Hi Guys ,
When I check my website with with check-your-website.server-daten.de I faced this error ,
anyone here can help me how to fix it ? I really doesnt know what it is !
my website is : دانلود آهنگ
this is my error : HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
here is the image of my error