What percent of visitors should click on the next page before you enable prefetching?

Posted by Kevin Burke on Pro Webmasters See other posts from Pro Webmasters or by Kevin Burke
Published on 2012-03-05T07:54:43Z Indexed on 2012/04/03 17:43 UTC
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Performance

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dns

Mozilla Firefox and Google Chrome support prefetching via an HTML tag:

<!-- in chrome -->
<link rel="prerender" href="http://example.org/index.html">

I suppose it is always worthwhile to include this tag if 100% of users on a page click on the "Next Page" button or similar, and never worthwhile to include it if only 2% or 3% of users visit the following page. At what percent of clicks should you turn on prefetching of the next page? 65%? Also, does the calculus change if the current page is HTTP and the next page is HTTPS?

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