New Platform; is a 301 appropriate

Should we 301 pages from the supplemental index?

[foolsgold]

We are moving a site to a new platform, mainly for operational reasons, but we want to take care of supplemental/duplicate issues at the same time.

Would it make sense to 301 redirect pages from the existing site that are currently in the Supplemental index to the new site and their new URL?

[tedster]

If this platform change involves changing all your urls except for the domain root and directory indexes, I'd say you owe it to your visitors to place those redirects -- and yes they should also help Google index the new urls more quickly.

[foolsgold]

Thanks tedster, will do and see what comes out in the wash!

[jdMorgan]

Depending on the platform change, now may be the time to adopt platform-independent URLs, so that there will never again be any need to change all your URLs.

In other words, if you're changing from, for example, .asp to .php, then instead of using "/page.php" as the new URL for the old "/page.asp", use just "/page" and let the server map that to "/page.php" internally.

Ref: [w3.org...]

Jim