If you add extensions to your ads (eg, a phone number or a link to your website), you can check their performance. Simply log into your AdWords account to see the number of clicks, number of impressions and conversions generated by your ads extensions. This data can help you optimize your ad extensions and to find out the optimal time to add or remove an extension of an existing ad.
View statistics of your ad extension
Use the tab Ad Extensions to see statistics for all ad extensions of your campaigns. You can also manage your ad extensions in this tab. This will automatically appear in your account if you have enabled ad extensions in at least one campaign.
Here’s how to find your “Ad Extensions” tab and view your stats:
Ad Extensions – Statistics available
The Ad Extensions:
Select the column details to determine the grounds for disapproval or limitation of your extensions in accordance with AdWords rules on advertising.
This column shows the number of clicks accrued in your ad when it was shown with a given extension type. This number combines clicks on the ad title and ad extension (if applicable). To see only clicks on the ad extension, click the drop-down segment and select click type.
Statistics on ad extensions are currently available for ads on the Google Search Network, the partner sites of Search (including Google Maps), and in some cases, on the Network Display Google.