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-- New To Web Development
---- How to redesign 450 page site and not lose ranking
jdMorgan - 2:04 pm on Aug 12, 2007 (gmt 0)
For pages which offer substantially the same content, keep the URLs unchanged -- at least for nine months to a year. Note that a URL is not a filename; You can use mod_rewrite on Apache or ISAPI Rewrite on IIS to map old URLs to new files (If you are on IIS, make sure that ISAPI rewrite is available on your server before committing to this approach).
Two main points:
Don't change everything all at once. Link to new pages from old, then let the new pages 'age' for awhile before taking down the old pages and 301-redirecting their URLs to appropriate replacement-page URLs -- again, the time scale is many months here.
It is tempting to introduce a redesigned site (of which you are proud) as an "opus" -- a new masterwork to be appreciated all at once as a whole. But that is something that search engines don't like at all.
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