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Simon Willison’s Weblog

Your Web, Half a Second Sooner. Google AdSense now serves a tiny bit of JavaScript that loads everything else in a dynamically populated iframe, thus avoiding blocking the rest of the page load. It’s about time online advertising providers started taking page performance seriously.

Posted 17th March 2011 at 5:39 pm

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8 comments

  1. That’s much nicer. When I’ve had to place ads that use document.write before, I’ve put them at the end of the document in container divs, then used JavaScript on page load to append them to placeholder divs in their intended location.

    Much nicer to have the ads themselves work asynchronously.

    Paul D. Waite - 17th March 2011 18:30 - #

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