A strong negative keyword list is one of the simplest ways to reduce wasted spend, improve search query filtering, and keep PPC campaigns aligned with buying intent. This guide gives you practical starter sets of negative keywords by industry, explains how to organize them at the campaign and ad group level, and outlines a maintenance cycle you can return to every month as search behavior changes.
Overview
Negative keywords tell platforms such as Google Ads and Microsoft Ads when not to show your ad. That sounds basic, but in day-to-day ppc campaign management, exclusions do more than block irrelevant clicks. They help shape traffic quality, support google ads optimization, and make your reporting cleaner by separating qualified demand from obvious mismatches.
At a practical level, a negative keyword list is most useful when it is treated as a living system rather than a one-time setup task. Search intent shifts. Campaign structures change. New products launch. Platforms broaden matching behavior over time. That is why a starter list should be broad enough to catch common waste, but flexible enough to expand based on search term report analysis.
A good working model is to organize negatives into three layers:
- Account-wide or shared negatives: terms you rarely want anywhere, such as “free,” “torrent,” “jobs,” or unrelated marketplace names where intent is clearly navigational.
- Campaign-level negatives: terms that do not fit a campaign theme, geography, offer type, or funnel stage.
- Ad-group-level negatives: terms used to separate closely related themes and improve ppc keyword management.
Google Ads supports negative keyword lists that can be created once and applied across campaigns, which is useful for standard exclusions and easier governance. The safest evergreen approach is to use shared lists for universal filters, then add campaign and ad-group negatives for intent control and keyword clustering for PPC.
Before the industry starters, keep one rule in mind: a negative keyword is only useful when it blocks traffic you genuinely do not want. Overblocking can reduce volume, distort learning for smart bidding strategy, and accidentally remove high-intent searches that happen to include an ambiguous term.
Universal starter negatives for many advertisers
These are not right for every account, but they are common starting points for google ads negative keywords work:
- free
- cheap
- torrent
- pirated
- crack
- download
- youtube
- amazon
- ebay
- craigslist
- jobs
- job
- career
- careers
- salary
- internship
- training
- course
- definition
- meaning
- template
- sample
- diy
- how to
These terms often signal job-seeking, research-only, educational, or off-platform intent. Still, context matters. A training company should not negate “course.” A discount retailer may not want to negate “cheap.” This is why starter sets work best as review prompts, not blind imports.
Negative keywords by industry: starter sets you can expand
The lists below are meant to accelerate setup and monthly review. Add them carefully, and always check search terms before applying a large batch.
SaaS and software
- crack
- torrent
- serial
- license key
- nulled
- github
- open source
- free download
- apk
- mod
- tutorial
- course
- salary
- jobs
Use caution with “open source” or “github” if your product integrates with developer workflows.
Local services
- jobs
- salary
- training
- certification
- diy
- how to
- wholesale
- supplies
- parts
- manual
- used
This set is useful for plumbers, roofers, chauffeurs, HVAC companies, and similar businesses where service intent differs from employment, education, and self-service intent.
Ecommerce and retail
- free
- freebie
- coupon code
- promo code
- diy
- instructions
- manual
- repair
- replacement parts
- used
- second hand
- craigslist
- ebay
- amazon
Be careful with coupon-related negatives if promotions are part of your conversion path.
B2B services
- jobs
- salary
- internship
- course
- certificate
- template
- sample resume
- definition
- what is
- free consultation template
B2B advertisers often need to separate educational research from commercial investigation. Some top-of-funnel campaigns may intentionally keep “what is” queries, but lead-gen campaigns usually exclude them.
Education and training providers
- jobs
- salary
- torrent
- free pdf
- answers
- cheat sheet
- pirated
- crack
Here the usual “course” or “training” negatives do not apply. Instead, exclude low-value or infringing search intent.
Healthcare and clinics
- jobs
- salary
- school
- degree
- certification
- free clinic
- home remedy
- diy
- symptoms only
Medical campaigns need especially careful review. Do not assume informational queries are useless if your strategy includes patient education.
Real estate
- jobs
- salary
- course
- exam prep
- license
- zillow
- redfin
- craigslist
- rent calculator
- template lease
For agents and brokerages, searchers looking for licensing or marketplace destinations often have very different intent from buyers and sellers looking for representation.
Maintenance cycle
The best negative keyword list is one you maintain on purpose. This section gives you a repeatable workflow you can use for paid search optimization without turning account upkeep into a weekly fire drill.
Weekly: light search term review
Check recent search queries for obvious waste. Focus on:
- queries with spend and no conversions
- queries with poor engagement signals
- job-seeking or research-only language
- product mismatches, such as wrong brand, wrong category, or wrong geography
If an irrelevant query pattern appears more than once, add it to the appropriate level: ad group, campaign, or shared list.
Monthly: list cleanup and structure review
Once a month, do a fuller pass. This aligns well with a standard Google Ads audit checklist. Review:
- whether campaign-level negatives are blocking legitimate expansion
- whether ad-group negatives still support your current keyword structure
- whether your shared list has become too broad
- whether new campaigns inherited the right exclusions
This is also the right time to compare negative keyword themes against landing pages, ad copy, and conversion paths. If a landing page has changed, your old intent filters may no longer fit.
