Page Speed Online is a web-based version of the Page Speed plugin, that allows developers to analyze web pages without the need of downloading an extension. Page Speed Online also features a mobile page analysis, which lets developers analyze their mobile sites like they are viewed in a mobile browser, with mobile-specific optimization recommendations. This article shows the new free service in action.
The race is on to get tickets to the 2012 Summer Olympics in London, England. Millions of people (some 2.3 to 2.7 million signed up to request tickets so far) are clamoring to attend events featuring the likes of Michael Phelps, Ian Thorpe, and Usain Bolt. To distribute the load in the initial ticket request phase, Olympic organizers are using a batch system to accept requests over a six week period. Even with this even-handed approach, the servers were under tremendous load in the early hours of this past Tuesday. We investigate and show how performance could be improved.
mod_pagespeed is an open-source Apache 2.2+ module designed to automatically speed up your site by optimizing the various components of your web pages. The module does this by rewriting page resources using filters that adhere to web performance best practices. mod_pagespeed is the server version of the client-side Firefox module that analyzes web pages using similar best practices.
Over 60% of the file size of the average web page is taken up by graphics and multimedia. So graphics optimization is an important step in optimizing web page speed. At an alarming frequency, we have seen large PNG24 and unoptimized JPEGs used on the Web. Large PNG24s should be optimized for file size or converted to PNG8s. This article shows how to optimize PNG files effectively by minimizing their color palettes, and using alpha transparency intelligently.
How do the top 100 weblogs compare with the 1000 most popular websites? What are the differences in size and performance between these two samples? What conclusions can we draw about advertising use between and within the two surveys? To find out, we updated a survey by Pingdom, an uptime monitoring company based in Sweden, who recently analyzed the top 100 blog home pages listed in Technorati for their size, composition, and web site performance. This article summarizes Pingdom’s findings, adds a CSS analysis, compares the top 100 blogs with the top 1000 websites, and offers some advice.
The Web has changed dramatically over the past seven years. During that time the Web has moved from a static one-way medium toward a dynamic platform for interactive services such as photo and video sharing portals. In a comparative survey of data traces served over the Web from 2000 and 2007, University of Twente researchers found that the nature of web sites has changed (Sadre and Haverkort, 2008).
There are a number of books published now on Web Performance. Here is a summary of the books available on the topic, mainly from O’Reilly.
Drop shadows add impact to web graphics, but they also impact file size. You can minimize the resulting file size of palette-based images such as GIFs and PNGs by reducing the complexity of drop shadows. This article shows how to create optimized drop-shadows in Photoshop to minimize the size of web graphics.
Inline images use the data URI scheme to embed images directly within web pages. As defined by RFC 2397, data URIs are designed to embed small data items as “immediate” data, as if they were referenced externally. Using inline images saves HTTP requests over externally referenced objects.
Advertising is a multi-billion dollar industry on the Web. The Internet Advertising Bureau reported that web advertising grew by nearly 34 percent in 2006 over 2005, totaling about $16.8 billion (IAB 2007). The yearly growth rate of Internet ads is increasing at 28.6% per year, while the overall ad industry drags along with an increase of only 7.7% a year (Baker 2004).