Buying expired domains for PR, does it still work?

Ive done some experiments within the last few months about expiring domains with PR to see if it is worth your while to find these expired and wiped domains.

My idea why I'd prefer to use expired domains could be the idea that old domains are popular than new domains, and to have immediate PR.

So I attempt to find deleted areas with PR that I could register. One feature of areas I was trying to find was that the domain still had a, and it was still listed in google.

I will not be mentioning the specific domains here as I need to handle the outcomes and stop individuals from making backlinks to these domains.

I registered about 4 domains, some have PR2 and PR3. Some have a few pages found, some have a few thousand. I also ordered several new domains for my new tasks.

I learned that google rarely trips these areas so I need to prime it but with some fresh backlinks. After creating some backlinks to these domains, two domains eventually lost their PR. These two domains have only some pages indexed in google. In one single area, used to do a 301 permanent redirect to the new index page. Its PR was retained by this domain. One important big difference this domain has compared to the other two is that this domain has thousands of pages indexed in google.

In still another domain, I did a 301 and redirect it to a brand new domain. The result is that the new domain got indexed more and faster pages were indexed compared to another new domain I registered at once. However, PR was right down to 0.

There's also a case where used to do a 301 redirect from a vintage deleted domain with PR and never got any benefit from it.

To conclude, there is still conflicting results on whether buying deleted/expired domains. Some works, some won't. However, what appear to work is that

a. Traffic does be contained by old delete domains from existing backlinks. If the old domain has a lot of backlinks, some traffic does be still generated by it.

b. Other search-engines such as for example yahoo and bing don't appear to have an biases against expired/deleted areas.

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