Duplicate content on a proxy site?

[TFinder]

I have a local client with a 500 page site.
They advertise online and use traditional media like direct mail.
A print media company, Valpak, has started a website
And wants the client to use their trackable phone number
And a proxy website. When I type the proxy domain in the browser
It appears to be client home page at this proxy URL. The vendor
Wishes to track activity on its site to prove their value or something
My question is: is their any "authority" risk to my clients website
By allowing this proxy site??

[Devanur-Rafi]

Hi,

If this proxy website is a clone of the original website and if its not blocked thoroughly from being accessed and found by the search engines, we have a huge problem and this proxy website should be taken down ASAP as this might create issues because of duplicate content especially if the original website is fairly new and the proxy website has some strong SEO factors like domain age, domain authority or page authority etc. Please do write back in case you would like to give some more details about the issue or have queries in this regard.

Best regards,

Devanur Rafi