One of my competitor website has thousands of links from websites that look spammy.
From page http://mcpartsinstock.com/barometry61986.html

They are linking to a dead subdomain of their own website created with the name of the linking site
http://mcpartsinstock.comcorporateeventideas.COMPETITOR.com
They have thousands of these links, so must be a tool based linking & its actually working.
My question is how are they doing it & why is google not penalising these spammy links.
From page http://mcpartsinstock.com/barometry61986.html

They are linking to a dead subdomain of their own website created with the name of the linking site
http://mcpartsinstock.comcorporateeventideas.COMPETITOR.com

They have thousands of these links, so must be a tool based linking & its actually working.
My question is how are they doing it & why is google not penalising these spammy links.