Yesterday Google’s “Search Quality Rating Guidelines” was leaked online from various sources. It’s a 125 page long document explaining the process of how Google’s internal search quality team should rate search results. At first, I thought that this might have been leaked on purpose because back in 2007 there was a very similar leak. Well, it looks like this is not the case, and Google does not want to be that transparent about their data … surprise …. surprise. As of this morning, the PDF has been taken down from both sources, and this statement now appears in its place:
“We’d had it posted earlier ourselves, but Google said that it was a copyrighted document, and since he hadn’t done any fair use work with it (such as excerpting it), so that we needed to remove it from our site or we’d get a formal legal request.”
To be fair to Google, I do not want to directly quote the document, but below are some of my opinions on what I read:
- How helpful a page is based on user intent is the most important factor when reviewing a website.
- Social network profiles are not thought as vital search result for companies.
- Social network profiles are thought as vital search result for music bands and small organized groups.
- Google would rather rank a targeted internal page over a home page for a specific search term if that page is more relevant. (I have always preached that your home page can not rank for every keyword nor should it, as you should drive the user to the page they are looking for.)
- Misspelled searches should be treated as the correct spelling.
- All Google Search Raters must use Firefox. (I know not all search raters are based in Mountain View, but if you feel that your site might be part of sort of review you could always look at your log files wink wink.)
- Raters are taught how to find hidden text and they review whois information. (Hence, why it is always important to block whois information on properties you do not want scrutinized.)
- Blogs that might have been spammed on via comments or hacked should not be flagged as spam. (This is good to see as most blog owner don’t know they have been attacked.)
- Low quality content wrapped in ads will most likely be flagged. (Throughout the document, thin affiliate sites seemed to be the targeted.)
- Google advises not to assume domains containing the given search phrases to be authoritative.
- Google does a good job explaining how websites might have a duplicate homepage (/index.html, default.aspx) and they should not be penalized.
My thoughts above are really only the tip of the iceberg. Most of the information in the document was not ground breaking, but if you read between the lines you can pull out some gems. I will tell you one thing, during my 125 page read, I couldn’t help but feel that this document smelled of the Panda Update algorithm and had a bias against affiliates, but should I really be surprised?

I encourage you to leave your own thoughts below.
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