Alla Gringaus

Scaling Performance of Large Applications

Building a large JavaScript application that performs well on the desktop is hard. Building a large JavaScript application that performs well on mobile devices initially might seem impossible. However it can be done! This talk will focus on techniques that we have discovered and developed in the last year while building a large tablet application, and optimizing it’s performance across a spectrum of mobile browsers. Topics will include reducing initial load time, dealing with large quantities of data, minimizing trips to the DOM, and dealing with low powered devices.

by Eric DeLabar.

Avoid cloaking, don’t kiss Google bot.

I just saw the page that was specifically created for Googlebot (hysterical). Ironically, the webmaster even included the link that said: “Click here to load this page faster” assuming he was doing the right thing by creating a just-a-content page. In reality, this was a classic example of cloaking. I won’t provide that URL since I reached out to that webmaster and sent him Matt’s video from 2010 when the Page Speed was announced. The point is: Do not do anything special for Googlebot that you do not do for your regular users (pretty basic, but apparently not everyone follows).

Matt Cutts: Optimizing for Speed

Matt Cutts says, – One thing I would pay attention to, is optimizing for speed. It is a slight factor in Google’s rankings, and a lot of people have run tests, and they have discovered that if you are able to increase the speed, customers end up doing more things: more purchasing, more exploring, more browsing. You can definitely increase your ROI if you decrease your latency.

That is why Speed Matters

Mobile vs. Web consumption

Enhance Performance with mod-pagespeed

mod_pagespeed is an open-source Apache module that automatically optimizes web pages and resources on them. It does this by rewriting the resources using filters that implement web performance best practices. Webmasters and web developers can use mod_pagespeed to improve the performance of their web pages when serving content with the Apache HTTP Server.

mod_pagespeed includes several filter that optimize JavaScript, HTML and CSS stylesheets. It also includes filters for optimizing JPEG and PNG images. The filters are based on a set of best practices known to enhance web page performance. Webmasters who set up mod_pagespeed in addition to configuring proper caching and compression on their Apache distribution should expect to see an improvement in the loading time of the pages on their websites.