Timthumb, MaxCDN, W3 Total Cache, wp_get_attachment_image_src

Timthumb is a great piece of software used by many theme designers for thumbnail generation and manipulation. It does an excellent job resizing images, but it is also likely the biggest performance bottleneck to your site speed. The little script gets called into action whenever a page with thumbnails, such as index, home page, is viewed. Imaging how many PHP executions may be called on a busy site! Once timthumb has generated the thumbnails and images stored in the … [Read more...]