A Google Ads placement exclusion list is a collection of specific websites, mobile apps, or YouTube channels where you choose to prevent your advertisements from appearing. By utilizing this tool, advertisers can proactively filter out inventory that does not align with their business goals or brand safety standards. This process directly prevents wasted ad spend on low-quality traffic and helps ensure your message reaches relevant users in environments that support your overall marketing objectives.
Why should you use placement exclusions?
Display and Video campaigns often rely on automated targeting. While Google algorithms work to find your ideal audience, they sometimes place ads on sites that provide poor user experiences or content that conflicts with your brand values. By implementing an exclusion list, you gain control over the context of your ads. This is a common pattern in accounts where performance metrics show high click-through rates but zero conversions, suggesting that the placement quality is to blame for the lack of ROI.

Beyond brand safety, managing your placements is a direct method of budget optimization. When you remove poor-performing mobile game apps or click-bait news websites, you effectively reallocate your funds toward high-converting placements. This manual oversight acts as a filter, allowing your budget to flow toward inventory where your target audience is actually likely to interact with your offer. In a typical account, this can lead to more stable acquisition costs over time.
How do you identify which sites to exclude?
The starting point for any exclusion list is the ‘Placements’ tab within your Google Ads account. Navigate to the ‘Where ads showed’ section to see a list of domains, YouTube channels, and apps where your ads have recently appeared. You should evaluate these sites based on conversion data and engagement metrics. If a specific site has generated hundreds of impressions and clicks but no sales, it is a primary candidate for your exclusion list.
When reviewing your placement reports, look for categories of sites that rarely convert. For instance, many advertisers find that mobile game apps often drive accidental clicks from children or users who are distracted. If your business sells professional B2B services, these placements are likely irrelevant. Categorizing your exclusions into groups, such as ‘Mobile Apps,’ ‘Gaming Sites,’ or ‘Content Farms,’ makes it easier to apply these lists across multiple campaigns.

How to set up placement exclusion lists in Google Ads
- Go to the ‘Tools and Settings’ menu and select ‘Placement exclusion lists’ under the ‘Shared library’ section.
- Click the plus button to create a new list and provide a descriptive name for it.
- Add the URLs of websites or IDs of YouTube channels you wish to exclude.
- Save your list and apply it to the desired campaigns or ad groups.
- Review your exclusion lists monthly to add new domains that do not meet your quality standards.
Comparison of exclusion management methods
| Method | Scope | Level of Control |
|---|---|---|
| Campaign-level | Individual campaign | High |
| Account-level | Entire account | Total |
| Placement list | Multiple campaigns | Scalable |
Can you use automation to manage these lists?
While manual reviews are effective, they can be time-consuming. You can use scripts to automatically exclude placements that fall below a certain conversion rate threshold. For example, a script can pull a report of all placements with over 500 impressions and zero conversions, then automatically add those to your exclusion list. This maintains a lean ad account without requiring daily manual intervention from your team.
How Alien Road applies placement exclusion
At Alien Road, we follow a structured approach to placement management for our clients. During the initial setup, we implement a master exclusion list that covers common low-quality inventory, such as known click-farm domains and irrelevant mobile app categories. This provides a clean baseline from day one. We then perform a check of campaign performance every two weeks to identify new, specific domains that are draining the budget without providing value.
We also prioritize client feedback in this process. If a client notices their ads appearing on a site that does not align with their specific industry reputation, we add that domain to the master list immediately. By combining automated script alerts with manual review, we ensure that our client ad spend is protected and directed toward high-intent traffic sources that support long-term growth and lead generation goals.
What are the common mistakes when excluding placements?
- Excluding too broadly, which might limit your campaign reach and prevent finding new audiences.
- Failing to update exclusion lists, allowing new, poor-quality sites to spend your budget.
- Adding sites to an exclusion list without checking if they are actually driving conversions.
- Ignoring the difference between domain-level exclusions and full channel exclusions.
Is it better to exclude by category or individual site?
The best approach usually involves a mix of both. Category exclusions, which you can find in the content settings of your campaign, allow you to block broad groups like ‘parked domains’ or ‘sensitive content.’ This is a quick win for basic brand safety. Individual site exclusions are better for dealing with specific domains that you identify as underperforming during your routine audit of the ‘Where ads showed’ report.
For example, if you run a campaign for a luxury brand, you might exclude the ‘Games’ category entirely to avoid showing ads within mobile gaming apps. However, you might still find that a specific news blog is showing your ads but providing high bounce rates. In this case, you add that specific URL to your exclusion list. This layered strategy ensures your ads remain visible in quality spaces while blocking the specific noise that impacts your bottom line.
Frequently Asked Questions
How often should I update my exclusion list?
It is recommended to review your placement reports at least once every two weeks. This frequency allows you to gather enough data to determine if a site is truly underperforming or just having a temporary slow period. Consistent updates ensure your budget is protected.
Does excluding a placement hurt my campaign performance?
Excluding a placement only hurts performance if that site was actually driving conversions for you. By removing sites with no conversions, you are essentially cleaning up your traffic. This allows the Google algorithm to focus on sites that yield better results for your budget.
Can I use exclusion lists across all my campaigns?
Yes, you can create a single placement exclusion list in the Shared Library and apply it to multiple campaigns. This is highly efficient for maintaining consistency across your account, especially when you have a list of known low-quality sites you want to block globally.
Where do I start this week?
Start this week by logging into your Google Ads account and navigating to the ‘Where ads showed’ report. Sort your placements by cost and filter for those with zero conversions. Add these to a new exclusion list and apply it to your most active Display campaigns to see the immediate impact on your daily spend efficiency.
Keep reading: Google Advertising · Advertising