I've added lots of doorway domains over the years and I'm not sure if their presence is helping or hurting the site which they all link to?
I did this before because years ago it seemed like SEO friendly domains ranked very well, so I purchased a lot and turned them into blogs with related content. On each were banner ads pushing people to my main site.
Think of an electronics store that sells dvd players, flat screen tvs, etc online. He wants to rank for "dvd players" and "flat screen tvs" but he can't, so he makes "dvdplayers.tld" and "flatscreentvs.tld" as blogs with relevant content to rank for those keywords and in turn, push traffic to his main electronic shop.
I know this method was popular years ago. I myself bought up a lot of domains.
Now, it seems like my doorway domains rank well but my main site has suffered because of them.
I feel as if Google will only let one of my sites ranks for specific keywords and if it feels one of my doorway domains is better suited, then that domain will rank for a particular keyword, while my main domain will struggle to rank for that same keyword.
I had two ideas.
1. Just delete these doorway domains and pretend they never existed. I'm hesitant because they rank very well and seem to have some juice. Seems silly to just throw them away.
2. Add other external links to sites besides more (even competitors), so it doesn't seem like I show any favoritism to myself. I'm hoping Google would view the blog as a reference site, more than a doorway domain to drive traffic to myself. Sure, it helps others more and me less but in the end, would it help?
Curious to get opinions.
PS: a lot of the sites are hosted on blogger sites. None of them share the same server.
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[edited by: Robert_Charlton at 1:19 am (utc) on Sep 12, 2014]
[edit reason] changed .com examples to .tld, in case these domains actually exist [/edit]