2. About Buddy I build web performance monitoring products and help companies make their sites faster From San Francisco Bay Area, California Co-Founder Log-Normal, Inc. http://lognormal.com @bbrewer
6. In 2006, the average online shopper expected a web page to load in 4 seconds. Today, that same shopper expects your page to load in 2 seconds or less. (Forrester Consulting) A 1-second delay in page load time equals 11% fewer page views, a 16% decrease in customer satisfaction, and 7% loss in conversions. (Aberdeen Group) One e-commerce company found that every 100ms delay cost them 1% of sales. (Amazon.com)
30. Real user: boomerang.js (http://github.com/yahoo/boomerang)
31.
32. Use the browser cache HTTP 1.0 – Expires: HTTP 1.1 - Cache-Control: max-age Watch out for Etags! Source: http://httparchive.org/interesting.php#max-age
And watch out for Etags! On Apache and IIS they are unique by default to the server serving the initial resource, so subsequent requests to another node in the cluster will bust the cache.