Corrected: Google Launches Algorithm To Fight Content Spam

SpamEarlier this week, Google’s Matt Cutts announced they will be releasing a new on-page spam detection technique to reduce the amount of content spam we see in Google. Matt Cutts just confirmed the rumors that this algorithm is indeed live.

Matt said the change to their algorithm to prevent low quality scraper content in Google’s index was “approved at our weekly quality launch meeting last Thursday and launched earlier this week.” Based on tracking Webmasters, I believe the rollout was on January 26th and 27th, I have more on that at the Search Engine Roundtable and there is more coverage at Techmeme.

As you know, this algorithm change should be impacted content farms and low quality sites. It goes beyond the low quality site’s impacted in the May Day update and tackles other low quality signals.

Who does this impact? Matt Cutts explained:

This was a pretty targeted launch: slightly over 2% of queries change in some way, but less than half a percent of search results change enough that someone might really notice. The net effect is that searchers are more likely to see the sites that wrote the original content rather than a site that scraped or copied the original site’s content.

I assume we will see more complaints from those impacted recently by this algorithm change in the upcoming weeks.

Postscript: I have an update to this story at Google’s Content Farm Algorithm Not Live Yet. In short, the content farm algorithm is not live. What is live is the algorithm to drop out low quality scraper content.

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Related Topics: Channel: SEO | Google: SEO | Google: Web Search | Top News


About The Author: is Search Engine Land's News Editor and owns RustyBrick, a NY based web consulting firm. He also runs Search Engine Roundtable, a popular search blog on very advanced SEM topics. Barry's personal blog is named Cartoon Barry and he can be followed on Twitter here. For more background information on Barry, see his full bio over here.

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  • Pittsburgh SEO

    I applaud Google’s efforts to make content farms and scrapers irrelevant. Scrapers and others who are screaming bloody murder need to remember that it is Google’s job to give users the best answers to their searches. It is the job of the business or content creators to try to be the best answer. It is the job of internet marketers to make sure everyone knows our client has the best answer, not to trick Google and users. Just like in the “real world”.
    So as always, it is all about the content (or product) – as it should be.

    I wonder if Google has paid link directories on the to do list? Seems like that is the only way for a site to buy credibility rather than earning it.

    The risk to legitimate aggregators and such is a concern, but I hear there are some pretty bright folks at Google so they should be able to figure it out.

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