[Commentor] LC-397 Charles McCathieNevile on behalf of Opera Software [Working Group decision] We agree and have added a new best practice to that effect (EXTERNAL_RESOURCES), which combined with the BALANCE Best Practice covers the suggestion. [Commentor reply] yes [Comment] 
BP Not covered: 4. Balance page weight and latency In a number of cases it will be appropriate to provide a choice between a large page and the same page broken into appropriate chunks. (Browsers like Opera mini will in any case break a page into appropriate sized pieces for phones that need this done). It can also be important to decide what resources to include externally, and which to include in the page. Use of the data: URI scheme can allow small images to be included inline (as can SVG where supported by the browser), and stylesheets and scripts can likewise be incorporated in the page, reducing latency effects caused by fetching multiple resources, or linked to allow efficiency from decisions on whether to load them and from caching.