100+ PPC Landing Pages Linking To Main URL... Hurting My SEO?

[jfishe1988]

I started another thread around this question but don't think I was articulate enough. So, I have over 100 various landing pages that I use for targeted PPC. I don't really have any interest in these pages amassing their own SEO value; I simply use them for my PPC accounts. However, they all link back to my home page. Is this considered a link farm? And, if so, is the best option to simply add a nofollow attribute to all the links pointing to my home page? Would there be any reason to keep the links as follow? I don't think they're giving my site any SEO value but I'm concerned that they could be harming it instead.

Any expert advice would be much appreciated.

[TheKatzMeow]

It depends.

I have a few questions.

1. Are these links all coming from different domains (e.g. carparts.com/ppc-page, waterbottles.biz/landing-page)?
2. Are all these links pointing to the same page on your site?
3. Do these pages link to each other? (i.e. waterbottles.biz links to all your other PPC pages and all your other PPC pages link to it).

If the links are coming from different domains, not linking to each other, and linking to different pages on your website, that all looks pretty natural and non-link farmy to me.

The question for me, would be what value do these links to your site deliver? Are they distracting the user from the main call to action? Are you hoping that these links will tell users you provide PPC services? Just curious.

[jfishe1988]

To answer your questions:

1. Yes, these are all different domains (ie. southcarolina-waterbottles.biz, tennessee-waterbottles.biz) but all these domains are hosted on the same ip address.

2. Yes, all the domains basically have the same content and the same links to the same pages on my main url. The only difference on the pages is some verbage that distinguishes each by state.

3. These pages do NOT link to each other; only to my main urls.

According to my SEMRUSH backlink audit, which most of these links show up on, these links have high toxicity markers, and most of them are identified by their ip network. I'm worried that Google has identified these and may be doing more than just devaluing them, which would really be the best case scenario. I think they may possibly be harming my overall rankings because of these links. It seems impossible to know.

What do you think, based on the information above?