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I created a new domain for testing purpose for another domain which has a few years of history and gets crawled pretty frequently by Google robots. I redirect all requests for the original domain to the new domain, but after a few days I switched back to the original domain by redirecting.
Now the problem is that now the original domain gets much less crawled and visits throught Google search engine are reduced greatly, even after a week not coming back. I already shutup the newly created domain, but it seems there is a large number of pages for the domain which were indexed and they are still there and their caches still can be visited.
I reckon my domain is getting penalty for duplicate contents. Am I right?
If so, how may I thoroughly eliminate the effect of the duplicate domain.
Or should I send a reconsideration request to Google?
Can anybody give me any suggestions or comments? Thanks in advance.
...but after a few days I switched back to the original domain by redirecting.
I don't understand the second redirect. I'd suggest you take the new domain offline and be sure that you've removed the redirect from the orginal. Then the original domain should resolve all its URLs normally, just as it used to.
One further big suggestion - after that, don't do anything more for a while. Once the new domain does not resolve, and the old domain does resolve just as it used to, Google should eventually figure it out. That would occur after they are done checking things out quite thoroughly because your recent changes have most likely raised some trust questions.