Google Penguin Update: What It Is and How to Recover

penguin update

Penguin was Google’s filter against link spam. Since 2016 it has run in real time inside the core algorithm, and Google has said its aim is to discount bad links rather than demote sites. This guide goes through the full history, what Google officially defines as link spam, how Penguin differs from a manual action and from the newer SpamBrain link spam updates, when the disavow tool still matters, and a recovery plan built on Google’s own documentation.

full update timeline
Penguin vs manual action vs SpamBrain
disavow rules and file format
step-by-step recovery

// note: This guide is built from Google documentation and reporting by Search Engine Land, Search Engine Journal and Search Engine Roundtable. I have not been hit by Penguin on a client site for this article, and nobody can promise a recovery. Sources are linked throughout and listed at the end.

penguin-timeline.txtsummary

date	release	what changed
2012	Penguin 1.0	targets link spam
Oct 2013	Penguin 2.1	refresh, under 1% queries
Oct 2014	Penguin 3.0	refresh, about 1% queries
Sep 2016	Penguin 4.0	real time, in core
Dec 2022	Link spam update	SpamBrain neutralizes links

// dates per Search Engine Journal, Search Engine Land and Google Search Central.

key takeaways

The Short Version Before the Deep Dive

// 1

Penguin is part of core

Penguin 4.0 (23 September 2016) made the filter real time and part of Google’s core algorithm. There are no more named Penguin refreshes to wait for.

// 2

It discounts, mostly

Google’s Gary Illyes said the new version devalues spam instead of demoting. Bad links are ignored rather than counted against you, though a manual action can still demote.

// 3

Disavow is narrow

Google’s own help page says to use the disavow tool only when many spammy links have caused or will likely cause a manual action, and after trying to get them removed.

THE BASICS

What the Penguin Update Actually Is

Penguin is a Google spam filter aimed at manipulative link building: paid links, link schemes and large volumes of low-quality links pointing at a site.

Google launched it in 2012 as a “webspam algorithm update” to take on link spam and manipulative link building (Search Engine Journal). In the early years a site hit by it had to wait for the next refresh to see any change, which could mean many months of lost traffic even after the links were cleaned up.

People also search for it as “SEO Penguin” or “Google Penguin”. All three phrases point to the same filter.

It helps to be precise about scope. Google’s Gary Illyes was asked in a 2016 podcast whether Penguin should be thought of as a web spam or a link spam system. As reported by Search Engine Land, he said site owners are right to focus mostly on links when dealing with Penguin, and that the question is mainly where your links come from, not what your own pages do.

Target: unnatural, paid or spammy links
Not about: content quality or page speed
Today: part of Google’s core algorithm

penguin-scope.txt

$ what penguin looks at
[yes] paid links and link schemes
[yes] mass low-quality directory links
[yes] over-optimised anchor text patterns
[no] thin content (a different system)
[no] slow pages or broken markup

history

Penguin Update Timeline

Penguin went through several named releases before it became a live part of Google’s core. Link spam enforcement then continued under other names.

Release	Date	Notes
Penguin 1.0	2012	Launch of the webspam update against link spam
Penguin 1.1	26 Mar 2012	First release to look deeper than the homepage and top categories
Penguin 2.1	4 Oct 2013	Affected under 1% of English queries, per Google at the time
Penguin 3.0	17 Oct 2014	Affected about 1% of queries
Penguin 4.0	23 Sep 2016	Real time, part of the core algorithm, last announced Penguin release
Link spam update	Jul 2021	First dedicated link spam update, per reporting from Safari Digital
Link spam update	14 Dec 2022	Used SpamBrain to neutralize unnatural links; about two weeks to roll out; affected all languages

// sources: Search Engine Journal, Search Engine Land, Google Search Central and Safari Digital.

Why the refresh era hurt so much

Before 2016, Penguin ran as a periodic batch process. If a site was caught, the filter stayed on until Google ran it again, so cleaning up links did nothing visible until the next refresh. Gaps between releases were long. That delay is the reason older Penguin recovery stories describe waiting rather than fixing, and it is why advice from 2013 or 2014 reads very differently from advice today.

PENGUIN TODAY

How Penguin Works Since 2016

With Penguin 4.0 the filter became a real-time signal inside the core algorithm, and Google said it would stop confirming future Penguin updates because it is now a constant process (Search Engine Land).

