You can mask your affiliate links by using server redirects. This involves a simple one line addition to your web server’s .htaccess file. And if you’ve never edited this file, it’s as easy as editing a text file.
Link masking makes your affiliate links look clean and neat, plus it makes it harder for your visitor to strip away your affiliate code. Masking your affiliate links will help you make more sales, since anyone who clicks through these special links will be tagged with your affiliate code.