URL Channels are easy to implement and it don't change the AdSense ad code. So you can create your channels from within your publisher account and begin the tracking performance of ads on your individual pages.
URL Channels use for tracking individual page or to track group of pages base on the structure of site and categorizes or labels.
To track a single page: Enter the full path of the page
Example: abc.com/sample.html
To track a script that generates multiple pages: Enter the full path of the script without the "?" this will track abc.com/sample.asp?keyword=one
Example: abc.com/sample.asp
To track all pages below a specific directory: Enter a partial URL
Example: abc.com/sample
To track all pages on a domain: Enter the domain name . To track all impressions and clicks across the domain (including any existing subdomains)
Example: abc.com
To Create a URL Channel:
Step 1. Log in to your Google AdSense Account
Step 2. Click the Channels, there is a link AdSense Setup tab.
Step 3. Choose the AdSense for content sub-tab and click the URL Channels link
Step 4. Click Add new URL Channel and in the resulting text box, enter the URL that you would like to track.
Step 5. Click Add Channels.
The new URL Channel will begin tracking data almost immediately.
For more detail watch this video.
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