If you want to disable tracking for specific users, you can do it using cookies.
Permanently for specific users
Set a cookie with the name of vt_stop and value true and our script won’t work in that browser for the lifetime of the cookie.
Note that doing this doesn’t affect other users.
During development or to test possible script interferences
You can load any page with the following URL params to disable VT pixel for the current page load. vt_stop=true
For more detailed information during development read this article.