What does it do?
This Enhanced Script automatically calculates the Lin Rodnitzky (L/R) ratio for your Google Ads account. This ratio is a quick calculation to see the efficiency of a Google Ads account, and it is calculated by dividing the cost per acquisition or conversion (CPA) of all search queries with the CPA of search queries that have more than one conversion.
Why Use It?
With the script, you can:
Get a quick, reliable snapshot of your account’s efficiency without deep analysis
Identify whether your strategy is too conservative or overly aggressive in seconds
Uncover wasted spend by spotting inefficient query-level performance early
Make faster, data-backed optimization decisions with a single metric
Track performance trends over time using consistent, comparable benchmarks
Save time by automating the ratio calculation and delivering results directly to your inbox.
How does it work?
Choose the account you want to run the script in and go to the All Enhanced Scripts page. The script lets you set basic and advanced settings.
You can either create a new setting selecting 'Create new setting' or 'Copy setting from an existing account'. To create a new setting, follow the steps below:
Setting Name
Enter the name you want to give the setting. You can have multiple settings for the same script based on date range.
Range
Choose the date range for which you want to calculate the L/R ratio for the script.
Email Addresses To Notify
Enter the email addresses you would like to notify after the script finishes running. These email addresses will get an email with the L/R ratio after it finishes running.
Use Cases
Prioritize Optimization Efforts Across Accounts
Problem: You manage multiple accounts and struggle to identify which ones need immediate attention.
Solution: Run the script across accounts and use the L/R ratio as a benchmark to quickly identify inefficient or high-risk accounts.
Evaluate Account Efficiency Over Time
Problem: You find it difficult to measure whether recent optimizations have improved overall account efficiency.
Solution: Create multiple settings with different date ranges to calculate and compare L/R ratios over time. This allows you to track performance trends and validate optimization efforts.
Detect Overly Aggressive Bidding Strategies
Problem: You are scaling campaigns aggressively but are unsure if rising costs are justified by meaningful conversions.
Solution: The script highlights when your L/R ratio exceeds 2, indicating inefficiencies caused by overly aggressive targeting or bidding. You can use this insight to refine bids and tighten targeting.