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Preconnect, Prefetch, Prerender ...

Dominik Schöler
November 17, 2015Software engineer at makandra GmbH

A very informative and interesting presentation about browsing performance, looking at efforts Google Chrome takes to increase it.

From those slides

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There is a bunch of interesting pages in Chrome:

  • chrome://dns - List of prefetched DNS
  • chrome://predictors/ - Chrome knows where you'll go


With <link rel="preconnect" href=""> in an HTML head, you give the browser an early hint that it will need to access the mentioned domain. By setting up the connection in advance, page load performance gets improved.

Posted by Dominik Schöler to makandra dev (2015-11-17 14:38)