Many sites have similar page content in their websites. Often named as duplicated content. If search engines (like Google) will find duplicated content, then Google will index only one version. And in your case this could be the wrong version (page) and you could miss a lot of potential traffic. This is what we call a canonical issue. A canonical page is the preferred version of a set of pages with highly similar content. But you as the web owner can tell Google which version has to be indexed, by adding a specific parameter in the section of your website. Watch Matt Cutt’s video about...

Info on the Caffeine Update Google recently opened up a preview of our new Caffeine update, and I wanted to give a little more background on this change. At the Real-Time CrunchUp a few weeks ago, I joked that the half-life of code at Google is about six months. That means that you can write some code and when you circle back around in six months, about half of that code has been replaced with better abstractions or cleaner infrastructure. Six months is an exaggeration, but Google is quite serious about scrutinizing our codebase regularly and rewriting the parts that don’t scale well to make...

By Matt Cutts People think about PageRank in lots of different ways. People have compared PageRank to a “random surfer” model in which PageRank is the probability that a random surfer clicking on links lands on a page. Other people think of the web as an link matrix in which the value at position (i,j) indicates the presence of links from page i to page j. In that case, PageRank corresponds to the principal eigenvector of that normalized link matrix. Disclaimer: Even when I joined the company in 2000, Google was doing more sophisticated link computation than you would observe from the classic...

Source: CNN.com (CNET) — Large Internet companies spend millions on consultants and technology trying to get their sites to rank among the highest results on Google. Everyone else has to rely on the poor man’s search-engine optimization: the link exchange. If you’ve ever hung up your own shingle on the Web, you’ve probably gotten an e-mail to this effect at some point: “Dear So-and-so, I believe your site and mine could benefit from exchanging links.” We probably get eight to 10 a week in the CNET News general mailbox, mostly from technology-related companies...

From: Webmaster Central Blog – by Luisella MazzaWebmaster Level: Intermediate. We hear lots of questions about site architecture issues and traffic drops, so it was a pleasure to talk about it in greater detail at SMX London and I’d like to highlight some key concepts from my presentation here. First off, let’s gain a better understanding of drops in traffic, and then we’ll take a look at site design and architecture issues. Understanding drops in traffic As you know, fluctuations in search results happen all the time; the web is constantly evolving and so is our...