Code: Select all
https://optinmonster.com/
It uses at least the following objects to help "conversion rates":
Code: Select all
https://a.mstrlytcs.com/v1/a?ty=impression
https://a.optmstr.com/app/js/legacy-api.min.js
https://api.optmstr.com/v1/optin/11167/503083
https://a.optmstr.com/app/js/api.min.js