AdRank and Quality Score
AdRank is a value used to determine the placement of your ads or whether ads will show at all.
Google defines this process as… “Ad Rank is calculated using your bid amount, your auction-time ad quality (including expected clickthrough rate, ad relevance, and landing page experience), the Ad Rank thresholds, the competitiveness of an auction, the context of the person’s search (for example, the person’s location, device, time of the search, the nature of the search terms, the other ads and search results that show on the page, and other user signals and attributes), and the expected impact of extensions and other ad formats.”
Quality Score is a diagnostic tool that shows you how well your ad quality compares to other advertisers.
This score is measured on a scale from 1-10 and is available at the keyword level. A high-quality Score means your ad and landing page are more relevant and valuable to someone searching for your keyword than other advertisers. It is measured by how many people click on your ad when it’s displayed. That is called your click-through rate (CTR).
Use the Quality Score to identify where improving your ads, landing pages, or keyword selection might be beneficial.