A target web page may embed resources hosted by a source server. However, this embedding may result in compatibility and/or security issues; e.g., the dimensions of the embedded resource may skew the layout of the target web page. Instead, a source web page may be rendered separately from a target web page, and a source region of the source web page (e.g., a region defined by a set of coordinates) may be extracted from the source web page and may be presented in a target region of the target web page. The elements of the source region may be displayed and executed in isolation within the source web page, and may operate within a source domain (e.g., communicating with the source server and accessing cookies stored by the source server), yet may not interact with the elements of the target web page, thereby alleviating many compatibility and security problems.