You can edit a rule to include specific paths in the content index, to exclude specific paths from the index, to specify how SharePoint lists are handled, or to provide a specific account to access a specific path. For more information about rules that include or exclude content, see About Rules That Include or Exclude Content.
Note You cannot change the path for an existing rule. If you want to change the path, you must delete the rule and create a new rule.
If you select this option, when the search component encounters a resource within this space, it will neither crawl the resource nor follow links contained within the resource.
If you select this option, you can also do the following:
By default, SharePoint lists are crawled as one item. Alerts for the list will be sent if any item in the list is changed if you do not click Allow alerts on individual SharePoint list items.
Your password is protected and can be used only to access the needed resources for the purpose of crawling content.
Note If you clear the check box to enable Basic authentication to be used, you must re-enter the password for the account.
For more information about using client certificates, see Using Client Certificates When Crawling Content.