I opened the site that OP stated above it seems copy-pasted from the website of
https://bitcoin.org/en/bitcoin-core/.
I searched the URL on who.is and this is what I've got.
Expires On 2021-10-17
Registered On 2020-10-17
Updated On 2020-10-24
https://who.is/whois/bitgofly.ioIt's absolutely a scam site. Don't you ever download and input your private key. It might wipe out your entire balance if there is.
If you already downloaded, make sure you didn't transfer your fund there. Uninstall and clean your device immediately, I suspected you might downloaded also a malware that can be lead to hacking your assets.