The first time you use new versions of Google Chrome you notice an improve in your internet speed.
For me happens that for certain pages it seems like appears instantly.
How Chrome does that ?
Once you enter on a webpage, the browser has to convert the URL you are using to an IP. This is done using a server, so for every link you click, you need an extra call to the DNS server. If this server doesn’t know how to solve the IP, it has to ask to a superior server.
Of course this operation can consume a lot of time. So what Chrome does is asking for the resolution, before the links are clicked, when the user is reading the page.
Firefox uses a similar technique but I prefer Chrome implementation.
There are reports, you can find them on Google, of related problems with this feature, but this may seem related to advanced users, so in this solution you will find how to enable/disable the feature.
If you want to know your preferences type about:dns:
1. Go to Options:
2. Go to Under The Hood Tab, you can then configure if you want to use the pre-fetching technique.