March 17, 2008 Stoyan Stefanov made an appearance last week at the PHP Quebec Conference in Montreal. His session debuts Yahoo!’s latest research results and performance breakthroughs. He covers the existing 14 rules, plus 20 new rules for faster web pages. We’ve categorized the optimizations into: server, content, cookie, JavaScript, CSS, images, and mobile. After YSlow "A"? If your page isn't ge
