Hi zhang,
This is directly from their HTML page source (on the .space domain). Check this out:
<!DOCTYPE html><!-- Last Published: Mon Nov 19 2018 20:04:57 GMT+0000 (UTC) --><html data-wf-domain="
www.gatetrustint.com" data-wf-page="5b182c4306851810644a9ce7" data-wf-site="5b182c430685181a8b4a9ce6">
<!-- Mirrored from
www.gatetrustint.com/ by HTTrack Website Copier/3.x [XR&CO'2014], Fri, 23 Nov 2018 17:41:12 GMT -->
As you can see, they've copied the real site using HTTrack and weren't smart enough to remove this tag. I wouldn't touch it, personally.
Good luck,
TRBD