If this "double" situation, arises just for one or two days, no harm will really happen.
If it is going to last more, than you have to look more carefully at the situation:
1 - Is Google aware of the new server? if no then fine
2 - If yes, than you might have some trouble. Do you need Google to be aware of this site? why is Google knowing it?
3 - I presume that both on old and new site your links are something like
www.mydomain.com, which currently points to the old site and will later point to the new one. This is OK.
4 - when you will switch, you will in fact in the DNS administration change the IP address that responds to
www.mydomain.com frrom the old host to the new host.
There will be a blurred period of 48-72h where DNS all over the world will be in a changing state:
- some will point to the new IP, and for them the new site will be accessed directly thru
www.mydomain.com - the others will point to the old IP, and for them the right address to access the site content would be
www.newhost.com/mydomain/... so you will need to place on your old server an htaccess redirection with code 302: this would say "this request for
www.mydomain.com should temporarily be redirected to
www.newhost.com/mydomain/"
- after some days (I would wait one week), all the dns will be updated and nobody will go to the old site: you can now delete it
IMPORTANT: it MUST be a redirect 302, and not a 301 which would say to spiders "take note of the new address" and would thus lose some referencement. The 302 says "go there but do not record the change, as it is just temporrary"
2010/3/15 vkennedy
<vk@je.com> We are in the process of moving to a new web hosting server. In the
meantime, we have uploaded our files and are making some adjustments
etc. We have not gone live yet on the new server. We still have our
site live on the other server. However, we ran a report for external
links and have found that the new server is showing up as having
external links back to our current server (with what would normally be
looked at as internal links). I hope this makes sense. Anyway, I'm
wondering if that will harm our rankings in google in regards to these
"external" links and also in regards to Google possibly looking at
this new server as containing duplicate content to our current server?
Thanks.
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