You can use the following URL Rewrite rules to redirect everything but a robots.txt file from one domain to another.
Requirements
- IIS 7.0 or greater
- URL Rewrite 2.0
Explanation: There are actually three rules here and they are listed as follows:
- Robots.txt file rewrite – this rule says to do nothing when a request come through for domain.com/robots.txt
- Non-www – this rule redirects anything non-www.groffskiii.com to groffbox.com
- www – this rule redirects anything www.groffskiii.com to groffbox.com