Slide 31
Slide 31 text
Why are ads so slow?
@brucel
▪ slow HTTP response, multiple HTTP requests, huge number of
HTTP redirects, big and suboptimal javascript code.
▪ often the DOM element is just a script one, which means it is
fired (load time++) to create another DOM element. That
might finally load quite a few inlines.
▪ use counter URLs that often are chained, which means a
bunch of redirects until real resource.