🛡
Certified Against Fraud
Companies commit to filtering invalid traffic, using TAG-validated detection vendors, and following payment standards that discourage fraud. This is TAG’s flagship anti-fraud programme.
Fraud Type Guide
TAG (Trustworthy Accountability Group): Fighting Ad Fraud Industry-Wide
The Trustworthy Accountability Group sets the industry standard for fighting ad fraud. Learn how TAG certification works, what it covers, and why it matters for your campaigns.
What Is TAG?
Quick answer: TAG (Trustworthy Accountability Group) is the leading industry body fighting ad fraud, malware, and criminal activity in digital advertising. Founded by the ANA, 4As, and IAB, TAG provides certification programmes that hold companies accountable for maintaining clean, transparent supply chains.
TAG was established in 2015 in response to the growing threat of criminal activity in the digital advertising ecosystem. It operates through a series of certification programmes that set minimum standards for fraud prevention, brand safety, malware detection, and supply-chain transparency.
For advertisers, working with TAG-certified partners means reduced exposure to fraud. Studies consistently show that TAG-certified channels experience fraud rates up to 90% lower than non-certified channels. However, certification is a baseline, not a complete solution — sophisticated fraud still requires advanced real-time detection.
Understanding TAG’s role in the ecosystem helps advertisers build a layered defence: industry standards for supply-chain accountability, combined with real-time detection tools for campaign-level protection.
TAG Certification Programmes
TAG operates multiple certification tracks, each addressing a specific threat in the digital advertising supply chain.
🔒
Certified Against Malware
Requires implementing malware scanning across the ad supply chain, monitoring creative assets, and establishing rapid response protocols for malware incidents.
👤
Brand Safety Certified
Ensures companies maintain robust brand safety practices, including content classification, page-level verification, and tools to prevent ads from appearing alongside harmful content.
📜
Inventory Quality Guidelines
Standards for supply-chain transparency, including support for ads.txt, sellers.json, and supply-chain object implementations that help buyers verify inventory sources.
TAG Certification: Benefits and Limitations
TAG certification provides a strong foundation, but advertisers should understand both its strengths and its gaps.
✅
Reduced Fraud Exposure
TAG-certified channels consistently show fraud rates up to 90% lower than non-certified channels, making certification a valuable baseline for partner selection.
✅
Supply-Chain Transparency
Certified companies commit to transparency standards that make it easier to trace ad delivery and identify where fraud enters the supply chain.
🛑
Not Real-Time Detection
TAG certification verifies that companies follow anti-fraud processes, but it does not provide real-time detection of fraudulent traffic at the impression or click level.
🛑
Compliance ≠ Immunity
Certified partners can still receive fraudulent traffic from upstream sources. Certification reduces risk but does not guarantee that every impression is genuine.
Opticks integrates via a lightweight tag — install through Google Tag Manager in under five minutes with no code changes required.
How Opticks Complements TAG Standards
Real-Time Detection
While TAG sets industry standards, Opticks provides real-time fraud detection at the campaign level, analysing every visit against 30+ fraud signals as it happens.
Granular Source Visibility
See fraud rates by publisher, placement, and traffic source. This goes beyond certification compliance to show exactly where your budget is being wasted.
Actionable Intelligence
Use Opticks data to verify TAG-certified partners, identify uncertified sources that deliver genuine traffic, and make informed decisions about your media mix.
Frequently Asked Questions
Keep Exploring
Related Resources
Go Beyond Certification with Real-Time Detection
See how Opticks complements TAG standards with real-time fraud detection across all your campaigns. No code changes required — install via Google Tag Manager in under five minutes.
Start Free Trial
No credit card required