Business

Twitter button to pull down the internet?

By 2 Mins Read

I was thrilled to see twitter releasing their own button. This is good news all around for us bloggers looking to promote our content. After looking at their code snippets a warning is in place though. The current twitter button implementation will severely break your site if their servers face load issues. Fortunately you can work around this issues by slightly modifying their implementation.

Technical explanation

For Fashiolista.com we have been writing a lot about the various techniques for implementing these type of buttons. Especially important here is the way the javascript is loaded. Twitter uses a simple blocking script approach, where as digg, facebook and fashiolista use the async dynamic script approach. There are two large differences:

  1. Blocking script loads make your site slower
  2. If twitter goes down, your site joins in

Example

In this example we are faking slow twitter servers. (By routing it through google’s app engine and delaying the response). You can see the difference for yourself (be patient and be sure to clear your browser cache using CTRL F5).
Default twitter version
(note that site content is not loading until the twitter button is loaded)
Async twitter script
(everything loads and then we wait for twitter)

Solution

Solving this is quite simple. Simply change the way the twitter javascript is loaded from the first example to the second version.
Twitter version

<script type="text/javascript" src="http://platform.twitter.com/widgets.js"></script>

Async twitter implementation

<script type="text/javascript">
  //async script, twitter button fashiolista.com style
  (function() {
   var s = document.createElement('SCRIPT');
   var c = document.getElementsByTagName('script')[0];
   s.type = 'text/javascript';
   s.async = true;
   s.src = 'http://platform.twitter.com/widgets.js';
   c.parentNode.insertBefore(s, c);
  })();
</script>

Hope the difference won’t matter and Twitter will stay up 🙂
Follow me at:
@tschellenbach
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