So how does this new algorithm distinguish good sites from bad? Comparing sites known for original content with sites that contain duplicate, low-quality or irrelevant content. Google also had help from external testers who reviewed a number of sites.
Some site owners have complained of a sudden drop in their positioning and loss of traffic up to 40 percent within 24 hours of the new algorithm implementation.
This update will reduce the ranking of sites that do not contain useful content, so here is a checklist of what your site must include:
- Original content
- Authoritative information
- Added value
- Significant user engagement with links and social sharing
- Valuable content across the entire site
Note that as this is an algorithmic change we are unable to make manual exceptions, but in cases of high quality content we can pass the examples along to the engineers who will look at them as they work on future iterations and improvements to the algorithm.Sources:
Google Farmer Update: Quest for Quality - SEO-Blog
Google Panda Update Causes 40% Traffic Loss for Websites. Have You Been Impacted? | ineedhits