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DNS Prefetching: Loading the DNS of the domains needed before they are required
01-30-2013, 07:46 AM
Post: #6
RE: DNS Prefetching: Loading the DNS of the domains needed before they are required
I did some testing today (coincidentally) and found that prefetching did had a measurable effect on each of the browsers that supported it.

I can't remember which browser I performed this specific test in, but the results for each configuration were the same - the DNS was resolved right after the HTML document completed.

without prefetch
with prefetch

Notes:
I am prefetching for ghost.redstorm.com, rainbow.redstorm.com, ajax.googleapis.com, and http://www.google-analytics.com.

It's not much of a performance gain, but it is one. And it was easy. Smile
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RE: DNS Prefetching: Loading the DNS of the domains needed before they are required - pyronite - 01-30-2013 07:46 AM

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