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Since Sitefinity stores all of its pages inside of the database and the site is blank when it is first installed, Sitefinity does not have a home.html page created out of the box. In your project, you have a file called home.html and when you use the URL rewriter to make another page called home.html, you can that unique error because home.html already exists in your project.
Based on your input, you'd want to link to an external page rather than using the URL rewriter because you already have a page that is made. To link to an external page, follow these instructions:
- Login to the CMS and click on the Pages tab
- Create a new page
- On the properties tab of the page and click External Page under Page Type
- Fill in your external page's name and location
The attached screenshot will give you more details on how this is done. The URL Rewiriter would be used if you already had a page made, such as ~/products/lights/lightblubs.aspx and you wanted to shorten the URL to ~/lights.aspx. The rewriter is also used for SEO purposes because the human readable URLs are searchable. Essentially, these alternate URLs make a page easier to find and search on the internet.
I hope that I have clearly answered your question regarding the URL rewriter. Feel free to contact us if you have any other questions.
the Telerik team