Penguin 3.0 (2014): the link spam refresh and what it means now

What Google changed#

Penguin 3.0 was a refresh of Penguin, the Google filter that targets sites violating its guidelines on links. Search Engine Land reported on 19 October 2014 that Google had confirmed it “updated its Penguin filter on Friday.” Two days later, Google’s Pierre Far gave more detail in a Google+ post, summarized by Search Engine Land: the update was worldwide, and he specifically called it a “refresh.”

A refresh meant Google re-ran the existing algorithm rather than adding new signals. Sites that had cleaned up their links since the October 2013 release could recover, and sites with bad link profiles that Penguin had not caught before could be demoted.

Google never gave this release a number. Search Engine Land wrote that it was the sixth Penguin release and that “we’re calling it Penguin 3.0” because of the long gap since the last one.

When it rolled out#

Google confirmed the refresh began on Friday, 17 October 2014. Far said the rollout would continue for the “next few weeks.” On 1 December 2014, after more ranking changes on Thanksgiving, Google told Search Engine Land that “the Penguin rollout is ongoing, and this is just the effect of that.” Google stated no completion date.

What is known about its impact#

According to Search Engine Land’s summary of Far’s post, the refresh affected less than 1% of English queries, and could affect other languages more or less. That is the only impact figure Google gave. Treat any other number attributed to Penguin 3.0 as a third-party estimate.

What site owners should do#

Penguin no longer runs as a separate system. Google’s ranking systems guide lists it under retired systems, saying Penguin was “integrated into our core ranking systems in 2016.” What Penguin targeted is covered today by Google’s spam policies, which define link spam as creating links “primarily for the purpose of manipulating search rankings.” In practice:

• Do not buy or sell links for ranking purposes, or exchange links excessively.
• Qualify paid, sponsored and user-generated links with the right rel attributes.
• Earn links with content and relationships people would value without search engines.

How to check whether it affected you#

This is historical. Search Console keeps only 16 months of data, so October to December 2014 is long gone from it. If you kept analytics from that period, compare Google organic traffic from the weeks before 17 October 2014 with November and early December. The Google Algorithm Updates timeline lists the updates around it.

Related updates#

• Penguin 2.0 was the previous major Penguin release.
• Penguin 4.0 made Penguin real-time and part of core ranking.
• The original Penguin update launched the system in 2012.