AEM makes a distinction between the Resource Path and the URL. Developers will often treat these as the same. However, there are some critical differences between them, that if you are not paying attention to, you will run into problems. In the article “Resource path vs. URL and rewriting links” by Jorg Hoh, Jorg explains the differences between the Resource Path and the URL when it comes to link rewriting, and how one becomes the other, in both directions. Link rewriting can end up being a colossal pain if you don’t know what you are doing. And even if you do know what you are doing, it can still be a bit of a pain. 