The factors that affect a search ad's auction-time ad quality include:
a. Ad rank affects auction-time.
b. Ad landing page experience affects auction-time.
d. Ad quality and expected clickthrough rate affect auction-time.
e. Ad relevance affects auction-time ad quality.
Ad Rank is a key factor in determining the position of your ad on the search engine results page (SERP). It is calculated based on your bid amount, ad quality (including expected clickthrough rate, ad relevance, and landing page experience), and ad extensions.
The higher your ad rank, the better your chances of appearing in a higher position in the search results. Go ogle considers the landing page experience when determining the quality of your ad.