How slow is your website?
Broadband connections mean nothing for users if your site is slow because it’s poorly coded or thought out.
YSlow evaluates 13 different performance factors and provides a letter grade to each. If for any reason you fail to score a straighth ‘A’, YSlow will provide additional detail to help you solve the problem.
Let’s see how sitepoint.com did:
Overall 64/100 (or a “D”) largely because we don’t use a CDN (Content Delivery Network such as Akamai) nor Entity Tags.
Aside from rating performance factors, YSlow provides useful stats on the loading size of your website, for both brand-new visitors as well as return users who might have portions of your site still in their cache. Here’s how it looks:
Update: All the performance rules are described on Yahoo’s site.