I don't know it because I've stopped checking backlinks long time ago. And honestly I feel much better without knowing it, because if you have X websites then for sure there will be some links you don't want. Not to speak of content that has been stolen and knowing of such theft always gives me "collywobbles" - I now just try to avoid that by don't looking at it too closely.
But what happened to me this year and where I had to take action:
- DMCA notice from a french TV station about a 5+ years old soccer article written in hungarian (I'm sure it's a false positive but you need a new email address each time you want to know more details and reply to the case, so I just deleted the article)
- forwarded email from webhost from Western Union about trademark infringement (since when am I not allowed to mention casino deposit methods? Anyway, what do I want to discuss with their legal department, so again I just deleted the article)
While it's certainly not the perfect strategy to grow my websites, this gives me a lot of peace of mind and keeps me long-term sane.
"Semper paratus!"
My BTC Address: 1F11EJvSAab5vMQgGWGQMASr9T7LCkZjvb