@tux Thanks for your response. For example, I don't see the posts from persadon.com or khiar.net, which are Iranian instances. Two other German instances seems to be connected, for example you can see in this hashtag of "Iran" in Persian script: https://social.tchncs.de/tags/%D8%A7%DB%8C%D8%B1%D8%A7%D9%86