Two changes matter for site owners.

1. It became more granular. Rather than holding spam links against a whole site, it can adjust ranking at a finer level. A site with a mixed link profile is not automatically written off.

2. It devalues instead of demoting. Search Engine Land reported Gary Illyes saying the new Penguin managed to devalue spam instead of demoting, and that Google’s disavow recommendation had not changed but there was less need for it with Penguin (Search Engine Land). In plain terms, spam links are ignored, so they stop helping you, but they should not drag a clean site down.

The practical result: improvements to your link profile can be picked up as Google recrawls the pages involved, instead of months later at the next refresh.

// before vs after 2016

What changed

Before: wait for the next refresh to recover
After: re-evaluated as pages are recrawled
Before: whole-site impact more likely
After: more granular, spam links usually ignored
Before: Google announced each release
After: no announcements, it runs continuously

spambrain

From Penguin to SpamBrain Link Spam Updates

Google did not stop fighting link spam after 2016. It changed the tooling.

In December 2022 Google said it was using SpamBrain, its AI-based spam prevention system, to neutralize the impact of unnatural links. Google added that SpamBrain could now detect sites that buy links as well as sites that exist to pass outgoing links, and that ranking might change as spammy links were neutralized and the credit they passed was lost (Search Engine Land).

Two details are easy to miss:

Neutralize is not penalize. The aim is that unnatural links stop counting. A site that lost rankings after such an update most likely lost the benefit of links it was relying on.
Sellers are in scope too. Detection covers sites used to pass links out, not just the sites that buy them.

Search Engine Journal pointed out that affiliate links inside body text should carry rel="sponsored", because failing to qualify them could expose a site to the update (Search Engine Journal).

// what this means for recovery

Lost credit is lost

If a link spam update neutralized links that were propping up your rankings, removing or disavowing those links will not bring that credit back. Recovery means earning links that deserve to count. Search is also less dependent on links than it once was: Search Engine Journal reported Gary Illyes saying at a 2024 conference that Google needs very few links to rank pages.

link spam policy

What Google Officially Calls Link Spam

Google’s spam policies define link spam as creating links to or from a site mainly to manipulate search rankings. These are the examples it lists.

Practice	What Google says
Buying or selling links	Exchanging money, goods or services for links, or sending products in return for a link in a write-up, when done for ranking
Excessive link exchanges	Partner pages that exist mainly to cross-link
Automated link creation	Programs or services that generate links
Required links	Links in terms of service or contracts that stop the content owner qualifying the link
Text ads and text links	Placements that pass ranking credit
Advertorials and native ads	Paid articles, guest posts or press releases with keyword-rich anchors that pass credit
Low-quality directories	Directory and bookmark links
Widgets, footers, templates	Keyword-rich, hidden or low-quality links spread across many sites
Forum comments	Optimised links in posts or signatures

// source: Google Search Central, spam policies. Table is a paraphrase.

Google also states that buying and selling links is a normal part of web advertising and sponsorship. It is not a violation when the links are qualified with rel="nofollow" or rel="sponsored". The policy is aimed at links that pass ranking credit, not at advertising as such. Google adds that it may act against spam practices that are not on the list, so the list is illustrative rather than complete.

three different things

Penguin, Manual Action and Link Spam Updates

These get mixed up constantly, and the response differs for each.

	Penguin (core)	Link spam update	Manual action
Who decides	Algorithm	Algorithm (SpamBrain)	A human reviewer at Google
Notice	None	Announced by Google on its ranking updates page	Message in Search Console Manual Actions report
Typical effect	Spam links discounted	Unnatural links neutralized	Can demote part or all of a site
Fix	Earn better links over time	Earn better links over time	Clean up, document, request review
Review request	None exists	None exists	Yes, from the Manual Actions report

// unnatural links to your site

Links pointing at you

Google’s help page describes this action as a pattern of artificial, deceptive or manipulative links pointing to your site. Buying links or joining link schemes can lead to it on part or all of a site (Google Search Console Help).

// unnatural links from your site

Links going out

A separate action for paid or manipulative outbound links, such as excessive link exchanges. The fix is to remove them or make them non-passing with nofollow or a more specific attribute.

diagnose

Signs Your Links May Be the Problem

None of these prove a Penguin issue on their own. They tell you where to look.

