What is Invalid Traffic?
Invalid Traffic (IVT) refers to digital ad impressions and clicks that don't come from real people engaging with content as intended. This includes traffic generated by bots, automated scripts, malicious software, or deliberate human manipulation designed to artificially inflate ad metrics.
The Interactive Advertising Bureau (IAB) categorises IVT into two types:
- General Invalid Traffic (GIVT): Easily detectable traffic from obvious sources like automated crawlers, non-human user agents, and data centre traffic.
- Sophisticated Invalid Traffic (SIVT): Harder to detect manipulation including click farms, incentivised clicking, and malware-driven interactions.
Why IVT Matters for UK Agencies
Invalid traffic directly impacts campaign performance data and ROI calculations. When you're measuring CPM, CPC, or conversion rates, IVT skews these metrics, making campaigns appear more effective than they actually are. This leads to poor budget allocation decisions and inflated reporting to clients.
In the UK, where advertisers are increasingly scrutinised over marketing spend efficiency, IVT creates compliance risks. The Advertising Standards Authority (ASA) and industry bodies expect agencies to demonstrate transparency in reporting. High IVT rates can damage client relationships and agency reputation.
How It Impacts Media Buying
When Connect Media Group or any UK agency places ads through programmatic platforms or publisher networks, a percentage of impressions may be invalid. Publishers with poor quality controls, niche inventory sources, and certain geographic regions tend to have higher IVT rates.
This is why viewability standards and fraud detection have become standard requirements in media buying contracts. Agencies now typically use third-party verification tools like IAS, Integral Ad Science, or DoubleVerify to filter and measure IVT across placements.
Industry Standards
The IAB UK has published guidelines on IVT measurement and reporting. Most premium publishers guarantee traffic quality and offer refunds or make-goods if IVT thresholds are exceeded. Industry benchmarks vary, but acceptable IVT rates typically sit between 5-10% across digital channels, though premium placements should perform better.
Practical Applications
When negotiating with publishers or platforms, agencies should:
- Request IVT reporting as standard
- Set acceptable thresholds in contracts
- Use verification partners to audit buys
- Monitor traffic quality throughout campaigns
- Adjust spend away from underperforming sources
Understanding IVT is essential for ethical media buying and delivering genuine value to clients.