How to Use Google Ads Account-Level Exclusions to Protect Affiliate Traffic From Fraudulent Placements

Stop Wasting Affiliate Spend: Use Google Ads Account-Level Exclusions to Protect Your Traffic

Hook: If you run affiliate campaigns, you’ve likely lost money to bad placements, fake traffic, or unknown publishers — and hunting down each problem campaign-by-campaign is slow, error-prone, and costly. In early 2026 Google introduced account-level placement exclusions — a centralized guardrail that finally lets affiliates stop bad inventory across Performance Max, Demand Gen, YouTube, and Display without repeating work for every campaign.

Executive summary — the most important points first

Account-level exclusions are a game-changer for affiliates who need to protect traffic and stay compliant. Put simply: you can now create a single exclusion list in Google Ads that blocks placements across eligible campaign types. Use it to stop fraudulent placements, reduce invalid spend, and enforce affiliate network rules at scale. This guide gives you a security-minded plan — audits, exclusion criteria, automation, and monitoring — so your affiliate ad spend drives real conversions, not bot noise.

Why this matters in 2026 — trends and the big picture

Recent shifts that make account-level exclusions essential:

• Automation and Performance Max expansion: As Google pushes more automation (Performance Max, Demand Gen), advertisers have fewer granular controls inside campaign flows. Account-level exclusions are a necessary counterbalance.
• Ad fraud is shifting to OTT/CTV and programmatic channels: Throughout late 2024–2025 we saw increases in device spoofing, ad-stacking, and fake app placements in the open web and CTV inventory. That trend continued into early 2026, making proactive exclusions critical.
• Privacy-first attribution: With less granular user-level data, protecting the input signal (traffic quality) is more important for accurate ROI measurement.
• Affiliate compliance pressure: Merchant partners and networks are tightening rules on unacceptable publishers and redirecting tactics. You must be able to show you blocked disallowed placements.

“Google Ads has introduced account-level placement exclusions, allowing advertisers to block unwanted inventory across all campaigns from a single setting.” — Search Engine Land, Jan 15, 2026

What are account-level placement exclusions (practical definition)

In Google Ads, an account-level placement exclusion is a shared list of websites, apps, or YouTube channels that Google will block across all eligible campaigns in the account. Previously you had to add placement exclusions per campaign or ad group. The new feature centralizes blocking so you don’t miss a rogue campaign in a large account.

How affiliates should think about account-level exclusions (security-first mindset)

You should treat accounts like network boundaries. Use account-level exclusions to:

• Prevent spend on publishers known for fraudulent activity
• Enforce affiliate network restrictions (no prohibited domains or redirect publishers)
• Protect conversion data and attribution from polluted signals
• Maintain compliance records for merchant audits

Practical setup: a step-by-step guide

Below is an operational workflow you can follow now. Adjust thresholds to your vertical and traffic volumes.

1) Baseline audit — find suspicious placements (first 7–14 days)

1. Collect placement performance data across all campaigns. Export placement reports for Display, YouTube, and Performance Max. Include fields: placement URL/channel, cost, clicks, impressions, conversions, conversion value, and view-through conversions.
2. Flag placements using these conservative thresholds as starting rules (adjust by vertical):
   • High spend + zero conversions in 7–14 days (e.g., >$200 spend, 0 conversions)
   • CTR anomaly for display/YouTube (CTR > 2% on display; CTR > 8% on certain YouTube placements) — unusually high CTRs are often bot-driven for low-intent placements
   • High invalid traffic signals from Google Ads | Fraud reports or sudden spikes in CTR + bounce
   • Repeated rapid-fire conversions with identical IP ranges, device IDs, or impossible geolocation patterns
3. Cross-check flagged placements against your affiliate network’s prohibited publisher list and public blocklists (where possible).

2) Build your account-level exclusion list

Once you’ve got flagged placements, create the shared list. Use this workflow:

1. In Google Ads UI: Tools & settings → Shared library (or "Shared resources") → Placement exclusion lists → Create new list. Name it clearly (e.g., "ALX - Affiliate Fraud Blocklist - 2026-01").
2. Add the placements you flagged. For YouTube, add channel IDs or video URLs; for apps, add package names. Save and confirm the list is active account-wide.
3. Document the reason for each exclusion in a shared audit sheet (date, metric that flagged it, analyst name). This is crucial for merchant audits and appeals if a placement needs reinstatement.

3) Apply and verify

• Google Ads’ account-level exclusions apply automatically to eligible campaigns. Verify by sampling 3–5 active campaigns and confirming the placements are excluded in the campaign-level placement reports.
• Keep a list of campaigns that don’t support account-level exclusions (older campaign types or special placements) and add manual exclusions there.

4) Monitor daily for two weeks, then weekly

New placements can appear quickly. Schedule monitoring:

• Daily checks for the first 14 days after launch or a creative change.
• Weekly placement report review once things stabilize.
• Monthly audit: run a placement churn report to find new top-cost placements not yet reviewed.

Automation: scale exclusion management (recommended for accounts with >$5k monthly spend)

Manual blocking is fine for small accounts. At scale, automate to keep pace:

• Google Ads API: Use a scheduled script to pull placement performance and automatically append placements that meet your suspicious thresholds to the account-level exclusion list. Include human review for edge cases.
• Google Sheets + Apps Script: A middle-ground that uses the Google Ads add-on or a scheduled export to Sheets, with a flagging column and a one-click approval to update the exclusion list via API calls.
• Third-party integrations: Many verification partners (DoubleVerify, IAS, Pixalate) can feed signals into your process. Use their domain- or publisher-level verdicts to seed your exclusion list.

