Not every DNS query is going to be followed by a HTTP or HTTPS connection. You also have queries for other protocols; queries which are never followed by a conn

Not every DNS query is going to be followed by a HTTP or HTTPS connection. You also have queries for other protocols; queries which are never followed by a connection because the response was "this name doesn't exist"; "leaked" queries for internal hostnames; queries which were just to check if a name exists; and reverse (PTR) queries.