There are two key advantages to ad extensions, which are so common that almost any advertiser may benefit from them:  They enable you to submit additional information: Larger ad text allows you to convince targets why they should click on your ad.  They improve your visibility on SERPs: The increased size of longer adverts makes them more effective.  Ad extensions, by themselves, can considerably enhance your clickthrough rate (CTR) - perhaps by several percentage points. This is in addition to mentioning their other advantages, which include:  Improved ad ranking: Google determines your ad position based on a number of variables, including projected CTR, relevancy, and landing page experience. Simply installing ad extensions will enhance your ranking since it allows Google to provide a wider range of ad styles.  Better lead quality: By giving more details, extended ads enable low-quality leads to disqualify themselves, resulting in fewer unnecessary clicks. People that visit your landing page are far more likely to perform the intended action.  Better utilization of your PPC budget: Ad extensions can help cut your cost-per-click (CPC) since they enhance your CTR, which means you're receiving more out of your paid ad spend.