WordPress versus Website Builders:
Is WordPress Doomed?
What Is a Website Builder?
Online tools (also offline) that typically allow the construction of websites without manual code editing.
GeoCities (acquired by Yahoo! in 1999) was an early popular website builder.
Usage Stats (w3techs.com)
Quarterly Trend (w3techs.com)
Side Note:
What a Website Builder Thinks of WordPress
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