What supply-path analysis tells us about inventory quality

Supply-path analysis can show buyers how inventory reaches them, but it does not by itself determine whether a path represents quality supply. Which characteristics matter? What should intermediaries be expected to demonstrate? And where should buyers draw the line?

Ogury has been applying this question to its own supply through a publisher vetting process that looks beyond the publisher name to inventory characteristics and path. To structure this work, Ogury used Jounce Media’s Supply Path Benchmarking methodology to assess supply and apply an external taxonomy to different path types.

We caught up with Fabio Zoboli, SVP Global Publisher Partnership at Ogury, to explore how this approach offers a practical framework for evaluating supply partners for advertisers and how it provides a clearer view of expected quality standards for publishers and intermediaries.

What does “quality supply” actually mean?

At one end of the spectrum, Bellwether sellers operate fully transparent and maximally direct access to high quality ad products across web, mobile app, and CTV environments. Premium sellers provide direct access to additional sources of supply that meet high quality standards but are not manually monitored by Jounce. In Jounce Media’s analysis of Ogury’s supply, nearly 90% was classified as Bellwether or Premium Direct Paths, compared with 75% across the market.

This distinction matters because transparent supply paths give buyers greater control over their media decisions and a clearer understanding of why each intermediary exists. The question is not just whether supply is high-quality, but whether buyers retain the autonomy to understand and govern how inventory reaches them.

Other categories require more scrutiny. Rebroadcasting refers to resold supply where additional intermediaries can extract value without necessarily adding commensurate benefit. Cheap Reach describes technically valid inventory associated with low-attention placements. High Risk supply includes documented compliance issues, while Made for Advertising (MFA) inventory is associated with arbitrage, excessive ad load, and limited audience value.

This does not mean that every intermediary or non-direct path is inherently problematic. The more useful question is whether the path can demonstrate legitimate reason for each participant and whether inventory meets required quality standards.

What should advertisers ask their supply partners?

A supply-quality assessment does not need to begin with exhaustive technical checklists. A few key questions can help understand how seriously a partner approaches inventory quality.

How direct is the supply path?

Directness matters, but a longer path is not automatically lower quality, just as a direct integration does not guarantee quality. What matters is that every intermediary has a clear role and adds value; if they cannot justify their place in the chain, they should not be there.

What value does each intermediary add?

An intermediary can play a legitimate role through exclusive access or services that materially contribute to the transaction. A useful question for buyers is: what would be lost if this intermediary were removed from the path?

How are lower-quality paths identified?

A framework needs explicit rules for inventory that does not meet required standards. At Ogury, MFA and High Risk supply are excluded by default, while Rebroadcasting and Cheap Reach can be considered when additional criteria are met, including exclusive placements or Google Certified Partner status. This taxonomy creates categories that can trigger different review levels.

What evidence sits behind the quality assessment?

A publisher’s own description is only part of the picture. Ogury’s vetting framework also considers organic audience presence, screenshot verification, supply path compliance, exclusivity, and whether the supply chain is correctly represented.

For advertisers, the broader lesson is to ask not only who is in a partner’s supply, but how that partner determines which supply is allowed through.

What does a serious vetting process mean for publishers?

Being direct can help, but it is not a sufficient definition of quality. A publisher working through an intermediary can still qualify when the relationship provides legitimate value and the path remains transparent.

Publishers should be prepared to explain how inventory reaches buyers, who is involved, and what each intermediary contributes. Exclusivity and reseller credentials can also be relevant.

For publishers, this shifts the conversation away from simply asking whether an integration has been approved to whether they can demonstrate the quality and transparency of the route through which their inventory reaches buyers.

Supply paths change after initial review, as publishers can alter monetization, introduce intermediaries, or shift distribution. That is why Ogury applies its framework continuously: MFA and High Risk supply are automatically blocked, while Rebroadcasting and Cheap Reach can be included when relevant criteria are met, subject to ongoing monitoring and monthly audits. Ogury is also working on additional automated verification checkpoints and crawler improvements as part of broader supply-path optimization.

 A quality assessment is only useful if it can identify when underlying supply changes.

What supply-path analysis can and cannot tell you

Supply-path analysis is not a single score for inventory quality. It provides a way to examine how inventory reaches the market and identify characteristics that warrant different levels of scrutiny.

Directness is one factor, alongside the role of intermediaries, the nature of inventory, and controls applied to higher-risk supply. External frameworks such as Jounce Media’s can provide a common taxonomy for evaluating those factors, while individual buyers and supply partners need to define standards they are prepared to accept.

For advertisers, that means looking beyond publisher lists and asking how supply quality is assessed and maintained. For publishers and intermediaries, quality is no longer defined by integration status or path length alone. It is demonstrated through the ability to explain why each participant exists and what value they contribute. Resellers with exclusive access or specialized services can qualify; resellers that simply extract value cannot.

Ultimately, supply path analysis is useful not only because it makes paths visible, but because it makes paths accountable. When buyers and sellers share a framework for evaluating which intermediaries add value, both sides can make decisions based on evidence rather than trust alone.