Lots of overdynamic URL and crawl errors..

[filarinskis]

Just wanted some advice. SEOmoz crawl found out about 18,000 errors.

The error URLs are all mainly URLs like the one below, which seem to be the registration URL with a re-direct on, going back the product after registration:

http://www.DOMAIN.com/index.php?_g=co&_a=reg&redir=/index.php?_a=viewProd%26productId=3465

We have the following line in the robots file to stop the login page from being crawled:

Disallow: /index.php?act=login

If I add the following, will it stop the error?

Disallow: /index.php?act=reg

Thanks in advance**.**

[HiveDigitalInc]

You should look into using using Robots.txt to filter out specific querystring parameters

You can use asterisks (*) to match the URL type above...

Disallow: /index.php?a=reg