-
Sharding?
2. Do we load all
JavaScript at the bottom
of the page?
3. Do we minimize the
JavaScript? Slide 35
36. Faster Websites =
_ More PIs
_ Higher Conversion
_ Better SEO
_ Better Karma
Slide 36
37. Steve Souders
http://stevesouders.com/
Fast by Default
http://www.slideshare.net/hashc0de/fast-by-default-2400000
Stoyan Stefanov
http://www.phpied.com/
High Performance Web Pages - 20 new
best practices
http://www.slideshare.net/stoyan/high-performance-web-pages-20-new-best-practices
Don‘t make me wait
http://www.slideshare.net/stoyan/dont-make-me-wait-or-building-highperformance-web-applications
The Performance Business Pitch
http://www.phpied.com/the-performance-business-pitch/
Nicole Sullivan
http://www.stubbornella.org
Designing fast Websites
http://www.slideshare.net/stubbornella/designing-fast-websites-presentation
Slide 37