There is a domain called as abc.com and it has been 301 redirected to a domain called as xyz.com. But there is a still running subdomain in the previous domain. i.e subdomain.abc.com. What do you think? Is this wrong or any problem in this? Whether it should be continued or tell me any advantages or disadvantages it might give. Thanks
A subdomain exists as a separate entity. If the content of the subdomain is not a duplicate to the main domain, there should be no problem with it.