Shopping optimization score
An optimization score is an estimate of how well your Google Ads account is set to perform, and is used to measure the potential for account optimization based on actions you can take that Google can automatically recommend.
In your Google Ads accounts, the default view for the “Recommendations” page is set to the gross optimization score. If you dismiss an opportunity for optimizing your account, this will be reflected in the gross score. If you hover over the gross optimization score, you’ll be able to see the net optimization score. CSS Insights uses the net optimization score to measure the amount of opportunity available for account optimization. The net optimization score doesn’t change if you dismiss a recommendation.
The Shopping optimization score assigns a percentage of 100 points to a group of recommendations based on the likelihood that the recommendations will improve account performance (for example, conversions, impressions, clicks, spend, etc.) over time. Algorithms are used to create recommendations for a campaign based on their estimated impact on performance. Points are assigned to each recommendation accordingly.
For example, an account with a Shopping optimization score of 80 shows recommendations worth 20 points for Smart Shopping campaigns. Dismissing this recommendation will increase the gross optimization score to 100. However, the net optimization score will remain at 80 as the recommendations were not implemented.
CSS groups
CSS domains
The CSS domains page lets you view a list of all the domains within a CSS group, including optimization score for each CSS domain. You can use this data to understand which domains have the maximum headroom for improvement and focus on domains that need attention. After this, you can move to the accounts view and focus on accounts with maximum opportunity for optimization.
The CSS domains page includes the following columns:
- Domain: Lists the name for each CSS domain affiliated with the CSS group.
- Net optimization score: The measure of how much optimization potential exists based on actions you can take that Google can automatically recommend.
- Net optimization score WoW: The week over week progression of the net optimization score for each domain.
The tool displays headroom opportunities based on the below sections.
- Keywords & targeting: Highlights opportunities that focus on increasing the reach and traffic with headroom in audience, search partners, targeting all shopping offers, etc.
- Bids & budgets: Focuses on bidding and budget opportunities that can enhance the performance of your Shopping ads campaigns.
- Repairs: Focuses on ensuring that all ad groups have ads, disapproved products are fixed, and a few other feed and merchant center account related opportunities.
- Automated campaigns: Highlights opportunities to automate your campaigns.
- Ads and extensions: Recommendations to help you refine your ads, improve clickthrough rates (CTR), and maximize the performance of your ads.
Accounts
The “Accounts” page shows you a list of all the Google Ads accounts that you have access to, along with their Shopping optimization scores and quantified opportunity for each section. You can navigate to the respective Google Ads accounts by clicking on the Google Ads account ID. Once you click into a specific account, you will see changes over a period of seven days (WoW). You can filter by spend, domains, Google Ads account name, and Google Ads account ID.
You can also deep-dive into one of five recommended areas: Keywords & targeting, Bidding & budgets, Repairs, Auto campaigns, and Ads & extensions. To filter by type, click on the name of the area you want to see. For example, select Bidding & budget to see all of the opportunities within this area.
By selecting the three-dot menu 
Apply filters by clicking on the filter icon and selecting one of the following options: Google Ads account name, CSS domain, Google Ads account ID.