Here are the top 10 things you need to know.
1. Penguin is all about spam
As a refresher, Google’s Penguin algorithm is designed to identify spammy sites that slip through Google’s other filters.
It was first launched in 2012, and the last update was rolled out in October 2014.
2. It’s real-time
As Gary Illyes of Google’s Search Ranking Team explained:
Historically, the list of sites affected by Penguin was periodically refreshed at the same time.
Once a webmaster considerably improved their site and its presence on the internet, many of Google’s algorithms would take that into consideration very fast, but others, like Penguin, needed to be refreshed.
With this change, Penguin’s data is refreshed in real time, so changes will be visible much faster, typically taking effect shortly after we recrawl and reindex a page.
This is probably good news for sites that get hit by Penguin, as they won’t need to wait for an update for the chance to make changes and recover.
3. It’s granular
According to Illyes: “Penguin now devalues spam by adjusting ranking based on spam signals, rather than affecting ranking of the whole site.”
What does this mean in practical terms? That isn’t so clear.
Search Engine Land’s Barry Schwartz asked Google for clarification, and based on the company’s response, says:
Our best interpretation… is that Penguin might impact specific pages on a site, or it might impact sections or wide swaths of a site, while other pages are fine.
4. It’s in all languages and countries
Nobody escapes the Penguin.
5. It’s part of the core Google algorithm now
Until now, Penguin has been its own entity.
With Penguin 4.0, Google says that “Penguin is now part of our core algorithm,” which it notes consists of more than 200 other unique signals that can affect rankings.
6. There will be no more announcements of Penguin updates
Now that it’s part of the core algorithm and will work in real-time, Google says that it will no longer comment on future Penguin refreshes.
7. The effects probably won’t be seen immediately
It’s not known whether the new Penguin code has been rolled out to all of Google’s data centers.
But even if it has, it could take time before the effects are seen given that there are almost certainly many URLs that will need to be recrawled.
— Gary Illyes (@methode) September 23, 2016
8. It will be difficult to identify Penguin’s fingerprints
Because of Penguin’s real-time nature, it will be increasingly difficult to identify whether ranking changes can be attributed to Penguin refreshes.
— John Mueller (@JohnMu) September 25, 2016
9. Google’s old advice stays the same
According to TheSEMPost’s Jennifer Slegg, a Google spokesperson confirmed that the company has not changed its linking guidelines, and despite rumors to the contrary, has also not changed its recommendation for using disavows.
@glenngabe OK, clearer: no change on using the disavow file. Use it thoughtfully, as always.
— John Mueller (@JohnMu) September 23, 2016
10. Google still wants you to focus on content quality, not SEO
Google’s Illyes closed the announcement of Penguin 4.0 with a reminder…
The web has significantly changed over the years, but as we said in our original post, webmasters should be free to focus on creating amazing, compelling websites.
While this almost certainly won’t put an end to the art and science we call SEO, updates like Penguin 4.0, coupled with the vast number of signals Google incorporates into its algorithm, mean that companies looking to earn and maintain top rankings can’t ignore the forest for the trees.
As TheSEMPost’s Slegg notes, it’s even possible that sites penalized by the last Penguin update two years ago that thought they cleaned up their act won’t see the recovery they hoped for.
As she observed: “A few years back, some ways of building links were seen as fine, while today they are definitely viewed as problematic.
“And some of the sites that previously had high quality links two years ago could be a low quality site today, if the site was abandoned or the site changed owners.”
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