Systems and methods for performing dual DNS lookup to detect public versus intranet

A method for performing dual DNS lookup to detect a request for a public site versus a request for an intranet site, the method comprising:

• receiving, by a hosted application on a client device on a first network, web page content from a second network via a tunnel connection, the web page content identifying intranet sites on the second network;
• intercepting, by the hosted application, a request made from an application browser executing on the client device within the hosted application to access an intranet site on the second network identified by the web page content;
• performing, by the hosted application responsive to intercepting the request, a first IP address resolution of a first DNS lookup of the intranet site on the first network;
• transmitting, by the hosted application, the request to the second device on the second network via the tunnel connection;
• receiving, by the hosted application, a second IP address resolution of a second DNS lookup of the intranet site performed responsive to intercepting the request on the second network via the tunnel connection;
• determining for the request that the first IP address resolution is different from the second IP address resolution;
• providing, by the hosted application, access for the application browser executing on the client device and within the hosted application to the intranet site corresponding to the request on the second network using the tunnel connection;
• and
• communicating, by the hosted application, the intercepted request via the tunnel connection to a second device on the second network responsive to determining that the first IP address resolution is different from the second IP address resolution.