Thank you for the answer & I’m sorry for the delay – I wasn’t aware that the mails account settings had been erased which led to no incoming mails shown in the mailbox.
My question was:
Recently I had a surge of visitors/page views [~100 times of average] but sadly I wasn’t able to find out from where these visits came and which article(s) they were looking up / reading. Or which link they were following (came from?)
The answer is not dealing with what I asked.
Plus:
As long as I don’t know who is visiting from where I am not able to block their access. So I’m back at square one ….