// check 1

Manual Actions report

Open Search Console and read Manual Actions first. A message there settles the question and tells you whether the action is site-wide or partial.

// check 2

Timing

Did rankings fall for pages that had many new, odd links? Line up the drop date with link growth and with Google’s published ranking update history.

// check 3

Anchor text

A large share of exact-match commercial anchors from unrelated sites is a warning pattern.

// check 4

Link sources

Look for link farms, paid placements, mass directory submissions and sites whose only purpose is to link out.

// check 5

Other causes

Rule out technical problems, a core update or simply lost links. See my crawled, currently not indexed guide for indexing issues.

// check 6

Negative SEO

If you did not build the spam links, someone may have pointed them at you. Read about negative SEO attacks.

A simple diagnostic workflow

Pull the date. Find the day impressions or rankings changed in the Search Console Performance report. Be exact, a week either side changes the story.
Check what else changed that day. Core updates, spam updates, site migrations, plugin updates, robots or noindex changes, hosting moves.
Segment the loss. Is it site-wide, a folder, or a handful of pages? Link-based issues usually trace to pages that attracted or built links. Technical issues usually hit templates.
Inspect the links to the affected pages. Compare their link growth with unaffected pages.
Decide the likely cause. If you cannot connect the drop to links, do not start disavowing. Look elsewhere first.

disavow

The Disavow Tool: When It Still Matters

This is the most misused part of Penguin recovery. Google’s own documentation is cautious.

Google’s help page says the tool is for sites with a large number of spammy, artificial or low-quality links that have caused, or will likely cause, a manual action. It adds that Google usually handles links on its own, so most sites do not need it, and that misuse can hurt performance (Google Search Console Help).

The position inside Google has been consistent for years. Search Engine Roundtable reported Gary Illyes saying that without a manual action you do not need to submit a disavow (Search Engine Roundtable). Search Engine Journal quoted Gary Illyes saying you can ignore toxic links, and that disavowing them is optional if you feel like it (Search Engine Journal).

So the honest summary is this:

Manual action for unnatural links: removal attempts first, then disavow what remains.
No manual action: disavow is generally unnecessary, and Google says it already ignores most spam links.
Links you built or paid for: this is where the tool is meant to be used, to tell Google about links you are responsible for.

Some SEOs still disavow as insurance. That is a judgment call. If you do it, be conservative, because adding natural links to the file can only remove value.

disavow.txt (format example)

# comments start with a hash
domain:spammy-directory.example
domain:link-farm.example
https://blog.example/post-with-paid-link/
# one url or domain per line

// file rules from Google

Plain text, .txt, UTF-8 or 7-bit ASCII
One URL or domain per line, use domain: for whole sites
Max 100,000 lines and 2 MB, each URL up to 2,048 characters
One list per property, a new upload replaces the old one
Can take several weeks to take effect
Disavowed links still show in the Links report
Not available for Domain properties

recovery plan

Google Penguin Recovery, Step by Step

This follows Google’s manual action guidance and common SEO practice. No step guarantees a result.

Confirm the problem. Check Manual Actions in Search Console and compare your ranking drops with link changes. If there is no manual action and no link pattern, the cause is probably elsewhere.
Export your links. Google suggests exporting from the Links report, either top linking sites or latest links. Combine it with a backlink tool, because no single report is complete.
Review the worst first. Google suggests starting with the sites that link most often and with links added in the last few months.
Mark unnatural links. Paid, exchanged or farmed links are the targets. Natural editorial links stay.
Ask for removal. Contact site owners and ask them to remove the link or make it nofollow. Keep a record of every attempt, because Google says to make a real effort before disavowing.
Disavow what you cannot remove. Use domain: lines for domains with many links, and avoid natural links.
Fix outbound links too. If your action was for links from your site, remove them or make them non-passing.
Request a review only if you had a manual action. Explain the specific problem, what you did and the result, and attach documentation of removed links and of any you could not remove. Fix the issue across all affected pages, since Google says a partial fix earns no partial restoration, and do not resubmit while a request is pending.
Build better links. Earned, relevant links replace the spam. My off-page SEO guide covers white-hat options.

// how long

Review timing

Google says most reviews take several days to a few weeks, and link-related reviews can take longer than usual. You get an email when the request is received and another when it is finished. Vendor estimates vary, for example ProfileTree suggests 2 to 8 weeks, so treat any single number as a rough guide.

