Starting in August 2019, you will no longer be able to edit destination URLs at the ad, keyword, and sitelink extension level. Please update URLs at these entities to final URLs. Learn more about Upgraded URLs.
The webpage URL people are taken to after they click your ad, which is different than the display URL that is the webpage address that appears in your ad.
It is the actual webpage people are taken to when they click your ad.
When creating your ad, we recommend using longer destination URL to send people to a more specific area of your website.
In the image above, Blue Yonder Airlines is advertising low fares to Europe this summer. The display URL (wwww.BlueYonderAirlines.com) lets people know where they are going when they click the ad and the destination URL can be www.BlueYonderAirlines.com/europesummersale.