Mastering effective ad copy is crucial for achieving success with Google Ads.
Yet, the PPC landscape can make it challenging to discern which optimization techniques truly yield results.
Although various perspectives exist on optimizing ads, few are substantiated by comprehensive data. A recent study from Optmyzr attempted to address this.
The goal isn’t to promote or dissuade any specific method but to provide a clearer understanding of how different creative decisions impact your campaigns.
Use the data to help you identify higher profit probability opportunities.
Methodology And Data Scope
The Optmyzr study analyzed data from over 22,000 Google Ads accounts that have been active for at least 90 days with a minimum monthly spend of $1,500.
Across more than a million ads, we assessed Responsive Search Ads (RSAs), Expanded Text Ads (ETAs), and Demand Gen campaigns. Due to API limitations, we could not retrieve asset-level data for Performance Max campaigns.
Additionally, all monetary figures were converted to USD to standardize comparisons.
Key Questions Explored
To provide actionable insights, we focused on addressing the following questions:
Is there a correlation between Ad Strength and performance?
How do pinning assets impact ad performance?
Do ads written in title case or sentence case perform better?
How does creative length affect ad performance?
Can ETA strategies effectively translate to RSAs and Demand Gen ads?
As we evaluated the results, it’s important to note that our data set represents advanced marketers.
This means there may be selection bias, and these insights might differ in a broader advertiser pool with varying levels of experience.
The Relationship Between Ad Strength And Performance
Google explicitly states that Ad Strength is a tool designed to guide ad optimization rather than act as a ranking factor.
Despite this, marketers often hold mixed opinions about its usefulness, as its role in ad performance appears inconsistent.
Image from author, September 2024
Our data corroborates this skepticism. Ads labeled with an “average” Ad Strength score outperformed those with “good” or “excellent” scores in key metrics like CPA, conversion rate, and ROAS.
This disparity is particularly evident in RSAs, where the ROAS tends to decrease sharply when moving from “average” to “good,” with only a marginal increase when advancing to “excellent.”
Screenshot from author, September 2024
Interestingly, Demand Gen ads also showed a stronger performance with an “average” Ad Strength, except for ROAS.
The metrics for conversion rates in Demand Gen and RSAs were notably similar, which is surprising since Demand Gen ads are typically designed for awareness, while RSAs focus on driving transactions.
Key Takeaways:
Ad Strength doesn’t reliably correlate with performance, so it shouldn’t be a primary metric for assessing your ads.
Most ads with “poor” or “average” Ad Strength labels perform well by standard advertising KPIs.
“Good” or “excellent” Ad Strength labels do not guarantee better performance.
How Does Pinning Affect Ad Performance?
Pinning refers to locking specific assets like headlines or descriptions in fixed positions within the ad. This technique became common with RSAs, but there’s ongoing debate about its efficacy.
Some advertisers advocate for pinning all assets to replicate the control offered by ETAs, while others prefer to let Google optimize placements automatically.
Image from author, September 2024
Our data suggests that pinning some, but not all, assets offers the most balanced results in terms of CPA, ROAS, and CPC. However, ads where all assets are pinned achieve the highest relevance in terms of CTR.