VirusTotal has two engines flagging it, one as phishing, one as malicious. [1] It appears someone / something triggered a scan for this domain a while ago in urlscan [2] There may be a reference to http://127.0.0.1/ in part of your site [3] which could trigger a rebinding attack warning but it isn't clear if that is an issue. Your domain does not show up in SafeSearch so I would assume Google is querying 3rd parties like VirusTotal/urlscan.
One of the sites you link to also shows up as malicious. [4] Consider removing that link and then scan your site again in VirusTotal to see if there is any improvement.
My pleasure. Good luck with finding the root cause and getting your site in good terms with the search engines. There are other sites for scanning URL's, I just don't remember them off the top of my head.
One more thing you might consider is grepping through the git repo that contains all of your sites code and grab all the links to external URL's out of it to scan on VirusTotal and urlscan.