My site is receiving loads of spammy backlinks by hotlinking to my images. I literally receive thousands of backlinks from these spammy domains.
One example is
.blogspot.com. I have thousands of subdomains hotlinking to my images from
What I want to do is create a rule to stop all hotlinks from the subdomains of .blogspot.com and any other culprit website, but I want to allow hotlinks from the main domain.
For example, in the case of
.blogspot.com, I want to allow hotlinking from
blogspot.com but block hotlinking from a subdomain like
I need help with developing the Regex for this. Thanks, guys for your help in advance.