Can you please elaborate further on the need to remove the domain from the URL?
The URLs on the frontend cannot be relative and must always be absolute therefor including the domain.
If your concern is whether developing on one environment using a certain domain, which you want to change later on the hosting phase will break the links I can assure you that it will not. Sitefinity is resolving these URLs dynamically. You can read more about this in our documentation article: http://docs.sitefinity.com/for-developers-resolve-dynamic-links
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