Igor Rondel, the Principal Development Manager of the Bing Index Quality, posted on the Bing Search Blog news that they released a spam filter a “few months” ago that impacted about 3% of all search queries. The spam filter was aimed at URL keyword stuffing.
Igor Rondel it targeted spammers stuffing keywords in the URL or domain in an effort to artificially boost their rankings in Bing. He specifically documented the types of URLs Bing looks at with this:
How does Bing detect this form of search spam? They wouldn’t say exactly but did document signals they look at to detect the spam, such as:
With extreme transparency for a search engine, Bing shared the impact this spam filter had on their search results. They said it impacted about 3% of all search queries. Specifically impacting about 5 million sites, comprising around 130 million urls. They even documented some example sites impacted by this spam filter.
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