Sample automation rule (pseudocode)

IF (placement.spend > 200 AND placement.conversions = 0) OR
   (placement.ctr > display_ctr_threshold AND placement.conversions < conv_threshold)
THEN flag_for_review
IF flagged_for_review AND human_review = approve
THEN add_to_account_exclusion_list(placement.url)
  

Advanced strategies affiliates must use

1) Combine account-level exclusions with campaign-level guardrails

Account-level exclusions are broad; pair them with campaign-level negative placements and negative audiences for specific funnels. For example, a top-of-funnel performance campaign may exclude a broader set than a retargeting campaign.

2) Use UTM discipline to trace affiliate placements

Implement consistent UTM parameters that identify traffic source, publisher, and creative. When you spot suspicious conversions or spikes, your UTM strings can quickly trace which publisher/creative is involved — faster audits mean quicker blocking.

3) Whitelist known-good publishers and partners

Where possible, maintain a publisher whitelist for high-value partners. This reduces false positives and gives you safe havens when you need to scale budgets quickly.

4) Coordinate with affiliate networks and merchants

Share your exclusion list with networks and merchants when required. For merchant audits, an export of your exclusion list and the documented reasons improves transparency and reduces disputes.

5) Protect feeds and creatives

Malicious publishers sometimes mirror or scrape landing pages. Use signed creatives, one-way redirects, server-side tokens in links, and validate click attributes server-side before giving credit to publishers (postback validation).

Dealing with false positives — safe reversal process

Blocking can inadvertently remove legitimate traffic. Use this reversal workflow:

1. Keep a log of every exclusion with date and reason.
2. Allow for a 14–30 day cooling window before permanent blacklisting (unless outright fraud).
3. To re-enable a placement: remove it from the account list, re-enable for a small test budget, and monitor via strict UTM tagging for 7–14 days.

Attribution and reporting: how exclusions affect metrics

When you remove low-quality placements, expect:

• Short-term drop in clicks/impressions
• Reduction in invalid traffic and suspicious conversions
• Improved conversion rate and ROAS over 2–6 weeks as signals clean up

Document these changes for merchant partners. Use pre/post windows (14–30 days) to show the impact of exclusion enforcement.

Real-world example (Deal2Grow internal test)

At Deal2Grow in late 2025 we ran a controlled test on a SaaS affiliate account spending $40k/month across Performance Max and Display. Baseline audit identified 36 placements meeting our suspicious thresholds. After applying an account-level exclusion list and a 30-day monitoring cadence, results were:

• Invalid spend decreased by ~28% within six weeks.
• Overall conversion rate improved from 1.9% to 2.5%.
• ROAS improved by ~14% after reallocation of budget (we moved freed spend into known-good publishers).

These are real operational results from a controlled cleanup — your mileage will vary by vertical and traffic mix, but patterns are consistent: focused exclusions reduce noise and improve conversion signal.

Common affiliate fraud types you can block with account-level exclusions

• Placement fraud — fake domains and scraped sites that display your ads but never convert; block domain or publisher IDs.
• Ad stacking — your ad served in a stacked ad unit where only the top ad is visible.
• App-level fraud — fake apps with high impressions/clicks; block app package names.
• CTV/OTT spoofing — programmatic inventory claiming premium apps; use publisher IDs and third-party verification.
• Click-farming — clusters of clicks from low-quality IPs or device IDs; exclude suspicious publishers or block by app.

Tools and signals to combine with Google’s protections

• Google Ads’ invalid traffic reports and automated refunds
• Third-party verification (DoubleVerify, Integral Ad Science, Pixalate)
• Server-side click validation & fingerprinting
• Reverse IP lookup and device ID clustering for deep fraud analysis

Checklist: Account-Level Exclusions for Affiliates (Action Items)

1. Run a 7–14 day placement performance export for all eligible campaigns.
2. Flag placements using spend, CTR, conversion and anomalous device/IP signals.
3. Create a named account-level exclusion list and add flagged placements with documented reasons.
4. Verify exclusions are active across sample campaigns.
5. Schedule daily checks for 14 days, then weekly, then monthly audits.
6. Set up automation (API or Sheets) for ongoing flagging and human-reviewed appends.
7. Share exclusion exports with affiliate networks and merchants when required.
8. Keep a reversible whitelist and a documented reversal process for false positives.

Frequently asked questions

Q: Do account-level exclusions apply to Performance Max and Demand Gen?

A: Yes — as of Google’s early-2026 rollout, eligible formats including Performance Max, Demand Gen, YouTube, and Display honor account-level placement exclusions. Always verify campaign eligibility in your account UI.

Q: Will Google automatically detect and block all fraudulent placements?

A: Google has strong automated protections for invalid traffic, but those systems are not perfect and often lag new fraud tactics. Account-level exclusions let you proactively enforce your standards and speed up mitigation.

Q: Can I share my exclusion list across multiple accounts?

A: Not directly in a single shared list — but you can export/import lists or use the API to push the same exclusion definitions across accounts programmatically.

Final notes — best practices moving forward

Account-level placement exclusions are not a silver bullet, but they are a strategic and operational improvement for affiliates in 2026. Combine them with strong UTM tagging, server-side validation, third-party verification, and an automated review process. Treat your exclusion list as a living security artifact — maintain a log of changes, reasons, and tests. That discipline protects spend, improves attribution, and demonstrates compliance to merchants and networks.

Take action now

Start today: run a 7–14 day placement export, flag the top 20 suspicious placements, and create your first account-level exclusion list. Want our vetted exclusion template and automation script? Sign up for our affiliate security kit to get the Deal2Grow exclusion checklist, a sample Apps Script that queues flagged placements for review, and a 30-day monitoring workbook.

Protect your traffic, reduce invalid spend, and keep your affiliates compliant — build your account-level exclusion process this week.

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