Abstract: In one aspect, a computerized-method implemented by at least one server include the step of providing a web-page document visual editor. The method includes the step of providing a web-page and website analysis engine, which does automated webpage and website analysis. The method includes the step of placing, with the web-page document visual editor and the automatic analysis engine, an advertisement selector in a web page document. The method includes the step of identifying one or more advertisement attributes of the web-page document. The method includes the step of setting a location of an advertisement block in a display of the web-page document with respect to an element of the web page document. The method includes the step of generating a global tag, wherein the global tag comprises a system instrumentation JavaScript code, and wherein the global tag retrieves a list of relevant selectors. The method includes the step of inserting the global tag into the web-page document.