what the fuck
2017 some money invented a new “standard” for websites … and when you dont obey your logfiles will be plasterd with 404’s …
so what to do?
#about the ads.txt User-agent: * Disallow: /ads.txt
in your robots.txt … see more
second put a new *.txt file in your root directory wich contains
placeholder.example.com, placeholder, DIRECT, placeholder