The purpose of the addon is that will preserve the original content in the database(so could change it in the future), but will display the replacement when rendering the posts(automatically turn keywords, phrases or links you specify into another keywords,phrases or links. You set a list of words and a list of URLs to link them to, and the addon does the rest.
For XenForo, I have founded two options
Keyword Management (Keyword Replace), I try demo and this don't work for me.
[TH] Keyword Replace is unable to handle a large amount of key words and look pretty similar to Keyword Management
word: domain101zz.com replace: domain102yy.net/paht
a post with this hyperlink in
should show this new hyperlink
I will provide more details as necessary.