A storage medium and computer that determine a tree representing links embedded in documents, create a depth indicator having a size proportional to the size of the tree, and display the depth indicator with a root link in a root document. The tree is determined by repeatedly probing the links to retrieve the documents. In various embodiments, the size of the tree may be the number of levels in the tree or the number of links in the tree. The depth indicator may include representations of the links and represents a possible future context of the root document. In various embodiments, a graphical representation of the tree may be displayed, hover help that includes the tree size may be displayed, and an indication of a condition reported by a document may be displayed. In various embodiments, the condition may include a message, updated content, new content, or an error.