La langue du site se localise par IP

<head>  <title>Widgets, Inc</title>  <link rel="alternate" hreflang="en-gb"        href="http://en-gb.example.com/page.html" />  <link rel="alternate" hreflang="en-us"        href="http://en-us.example.com/page.html" />  <link rel="alternate" hreflang="en"        href="http://en.example.com/page.html" />  <link rel="alternate" hreflang="de"        href="http://de.example.com/page.html" />  <link rel="alternate" hreflang="x-default"        href="http://www.example.com/" /></head>
Yellowed Yak