Welcome to WebmasterWorld Guest from 18.104.22.168
Q: Can I disavow something.example.com to ignore only links from that subdomain?
A: For the most part, yes. For most well-known freehosts (e.g. wordpress.com, blogspot.com, tumblr.com, and many others), disavowing "domain:something.example.com" will disavow links only from that subdomain. If a freehost is very new or rare, we may interpret this as a request to disavow all links from the entire domain. But if you list a subdomain, most of the time we will be able to ignore links only from that subdomain.
Could anyone please share the views if we want only 1 link from the home page of a sub domain and disavow rest of all hundreds of backlinks from that sub domain?
One common issue we see with disavow requests is people going through with a fine-toothed comb when they really need to do something more like a machete on the bad backlinks. For example, often it would help to use the "domain:" operator to disavow all bad backlinks from an entire domain rather than trying to use a scalpel to pick out the individual bad links. Thatís one reason why we sometimes see it take a while to clean up those old, not-very-good links.
I'd probably set a site up and do a 301 redirect from the example.blogspot.com site index page to the new site's index page.