No, you won't be penalized by search engines. Actually you will most
likely boost your page rank. Using pretty permalinks is a very common
technique.
To avoid duplicate links and reduce the risk of getting penalized, you
must use only pretty URL links in your website. Do not use both types
of links for the same webpage. That is, for your example page, use
only the new URL, not both.
Also, if you finally decide to want to use a URL rewrite tool for IIS,
I strongly recommend IIS Mod-Rewrite (
http://www.micronovae.com/ModRewrite/ModRewrite.html
). It's a much more solid solution, and it is compatible with apache
mod_rewrite. It has a lot of other fancy features and you might need
to take a look.
On May 21, 4:44 pm, acer152 <aaronlore...@gmail.com> wrote:
> I've begun using ISAPI_Rewite (IR), to make my URL's more search
> engine friendly. I'm wondering though if my new URL's will be
> considered "duplicate URL's", in that the new URL will point to old
> URL.
>
> For example:
>
> Old URL - This page is the old type of URL:http://www.mydomain.com/library/content.asp?cntid=25
>
> New URL - for IR translation:http://www.mydomain.com/library/25/how-to-sell-antiques
>
> IR would extract the 25 from the URL, and p*** into /library/
> content.asp?cntid=$1.
>
> So, the Old URL still exists, and can be accessed via Old URL
> directly, but the new URL also works.
>
> Is this considered "duplicate links" being they go to the same
> content? I don't see any other way to start using IR, but I don't
> want to be penalized by search engines.