Panda 4.2 (2015): the slow Panda refresh and what it means now

What Google changed#

Panda 4.2 was a refresh of Panda, Google’s filter for low-quality content. Google told Search Engine Land on 22 July 2015 that it had “pushed out a Google Panda refresh this weekend,” the first confirmed Panda refresh since Panda 4.1 in September 2014. A refresh re-ran the filter, so sites hit by earlier Panda releases that had improved could recover, and others could be demoted.

What was new was the pace. In an interview published on 5 August 2015, Google told Search Engine Land it was doing “the slowest rollout ever,” taking months rather than days, and that it was shifting Panda towards more continuous, gradual rollouts incorporated into its core ranking algorithms. Because the rollout went page by page, pages on the same site could be affected at different times, although Google said Panda remained a site-wide action.

Google did not call it Panda 4.2. Search Engine Land listed it as “Panda Update 30,” also known as Panda 4.2, following the numbering the industry had used for earlier releases.

When it rolled out#

Google said the refresh began over the weekend before 22 July 2015, and Search Engine Land dated it 18 July 2015. The exact day is approximate. Google said the update could take months to fully roll out and never stated a completion date.

What is known about its impact#

Google said the refresh affected about 2% to 3% of English language queries. It gave no other figures. Because the rollout was so slow, few site owners saw sharp changes at the start, which Search Engine Land noted was what Google intended.

What site owners should do#

Panda is no longer a separate system. Google’s ranking systems guide lists it as retired: it “evolved and became part of our core ranking systems in 2015.” Content quality is now judged by those core systems, so Google’s current guidance on helpful, reliable, people-first content and on core updates applies:

• Assess the site as a whole against Google’s helpful content self-assessment questions.
• Improve content in meaningful ways; avoid quick fixes such as removing page elements.
• Delete content only as a last resort, if it cannot be salvaged.
• Expect improvements to take several months to show in rankings.

How to check whether it affected you#

This is historical. Search Console keeps only 16 months of data. If you kept analytics from 2015, compare Google organic traffic before 18 July 2015 with the following months, bearing in mind the slow, page-by-page rollout. The Google Algorithm Updates timeline lists the updates around it.

Related updates#

• Panda 4.1 was the previous confirmed Panda refresh.
• The May 2015 quality update changed how core ranking assessed quality.
• The January 2016 core update was the next confirmed core change.