I couldn't come around the fact that addthis is always loading a huge 522kb file. Is it possible to optimize that, otherwise we peobably have to ditch addthis for sharethis, or similar.
Unfortunately you can't optimize that file. However, since we're used on 14 million domains across the Internet by about 1.3 billion browsers it's extremely likely that the user will have that file in their cache and won't have to download it on every page of your site.
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