Google April 11 took its Panda search algorithm change global, pushing down low-quality Websites from content farms and boosting rankings for high-quality sites.
11 took its so-called Panda search algorithm upgrade global to emphasize high-quality
Websites over lower-quality destinations, and added signals based on user
feedback to improve results.
been taking a lot of flak for surfacing too many spammy, irrelevant results,
particularly from content farms that exist as traffic bait and offer little
users' concerns, the search engine in February rolled out
the algorithm tweak only in the U.S.,
targeting Websites that copy content from other Websites and those that provide
little value for searchers.
target was content farms, ideally targeting sites such as Demand Media's eHow,
which produces both solid content and low-quality content.
Over a month
into the change, Google Fellow Amit Singhal, who heads the company's search
efforts, said searchers are finding better results and many publishers are
getting more traffic. High-quality sites, or those with original content and
information such as research, in-depth reports and analysis, are seeing
the results, Singhal and his team not only turned on the Panda upgrade for all
English-language Google users, but added new user feedback signals to help
people find better search results.
Google is beginning to incorporate data about the sites that users block into
To get this
data, Google built
a Personal Blocklist Chrome extension,
which lets people block Websites from their Web search results on Google.com,
and added a tool directly on Google.com to hide results
for future searches.
said it is ferreting out the "long tail" of low-quality Websites to
return higher-quality results.
company said these new signals affect only about 2 percent of U.S. queries,
compared with almost 12 percent of U.S. queries for the first wave of Panda
our testing, we've found the algorithm is very accurate at detecting site
quality," Singhal explained
in a blog post. "If you
believe your site is high-quality and has been impacted by this change, we
encourage you to evaluate the different aspects of your site extensively."
expand to additional languages, once it has assessed how its new changes fare. Search Engine Land
goes through the changes with
a fine-tooth comb.