Systems and methods of determining compliance of content in a website or web application are disclosed. The systems and methods comprise a compliance tool to retrieve data associated with website or web application content. The compliance tool can scan the data to determine references to network locations. The compliance tool can compare the references to one or more approval rules to determine whether the references comply with the approval rules. A report can be compiled and outputted that indicates which references comply and which references do not comply with the approval rules. A user can have the option to add non-complying references to an approved list. The compliance tool can further remove non-complying references from the website or web application data and/or register non-complying references with a firewall.