I did a search on the phone number posted in the footer of the site in question. It revealed the same number being using on another scam site as listed here:
https://onlinebitz.net/finexgen.com-review - a review of a scam site
It is a HYIP site.
They are even using that UK certificate image as a show of "legitimacy" -
https://investmentmk.biz/?a=cust&page=about - this is known to be a classic method used by scammers.
Domain lookup yield this information:
Registrar NameCheap, Inc.
IANA ID: 1068
URL: http://www.namecheap.com
Whois Server: whois.namecheap.com
Registrar Status clientTransferProhibited
Dates 5 days old
Created on 2021-06-26
Expires on 2022-06-26
Updated on 2021-07-01
Namecheap should be informed of the same. Please make sure at least some of those reading this thread reports this to the registrar so they get taken down.