My employer’s SharePoint-powered external website – which I look after – uses ISAPI Rewrite to provide “friendly” URLs for certain pages, and also to redirect old URLs to their new locations. Coming from a LAMP background, this is great for me as it basically works the same as Apache’s mod_rewrite.
Previously the website responded to requests for both domain.com and www.domain.com, which is not ideal. SEO best practice is to either redirect the non-WWW version to the WWW version, or vice-versa. In my case, www.domain.com is the preferred format, so I’m using the following rule:
### Redirect domain.com to www.domain.com RewriteCond Host: ^domain\.com RewriteRule (.*) http\://www\.domain\.com$1 [I,RP]
If you want to do the opposite, you’ll need this one:
### Redirect www.domain.com to domain.com RewriteCond Host: ^www\.domain\.com RewriteRule (.*) http\://domain\.com$1 [I,RP]