[[File:WebPageTree.png|700px|thumb|center|Site Map Tree]]
IntuitionIntuitions:
*We treat each internal page as a tree node
*Each node can have multiple linked children or none
E:\projects\listing page identifier\Internal_Link\Internal_url_DFS.py
'''Note''': the recommended maximum depth input is 2. Since our primary goal is to capture the screenshot of the portfolio page (client listing page) and this page often appears at the first depth, if not, second depth will be enough to achieve the goal, no need to dive deeper than the second depth.
===Web Page Screenshot Tool (IN PROGRESS)===