I would like to know how many web pages on the web are using JavaScript, in percentage.
The metric I’m looking is the number of pages having a <script type="text/javascript"> tag.
I’m pretty sure someone (like Google) did studies on that and publish the results !
The goal is to have an idea on how much JavaScript is widespread on the web landscape.
Google published Web Authoring Statistics a few years ago. They found then that the script tag was found in roughly half the pages they surveyed in a sample of over a half-billion documents.
Since the web has grown a bit since they did the survey, it’s probably safe to invoke the spirit of Carl Sagan, and answer “Billions and Billions!”