• Sites can simply record this for their own purposes or redeploy ads in such a way that the detected ad blocker won’t catch.
  • In addition to detecting these new and increasingly common measures being taken by advertisers, the researchers suggest some ways that current ad blockers may be able to continue functioning as intended.
  • One way involves dynamically rewriting the JavaScript code that checks for a blocker, forcing it to think there is no blocker.

    Source: https://techcrunch.com/2017/12/27/thousands-of-major-sites-are-taking-silent-anti-ad-blocking-measures/