Website structure is a framework of the whole web source. It is a hierarchically organized presentation of all website elements, including sections and subsections.
Most of websites are organized according to the block principle: the headline is above, the menu is on the left, advertisement is on the right and information is in the middle. The structure can be either complicated or simplified.
Try to think over website structure before starting the website development process. This precaution will prevent you from further complications. Although ideal website navigation is impossible, you can make it close to ideal with proper planning and