Where: https://urlquery.net/report/6c510938-25f9-4f54-82d7-f2eb4313a744
Read on background: https://www.bluecoat.com/en-gb/security-blog/2010-02-04/how-suspicious-are-dynamic-dns-sites
and http://news.softpedia.com/news/DynDNS-Abused-by-Malware-Pushers-147269.shtml
and https://umbrella.cisco.com/blog/2013/04/15/on-the-trail-of-malicious-dynamic-dns-domains/
or https://www.alienvault.com/blogs/security-essentials/dynamic-dns-security-and-potential-threats
8 problems: https://mxtoolbox.com/domain/maxjung.ddns.net/
issues: https://privacyscore.org/site/35083/
Example on IP → https://toolbar.netcraft.com/site_report?url=http://kuenstlerseele.net
and https://toolbar.netcraft.com/site_report?url=maxjung.ddns.net%2F
F-status grade and recommendations: https://observatory.mozilla.org/analyze.html?host=maxjung.ddns.net
last 10 reports: https://urlquery.net/report/ef9703d1-e0d5-440b-b39c-9b6ffcd9d844
polonus