Google’s knowledge base 2.0: the Knowledge Vault – #brightonseo

Building the biggest knowledge graph, in layman terms an information database, of all time. That is what Google is researching at this moment. New details were presented during the annual “Knowledge Discovery in Databases (KDD) conference” in New York two weeks ago. Behind the screens of corporations like Microsoft, Facebook, Amazon and IBM are similar systems being developed. It’s a race towards the first database which archives all human knowledge.

The original paper: Knowledge Vault: A Web-Scale Approach to Probabilistic Knowledge Fusion – Link: http://bit.ly/knowledgevault

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Distinguishing entities in Google auto-complete

During some research in Google, I noticed how Google is presenting additional information about the auto-completed entity your are searching for. An example for the partial query [hilton london]:

hilton-london-google-autocomplete
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What can go wrong when migrating a website to HTTPS?

Today Google finally came with a clear statement about HTTPS: HTTPS as a ranking signal. So what will happen in the upcoming months is that lot’s of companies are going to buy some SSL certificates and migrate their website to a new domain. Sounbds easy, but in practice this is a complicate challenge which will be different for every websites.

Never forget: there will be a temporary traffic loss from organic traffic, even when everything is properly executed. Be prepared for that, add some extra AdWords budget for example to make sure sales are not decreasing to much. The biggest risk of not doing a migration properly is traffic loss over a longer period instead of just a temporary loss.

migration-gone-wrong

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These SEO Chrome extensions have access to your (browser) data

Today my fellow SEO, Sander Tamaëla pointed out on Twitter that the popular Chrome extension Webpage Screenshot (4 million downloads according to their website) is sending all kinds of data to their servers, like the visited pages, session IDs, social connections etcetera:

This made me curious, since I was aware of the possibilities of tracking people’s behaviour by browsers add-ons like toolbars and extensions but I never heard anyone about a popular Chrome extensions. I’m not that paranoia and mostly aware of what I’m doing online, but I wanted to know how Google Chrome is dealing with plugin acception and how it communicates about these permissions given once you install an extension.

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How to get your author photo back in the SERPs

It is two weeks ago since John Mueller announced: we’re simplifying the way authorship is shown in mobile and desktop search results. Google is not showing the author photo’s and circle count in the SERPs anymore. This is what changed in the SERPs:

serp-changes

How do you get those pictures back?

There is another rich snippet which gives you the possibility to add a picture to the SERPs: the recipe snippet! All the information can be found in Google’s documentation: Recipe rich snippet documentation. An example:

recipe-bacon

So you just add two of the required mark up data from this list of four characteristics:

  1. photo
  2. prepTime, cookTime, totalTime, or ingredients
  3. calories
  4. review

This means the following code is enough to implement, just use your blog title as the Name element, use your profile photo as the Photo element and reviews can be added everywhere:

<div itemscope itemtype="http://data-vocabulary.org/Recipe" >
<h1 itemprop="name">This is my blog title</h1>
<img itemprop="photo" src="author-photo.jpg" />
<span itemprop="review" itemscope itemtype="http://data-vocabulary.org/Review-aggregate">
<span itemprop="rating">4.0</span> stars based on
<span itemprop="count">35</span> reviews
</span>
</div>

Disclaimer: this tactic is not allowed by Google, so it could harm your other rich snippets if Google decides your spamming their SERPs with irrelevant rich snippet additions. In most cases they will removed all your snippets, it will not affect your rankings.