Yes they still work. The tiered link building is still kicking google's a**
Yes, it's still works. I advise you to build manually to keep it natural on google eye. Also, you need to build proper tier 2 links to add more power to it.
Yes, it's still works. I advise you to build manually to keep it natural on google eye. Also, you need to build proper tier 2 links to add more power to it.
They still work, if you do it quality>quantity