Every time someone does a search that triggers your ad, Google calculate a Quality Score. To calculate this Quality Score, Google look at a number of different things related to your account. By improving the following factors you can help improve your Quality Score:
- Your keyword's expected clickthrough rate (CTR): The expected CTR is based in part on the keyword's past CTR, or how often that keyword led to clicks on your ad
- Your display URL's past CTR: How often you received clicks with your display URL
- Your account history: The overall CTR of all the ads and keywords in your account
- The quality of your landing page: How relevant, transparent, and easy-to-navigate your page is
- Your keyword/ad relevance: How relevant your keyword is to your ads
- Your keyword/search relevance: How relevant your keyword is to what a customer searches for
- Geographic performance: How successful your account has been in the regions you're targeting
- Your ad's performance on a site: How well your ad's been doing on this and similar sites (if you're targeting the Display Network)
- Your targeted devices: How well your ads have been performing on different types of devices, like desktops/laptops, mobile devices, and tablets – you get different Quality Scores for different types of devices
