Tag Archives: Fixit
Fixit – Javascript Placement
January 9, 2014, by mark.anderson
This test determines if your page has Javascript includes in inappropriate places. Grouping Javascript includes together at the end of the page markup is optimal for page load. Due to the HTTP specification putting Javascript includes elsewhere in the page, at the top for instance, will result in loading blocking while the Javascript files are downloaded... Read More
Fixit – CSS Expression
January 9, 2014, by mark.anderson
This test determines if your page makes use of the CSS expression directive. The expession directive encapsulates Javascript code into CSS rules, effectively mixing styling data with functional logic. This is considered bad practice as they will affect page load time. But these Javascript expressions will also be re-evaluated when the user scrolls or interacts with the page... Read More
Fixit – DNS Lookups
January 9, 2014, by mark.anderson
This test determines if your page uses more domain names than best practice recommends. Each unique domain name referenced by a webpage requires an additional DNS lookup, a timely network process that will ultimately slow the page loading. Grouping content on a small number of domains ensures the browser can quickly iterate through DNS lookups and proceed with page loading... Read More
Fixit – Duplicate Resources
January 9, 2014, by mark.anderson
This test determines if your page makes use of duplicated resources. Including the same Javascript file or CSS file for instance will likely result in double the transfer time and will impact page load time. Duplication of page resources is typically the result of human error and should be avoided whenever possible... Read More
Fixit – ETag Support
January 9, 2014, by mark.anderson
This test determines if your page resources are delivered using valid Etag caching support. Etags allow the browser to better understand which content can be cached and which should be re-validated on each page load... Read More
