Tag Archives: amazon.com

Why Amazon.com Pages Rely on DNS Pre-fetch

The article presents a perspective on why Amazon.com pages rely on DNS pre-fetch and what other e-commerce websites could learn from this.   Whats Happening Under the Hood? As you do the view source of the homepage, amazon.com, you would find following Javascript code snippet, right at the top of the page:   <meta http-equiv=”x-dns-prefetch-control” content=”on”> <link rel=”dns-prefetch” href=”http://g-ecx.images-amazon.com”> <link rel=”dns-prefetch” href=”http://z-ecx.images-amazon.com”> <link rel=”dns-prefetch” href=”http://ecx.images-amazon.com”> <link rel=”dns-prefetch” href=”http://completion.amazon.com”> <link rel=”dns-prefetch” href=”http://fls-na.amazon.com”>   Later, in the same page as well as other pages, you would find several resources such as images, Javascript, CSS files accessed from one of the above as base URLs. So, let’s try and explore some of the …

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