The latest version of Google’s “human rater handbook,” known as search quality evaluation guide, has leaked once again, and gives us more information oh how Google determines quality.

Version 5.0 of the quality guideline handbook is dated March 2014, and contains updated information about expertise, authority, trust and reputation when rating websites and their pages, which is referred as E.A.T.

Google’s Latest Search Quality Evaluation Guide

Google’s hires a team of human raters help rate sites for quality. They do so as part of a feedback loop, oftentimes assessing proposed tweaks to the algorithm before they are rolled out.

Version 5.0 of the guidebook emphasize more about how expertise, authority, and trust can play an important role in determining quality and hence ratings.  Although this is not a new concept, the guidebook explains this in details with a few examples.

  • High-quality medical guidance should come from individuals or associations with proper medical knowledge or authorization.
  • High-quality medical information or advice should be written or delivered in a proficient style and should be edited, reviewed, and updated regularly.
  • High-quality financial guidance legal consultation taxes advice, etc., should come from professional sources and be maintained and updated.
  • High-quality advice pages on topics such as home remodeling (which can cost thousands of dollars) or advice on parenting,  which can impact the future happiness of a family must also come from expertise sources which users can trust and follow.
  • High-quality pages on hobbies, such as photography or learning to play a guitar, also require expertise knowledge.
  • When a website has more than one authors on different pages, page level checks are important. Website level check is required when all the content on the website is produced by the same person.
  • The website is also not trustworthy if the authors have poor writing skills and no expertise on the subject.