Negative keywords in Google Ads prevent your ads from appearing when users search for irrelevant terms, helping to reduce wasted spend. By excluding specific words or phrases that do not align with your business goals, you ensure your budget is spent only on high-intent traffic. This simple yet effective control mechanism acts as a filter for your campaigns, keeping your reach focused on users who are actually searching for the products or services you provide.
Why should you use negative keywords?
In a typical account, Google Ads matches your keywords to a wide variety of search queries. Without proper exclusions, you may find your ads appearing for terms that share a keyword but carry a different user intent. For example, a business selling high-end luxury furniture might find their ads showing up for ‘cheap DIY furniture’ or ‘used furniture repair.’ These clicks rarely result in a conversion and drain your daily budget quickly. By applying negative keywords, you prevent these irrelevant impressions from eating into your potential revenue.

Managing your spend involves regular monitoring of the search terms report. If you do not actively exclude irrelevant terms, you are essentially paying for the privilege of appearing to users who have no intention of purchasing your offerings. This practice is essential for maintaining a healthy cost-per-acquisition. Over time, these small savings accumulate, allowing you to reallocate your resources toward high-performing keywords that actually generate sales or leads for your business.
How do you identify which keywords to exclude?
The most reliable way to find negative keywords is to review the Search Terms report inside your Google Ads account. This report lists the exact words and phrases people used when your ad was triggered. Look for patterns where the search query contains a word that signifies a lack of commercial intent or a mismatch with your services. This process requires a consistent schedule, such as reviewing the data once every week to keep your campaign performance stable.
Common patterns for negative keywords
- Terms related to free items: ‘free’, ‘cost-free’, ‘complimentary’, ‘cheap’, ‘budget’.
- Informational or research intent: ‘how to’, ‘what is’, ‘definition’, ‘guide’, ‘blog’, ‘tutorial’.
- Career or employment searches: ‘jobs’, ‘hiring’, ‘salary’, ‘resume’, ‘internship’.
- Competitor names (if you do not wish to bid against them): ‘competitor brand name’, ‘competitor reviews’.
- Unrelated product categories: ‘used’, ‘second-hand’, ‘repair’, ‘parts’ (if you sell only new items).
What are the different types of negative keyword matching?
Understanding match types for negative keywords is just as important as understanding them for your active keywords. Negative broad match is the default setting. If you add ‘free’ as a negative broad match, your ad will not show if ‘free’ is in the search query, regardless of the other words in the query. This is a very broad exclusion and should be used with caution to avoid blocking valuable traffic.

Negative phrase match works by blocking ads if the search query contains the exact phrase, even if other words are present. For example, if you add ‘cheap furniture’ as a negative phrase match, your ad will be blocked for ‘cheap furniture store’ or ‘best cheap furniture.’ Negative exact match is the most restrictive; your ad will only be blocked if the user types that specific term and nothing else. Using these variations allows for precise control over your ad delivery.
How Alien Road applies negative keywords
At Alien Road, we follow a structured approach to campaign optimization for all our clients. We start by building a master negative keyword list during the initial setup phase, incorporating industry-wide irrelevant terms. For example, if we are managing a Shopify store selling high-end athletic footwear, we immediately exclude terms like ‘repair’, ‘used’, and ‘jobs’ to protect the initial budget. This proactive step provides a clean foundation before the campaign even goes live.
Once the campaign is running, we monitor the Search Terms report for every client account. We check for query clusters that show high impression counts but low conversion rates. If we identify a common theme in these searches, we update the negative keyword lists at the campaign or ad group level. This persistent refinement helps us maintain a high click-through rate, ensuring that our clients are reaching the right audience at the right time without wasting budget on irrelevant traffic.
How to add negative keywords in the dashboard
Adding negative keywords is a straightforward process within the Google Ads dashboard. Navigate to the ‘Keywords’ section in the left-hand menu, then click on ‘Negative keywords.’ From there, you can add them at the campaign or ad group level by clicking the blue plus button. You can enter your list of terms, separated by lines, and click save. This change takes effect almost immediately, shielding your campaign from unwanted search queries.
Steps to update your negative list
- Go to the ‘Keywords’ tab on the left navigation bar.
- Select ‘Negative keywords’ from the sub-menu.
- Click the plus sign to add new entries.
- Choose whether to apply the keywords to a specific campaign or ad group.
- Type your keywords, one per line, and review them for accuracy.
- Click ‘Save’ to confirm your changes.
Are there risks to using too many negative keywords?
Adding too many negative keywords can result in over-optimization, which might restrict your reach too significantly. It is possible to block potential customers by being overly aggressive with your exclusion lists. Always review the keywords you are adding to ensure they are truly irrelevant to your primary business objectives. If you are unsure about a term, consider using a broader match type or monitoring the search terms for a longer period before making a final decision to block it.
Maintaining a balance is the key to success in digital advertising. You want enough control to avoid waste, but not so much that you stifle the potential growth of your campaigns. When you add a negative keyword, consider how it might interact with your existing positive keywords. If you notice a sudden drop in impression volume after adding new negative keywords, it may be a sign that you have excluded a term that was actually providing valuable traffic to your site.
Where to start this week
Start your optimization this week by logging into your Google Ads account and pulling a search terms report for the last 30 days. Sort the list by cost to identify which queries are spending the most money without generating conversions. Review these expensive queries and pick at least five terms that are clearly irrelevant to your business. Add these to your negative keyword list, either at the campaign level or as a shared list if you want to apply them across multiple campaigns.
Once you have applied these exclusions, check your campaign metrics again in seven days. Look for a reduction in cost-per-click or an improvement in your conversion rate. This habit of weekly maintenance ensures that your account remains efficient and profitable. If you have multiple campaigns, consider creating a shared negative keyword list. This allows you to update one list and have those changes applied to every campaign attached to it, saving time and keeping your exclusion strategy consistent.
Continue this cycle of analysis and exclusion to keep your advertising performance high. Remember that the digital landscape changes, and new irrelevant search queries may appear as your campaigns run. By staying consistent with your review process, you protect your budget and ensure your brand is seen by the right audience. If you need further help with your strategy, remember that constant monitoring and small, data-driven adjustments are the standard for any successful marketing campaign.
Keep reading: Google Advertising · Advertising