URL stands for Uniform Ressource Locator. URL is an address which allows to access a webpage by keyboarding it or pasting it in a browser address bar.
For instance, the URL of that page is :
An URL can be embedded in a marketing message and destinated to be used or clicked. It’s the landing page URL.
Redaction and apperance of URLs play a marketing role when seen by web users.
An URL also takes a part in natural indexing and is an element of SEO. See URL rewriting on this topic.