Google Releases Annual Search Spam Report - Search Engine Journal

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Google has published its annual report on search spam revealing SpamBrain, a machine learning-based spam identification system, took action on six times as many spam sites in 2021 as it did in 2020.

By identifying these sites, Google claims a 70% reduction in hacked spam and a 75% reduction in gibberish spam on hosted platforms.

By recognizing sites with disruptive or malicious behavior, Google was able to keep 99% of searches spam-free.

SpamBrain Demonstrates Continued Improvement Of Google AI

Though Google unveiled its spam detection system in 2018, this report marks the first external reference to it as “SpamBrain.”

Using machine learning, this AI platform has become more effective at detecting and nullifying spam, while evolving to address new spam types and prevent abuse.

This includes the ability to identify sites that have been hacked or otherwise compromised to install harmful recording software on users’ machines.

Another area of improvement has been in identifying gibberish spam sites consisting of meaningless text filled with keywords.

Black hat SEO professionals use these in an attempt to boost page ranks, sometimes even spending money on spam links to trick search engines into raising PageRank quality scores.

Google Committed to Search Quality and User Safety

With the goal of...

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