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Hi there, Our service at fotograf.de is a shopsystem for professional photographers. The customers can build their own website with our tool including an onlineshop to sell their pictures. We have a lot of links from our customers linking to our homepage. The links come from subdomains of our domain and from external domains. We are now thinking about changing the anchor text of half of the links (round about 300.000 links). Do we have to fear a penalization of Google for changing so many anchor texts at once? Do we get better rankings if we choose a more optimized anchor text or does this have no effect because most of the links are from subdomains (each customer has its own subdomain) of our domain? Thanks for answering! Sebastian

Hi there, we have a lot of customers linking to our homepage from a subdomain of our domain or from an external domain. From SEO point of view is it best that they all only have one DoFollow Link and the rest of the links are NoFollow? Or does this have no matter at all? The problem is that we have like 900.000 links but only from round about 1000 different root domains. If we put like half of the links on NoFollow our ratio of links/ different root domains gets better. Thanks for answering! Sebastian

Our service at fotograf.de is a shopsystem for professional photographers. The customers can build their own website with our tool including an onlineshop to sell their pictures. Here is my question: One part of the customers use subdomains of our site like photographers.fotograf.de. On each customer website we include a backlink to our homepage www.fotograf.de. From SEO view is it better to set these links as NoFollow Links? Or should we put one Follow Link on the starting page on each site and on the other pages only NoFollow Link? Are these links bad for our SEO regarding link diversity because they all come from one root domain? Thanks for the answers! Sebastian