I just picked up a client who had built a large set of landing pages (1000+) and built a huge amount of spammy links to them (too many to even consider manually requesting deletion for from the respective webmasters).
We now think that google may also be seeing the 'landing pages' as 'doorway pages' as there are so many of them 1000+ and they are all optimized for specific keywords and generally pretty low quality.
Also, the client received an unnatural links found email from google. I'm going to download the links discovered by google around the date of that email and check out if there are any that look specifily bad but I'm sure it will be just one of the several thosand bad links they built. Anyway, they are now wanting to clean up their act and are considering deleting the landing/doorway pages in a hope to
a. rank better for the other non landing/doorway pages (Ie category and sub cats) but more to the crux of my question..
b. essentially get rid of all the 1000s of bad links that were built to those landing/doorway pages. - will this work? if we just remove those pages and use 404 or 410 codes will google see any inbound (external) links to those pages as basicly no longer being links to the site? or is the TLD still likely to be penilized for all the bad links coming into no longer existing URLs on it?
Also, any thoughts on whether a 404 or 410 would be better is appreciated. Some info on that here: http://support.google.com/webmasters/bin/answer.py?hl=en&answer=64033
I guess another option is the disavow feature with google, but Matt Cutts video here: http://www.youtube.com/watch?v=393nmCYFRtA&feature=em- kind of makes it sound like this should just be used for a few links, not 1000s...
Thanks so much!!!!