Tell me, is there a way to search a piece of code within the HTML pages for all sites using Google (or any other search engine)?
Before, it seems, was the opportunity through keyword inhtml:bla-bla-bla
But now it is, in my opinion, is not working or I am doing something wrong.
Well, for example, want to find all the sites in the expansions that are embedded metric in Google Analytics or Yandex-metric. That is, you need to look for websites where on the page is "/mc.yandex.ru/metrika/watch.js"