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The +1 Button: Now Faster

#1
One of the 10 things we hold to be true here at Google is that fast is better than slow. We keep speed in mind in all things that we do, and the +1 button is no exception. Since the button’slaunch, we have been hard at work improving its load time. Today, we’re proud to announce two updates that will make both the +1 button and the page loading it, faster.

First, we’ve begun to roll out out a set of changes that will make the button render up to 3x faster on your site. No action is required on your part, so just sit back, relax, and watch as the button loads more quickly than before.

In addition to the improvements made to the button, we’re also introducing a new asynchronous snippet, allowing you to make the +1 experience even faster. The async snippet allows your web page to continue loading while your browser downloads the +1 JavaScript. By loading these elements in parallel, we’re ensuring the HTTP request to get the +1 button JavaScript doesn’t lead to an increase in your page load time. For those of you who have already implemented the button, you’ll need to update the code to the new async snippet, and then you should see an overall improvement in your page load time.

To generate the new async snippet, use our +1 Configuration Tool. Below, you’ll find an example of the code, which should be included below the last <glusone> tag on your page for best performance.
posted by david on google official webmaster forum

http://googlewebmastercentral.blogspot.com/2011/07/1-button-now-faster.html
 

kkm323

Well-known member
#6
By default, XenForo ships with +1 disabled, as it has proven to be rather heavy on HTTP requests for such a simple button, but it's there if you want it. Just go to the SEO options section of the Admin Control Panel and enable it if you wish to do so.
source "kier"
kier this good news for everyone :)