// what to expect

Recovery is not a reset

If the links were propping up rankings, rankings may settle lower than before even after a successful review. Those links were not earning the position in the first place.

If you want a second pair of eyes on this, see my Google penalty recovery service.

negative seo

What If You Did Not Build the Links?

Fear of competitors pointing spam at a site is as old as Penguin itself. Search Engine Journal reported Gary Illyes saying he had examined hundreds of alleged negative SEO cases and none had been the real reason a site was hurt. John Mueller said in 2024 that such links are often just more visible in tools, which does not make them a problem (Search Engine Journal).

That does not mean you should never monitor. Sudden spikes in referring domains, injected hidden links on your own pages, or hacked content are real problems, and they are a different category from random spam links. My negative SEO guide covers how to tell them apart.

prevent

How to Stay Out of Trouble

Do

Earn links from relevant sites
Vary anchor text naturally
Use rel="sponsored" on paid and affiliate links
Audit your links a few times a year
Keep a record of every link campaign
Check any agency’s methods before they start

Avoid

Buying links to pass ranking signals
Link exchange schemes at scale
Mass directory and comment submissions
Guest posts with keyword-rich anchors as the goal
Any promise of “guaranteed” rankings
Disavowing links just because a tool flags them

myths

Penguin Myths That Refuse to Die

“Penguin will roll out again”

Google has said Penguin is part of the core algorithm. There is no separate release to wait for, so a claim about a new Penguin date is not backed by anything Google has published.

“Toxic score above X means penalty”

Third-party toxicity scores are tool estimates, not Google signals. A high score is a reason to look, not proof of harm.

“Disavow everything bad”

Google says most sites do not need the tool, and that misuse can hurt. Disavow is for links you are responsible for and cannot remove.

“Filing a review fixes algorithmic drops”

Review requests exist only for manual actions. An algorithmic change has no request form.

// how this guide was made

What I Checked and What I Didn’t

I read Google Search Central’s spam policies, the Search Console help pages for the disavow tool and manual actions, Google’s December 2022 announcement and reporting from Search Engine Land, Search Engine Journal and Search Engine Roundtable. I could not open Google’s original 2016 Penguin announcement, so details of it come from reporting on it. I did not recover a Penguin-hit site for this page, and there are no affiliate links here.

faq

Google Penguin Update FAQ

What is the Penguin update?

Penguin is a Google filter against link spam. It launched in 2012 to catch manipulative link building such as paid links and link schemes.

When was the last Penguin update?

Penguin 4.0 on 23 September 2016. Since then it runs in real time inside the core algorithm, and Google no longer announces Penguin updates.

Is Penguin still active?

Yes, as part of the core algorithm, according to Google’s 2016 announcement as reported by Search Engine Land. You cannot check a date because there are no separate releases. Google has since added SpamBrain-based link spam updates, such as the one in December 2022.

How do I recover from Penguin?

Find the unnatural links, remove what you can, disavow the rest as a last resort and build better links. If you have a manual action, document the work and request a review from the Manual Actions report.

Is Penguin the same as a manual penalty?

No. Penguin is automatic and gives no notice. A manual action is applied by a Google reviewer and appears in the Manual Actions report in Search Console.

Does Penguin penalize or devalue?

Since 4.0, Google’s Gary Illyes said it devalues spam instead of demoting. Manual actions can still demote.

Does the disavow tool fix Penguin?

Not by itself. Google says the tool is for cases where spammy links have caused or are likely to cause a manual action, and only after trying to remove them. Results are not guaranteed.

How long does disavow take to work?

Google says a valid file can take several weeks to take effect, as it recrawls and reprocesses pages.

Can I use a Penguin checker?

There is no official Penguin checker because it is not a separate system anymore. Use Search Console and a backlink tool to review your links. See backlink checkers compared.

Can competitors hurt my site with spam links?

Google representatives have repeatedly said they ignore such links and that they have not found real negative SEO cases that explain a drop. Monitoring is still sensible, especially for hacked content or hidden links on your own pages.

Do nofollow links count as link spam?

Not when they are used as Google describes. Paid links qualified with nofollow or sponsored are not a policy violation.

sources

Sources Used on This Page

// keep reading