Quarterly: strategic refresh
Every quarter, revisit the list with a broader lens:
- Has your product or service expanded?
- Have you introduced lower-funnel or upper-funnel campaigns?
- Have match types or query patterns shifted?
- Are you feeding better conversion data into bidding?
This matters because exclusions and bid optimization influence each other. If your query filtering improves, automated bidding receives cleaner signals. If you over-filter, bidding can lose useful data and volume.
How to name and store lists
Simple naming conventions make maintenance easier:
- Shared - Universal Waste
- Shared - Jobs and Careers
- Campaign - Brand Protection Negatives
- Ad Group - Product A Exclusions
If your team uses external tracking, reporting, or a ppc reporting dashboard, log major list changes in the same place you track bid, budget, and ad test changes. That creates context when performance moves unexpectedly.
For teams looking to scale the review process, Operationalizing AI for Keyword Management: Lessons from Agency Practice offers a useful framework for systematizing keyword decisions without removing human review.
Signals that require updates
Scheduled reviews are useful, but some moments call for immediate attention. The following signals usually mean your negative keyword list needs work.
1. Search terms are drifting away from your offer
If search term report analysis shows more informational, employment, or unrelated brand queries, your exclusions may be outdated. This often happens after broad match expansion, campaign consolidation, or a shift in platform matching behavior.
2. Spend rises faster than qualified conversions
When spend climbs but lead quality or sales quality drops, the issue is not always bids or budgets. Query quality may have deteriorated first. Negative keyword refinement can improve traffic quality before you change ppc budget pacing or bidding logic.
3. New products, services, or geographies launch
Expansion creates ambiguity. A term that was once irrelevant may now be acceptable, and the reverse can also be true. Update lists when campaign intent changes.
4. Landing pages or offers change
If you launch a free trial, “free” may stop being a negative. If you remove an entry-level service, low-budget modifiers may become less useful. Always align search query filtering with the actual offer.
5. Search intent shifts seasonally
Some exclusions are stable year-round, while others change by season. Retailers may see more deal-seeking traffic during holiday periods. Education advertisers may see spikes in course, exam, and certification searches. Local services may see emergency or weather-related query changes.
6. Reporting visibility changes
If campaign reporting becomes less transparent, be more deliberate with exclusions and query review. That broader point is explored in Visibility Gaps: What Marketers Lose When Platforms Bundle Decisions — and How to Compensate.
Common issues
Negative keyword lists are simple in theory, but a few common mistakes can quietly limit growth.
Overblocking valuable queries
This is the biggest risk. A broad negative like “cheap” can block users looking for affordability who are still ready to buy. A negative like “template” can block legitimate software searches if templates are part of your product. Review actual queries before adding broad exclusions.
Using only one list for everything
Shared lists are efficient, but not every exclusion belongs everywhere. Account-wide lists should stay narrow and durable. More specific negatives belong at the campaign or ad-group level where intent differs.
Ignoring close variants and phrase context
Negative management is not only about single words. Phrases can matter more than isolated terms. “Jobs” may be a safe negative for most lead-gen campaigns, but “free consultation” is much more context dependent than “free.”
Letting old negatives accumulate
Teams often keep adding exclusions but rarely remove them. Over time, that can create hidden conflicts with current campaigns. Every quarterly review should include a removal pass, not just additions.
Separating negatives from broader account work
Negative keywords should not live in isolation. They connect to ad copy, landing page optimization for Google Ads, bidding, and measurement. If searchers keep looking for something you do not offer, there may also be a messaging problem. If you do offer it, your keywords, ads, or landing pages may not be clear enough.
That is one reason to pair negative keyword reviews with account health reviews and platform workflows. If your process is still manual and fragmented, Best Google Ads Management Tools for Small Teams can help you tighten recurring maintenance.
When to revisit
If you want this topic to stay useful over time, revisit your negative keyword list on a schedule and after specific triggers. Use this simple rule:
- Weekly: scan search terms for obvious waste
- Monthly: review shared, campaign, and ad-group negatives together
- Quarterly: refresh starter sets by industry and remove outdated exclusions
- Immediately: update when search intent shifts, campaigns launch, or traffic quality drops
To make that practical, use the checklist below during your next review.
A practical refresh checklist
- Export recent search terms by campaign.
- Highlight queries with spend but no meaningful business outcome.
- Group them into themes: jobs, research, free-only intent, DIY intent, unrelated brands, wrong geographies, low-fit products.
- Add recurring themes to the right level: shared, campaign, or ad group.
- Check for negatives that may now block valid traffic.
- Review ad copy and landing pages to confirm the exclusion is solving the right problem.
- Document what changed so future performance analysis has context.
The goal is not to build the longest possible negative keyword list. The goal is to maintain a current, intentional list that reflects your offer, your audience, and the way people actually search right now.
Done well, negative keywords by industry become less of a static spreadsheet and more of a recurring operating habit. That habit supports cleaner traffic, better google ads keyword strategy, and more disciplined search query filtering over time.
