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Retainin rakings on new platform

11:22 am on Feb 17, 2006 (gmt 0)

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I will shortly be moving an e-commerce website from an asp based system onto a php based system.

When I do this I would like to limit the impact on search engine rankings.

As a result I have so far come up with 2 options:

1. Do a permanenet redirect all asp pages to the new matching php version.

i.e: page.asp?id=12 -> newpage.php?id=123

However, this could be a real pain for product pages as their id in the new database could be quite different (as shown above) and would require lookups to the old catalog data to achieve this.

2. Start again. Remove all asp pages completely, resulting in 404s and hope the search engines spider the new site structure nice and quickly!

However, I have noticed in Google that a number of pages exist in their SERPS, even though they have long been deleted. So would adding a new page (with the same content) result in a duplicate content penalty?

7:56 am on Feb 18, 2006 (gmt 0)

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WebmasterWorld Senior Member caveman is a WebmasterWorld Top Contributor of All Time 10+ Year Member

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With the issues these days it's all a risk, but generally we prefer to do what should be able to be done, in this case 301 old to new. It still should work better, and generally it works OK more or less, depending upon the SE. To just lost 'em all and start over again is both lame, and now, runs some risk of dup issues, IMO.

I say, do what one is SUPPOSED to do, and hold the SE's feet to the fire if they mess up. Second guessing them, and as a result using poor executional strategies, just because they sometimes get it wrong, seems to us the worst of all possible choices.

8:27 am on Feb 24, 2006 (gmt 0)

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Yes, I think you are right.

However, on one site I am doing there are so many duplicate pages in Google that its going to be near impossible to try and catch them all with perm redirects.

What I thought of doing instead was to move the whole site onto a new URL (widgets.com -> widgets.co.uk) and then just do a perm redirect on the home page of the old domain to the home page of the new page so that the PR and backlinks are carried across.

Do you see any problems in me doing this?

One thing to point out is that widgets.co.uk currently has a perm redirect to widgets.com.


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