I looked into the db. But I am not sure i exactly understand where to search for.
Is there a documentation of the tables available somewhere?
I found the Domain name of the given site in dns_isp_dns. When I search for the appropriate doc_id in table "dns_dep" I found two entries with child_doc_type 1018. Checking for th aproppiate child_doc_ids in table dns_a shows one entry with www as host and one with www2. Both entries existed in the past but where deleted in the ispconfig backend.
If the info is intresting: The tabel del_status is empty.