Explanation of "Baidu accounts for 74.88% of Chinese search engine traffic"

Event:

"According to the latest statistics, the proportion of traffic that a Chinese search engine brings to websites is 74.88% for Baidu, 13.54% for Google, and only 3.94% for Yahoo. "Cnzz (China webmaster Alliance) announced this data at its" search engine marketing conference "on June 14, September 6.

The sample of this data sample is 0.663 billion, and the sample is from the cnzz Statistics System website.
Previously, according to data from a third-party Research Institute, Baidu's user market share was about 67%.

Of course, Baidu is most happy with this result.

My question is, why is there so much difference between iResearch and AI? Whose statistics are more comprehensive?

Please think about it. cnzz (China webmaster Alliance) collects a large number of personal webmasters, many of which contain spam websites. Does the cnzz statistics verify another problem? The Anti-Spam capability of Baidu is inferior to that of Google and Yahoo!

The market share of the statistical search engine is an arduous task, but in terms of statistics, the statistical samples must take into account the various user groups. iResearch has done this to a certain extent, cnzz does not do this.

Although cnzz is an advantage to count the market share of search engines based on website visits, the limitation of its statistical sample determines that this is a one-sided result!

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