So – what is wvproxy.com? it is proxy site of a company called web visible.
What do they change?
I did a wget of a website and then the website with .wvproxy.com appended and then a recursive diff against those two resulting folders. The changes I saw were URLs in <a> tags and img src tags. For some reason they also changed Phone Numbers and added in some Javascript to log clicks on email address links.
Why are they doing this?
I am guessing it is part of a campaign someone is running.