Many web sites fall in the middle of these metrics. For these sites, the best solution generally is to deploy the JavaScript and CSS as external files. The only exception where inlining is preferable is with home pages, such as Yahoo!'s front page and My Yahoo!.
Home pages that have few (perhaps only one) page view per session may find that inlining JavaScript and CSS results in faster end-user response times.
For front pages that are typically the first of many page views, there are techniques that leverage the reduction of HTTP requests that inlining provides, as well as the caching benefits achieved through using external files. One such technique is to inline JavaScript and CSS in the front page, but dynamically download the external files after the page has finished loading. Subsequent pages would reference the external files that should already be in the browser's cache.
builderfly on 02 Jan 20This article will clarify what ecommerce parameters you should monitor continuously. This is the thing that would illuminate your business systems and guide. A useful metric can be analyzed in crosswise overtime periods. If you can think about a metric crosswise over various periods, it's a good metric. It gives you progress or relapse of your business and encourages you to understand what to do.
