The digital advertising industry, a sector frequently championing transparency and advertiser trust, is facing scrutiny as a prominent watchdog organization, Check My Ads, has reportedly been denied direct access to a Demand-Side Platform (DSP) despite initial agreements. This development raises significant questions about the industry’s commitment to openness when deeper scrutiny of supply chains is involved, particularly when the entity seeking access is positioned as an independent auditor.
Check My Ads, a nonprofit organization dedicated to providing programmatic industry oversight, has built its reputation over several years by identifying and exposing inefficiencies and potential malpractices within the digital advertising ecosystem. Many ad tech vendors have publicly highlighted their collaborations with Check My Ads as evidence of their commitment to transparency and accountability. However, the organization’s recent attempt to gain a DSP seat—essentially an operational account that would allow it to analyze inventory and campaign performance firsthand, similar to any other buyer—was met with resistance from a DSP that Check My Ads has declined to name. This instance marks the first time Check My Ads has formally pursued such direct platform access.
A Promising Partnership Turns Sour
The situation began with apparent enthusiasm from the unnamed DSP. According to documentation reviewed by AdExchanger, including emails between the parties and a cosigned Master Service Agreement (MSA), the DSP was initially eager to onboard Check My Ads. In a significant gesture of goodwill, the DSP even waived its minimum spending requirements, a common hurdle for new clients. This leniency underscored the DSP’s initial perceived willingness to collaborate with the watchdog.
The objective for Check My Ads in seeking a DSP seat was multifaceted. Primarily, Arielle Garcia, COO of Check My Ads, stated the intention was to conduct in-depth research into programmatic buying. This research would inform the development of best practices aimed at helping small advertisers navigate the complexities of programmatic campaigns and mitigate wasteful spending. The organization’s recent report on Google’s Performance Max, for example, was based on its direct operational experience with the platform, demonstrating its methodology.
Beyond research, Check My Ads also harbored plans to offer "agency-lite" managed services to smaller advertisers on a nonprofit basis, thereby requiring the technical expertise and operational capacity of a DSP seat. Furthermore, the organization sought the seat for more pragmatic reasons: to facilitate its own marketing efforts, including promoting its services, newsletters, and branded merchandise.
Iesha White, Director of Intelligence at Check My Ads, who possesses a decade of experience as a media buyer, emphasized the necessity of practical engagement. "It’s important for Check My Ads to have technical expertise and stay current with how the industry is evolving," White stated. "In order for us to do that, we have to have skin in the game and spend money." White’s prior experience with the unnamed DSP led her to initiate contact earlier this year, seeking platform access.
The initial interactions were highly encouraging. Following a platform demonstration in April, a summary email from the DSP’s representative indicated agreement to waive the minimum spending requirement and acknowledged Check My Ads’ objectives. These objectives were clearly articulated as: moving beyond more automated solutions into "real" programmatic with "full transparency and control, no black box"; running test campaigns for research and potential revenue generation; and evolving into a "selective mini-agency model." The DSP expressed honor at being considered for this endeavor.
Shifting Sands: Concerns Over Supply Chain Protections
The trajectory of the engagement shifted dramatically in late May. While the DSP informed Check My Ads that its platform seat should be live by the following week, it simultaneously requested more detailed information regarding planned test campaigns, involved brands, expected budgets, and campaign objectives.
White responded on May 21, explaining that commitments with brand clients were still being finalized. She did, however, disclose plans for a brand lift campaign and a Cost Per Acquisition (CPA) campaign targeting newsletter sign-ups, with an initial test budget of $1,000—well within the range previously approved.
A follow-up inquiry from White on June 3 for a status update elicited a response indicating that "next steps" were still under confirmation. Crucially, this communication included a new question: "If you identify any vendor performance concerns on [redacted], can we agree to loop us in first before escalating externally?" This question immediately raised a red flag for Check My Ads, signaling a potential apprehension about the watchdog’s intentions and the implications of granting it access.
White responded by affirming that Check My Ads would indeed inform the DSP of any supply issues first and would reach out to impacted SSP vendors as per their standard practice. However, despite this reassurance, a subsequent follow-up from White on June 5 received a definitive rejection from the DSP’s head of client partnerships.
The official reason cited for terminating the partnership was a failure to achieve comfort with "the scope of protections extended to our vendor and supply partners." The DSP elaborated that it has an "obligation to consider the downstream impact on them before bringing on new clients, particularly in cases where the nature of the research or activation may intersect with those partners in ways that fall outside what our MSA covers."
Garcia expressed her disappointment, noting the irony of the situation given the cosigned MSA. The DSP’s head of client partnerships conveyed personal regret, stating the decision was made at a higher level and was driven by feedback from their supply and legal teams, initially raised on May 20 and unresolved internally. The representative acknowledged Check My Ads’ mission and expressed hope for future collaboration under different circumstances.
The Broader Context of DSP Vetting
It is important to acknowledge that DSPs routinely conduct thorough vetting processes for potential buyers before granting them access to their platforms. These processes often include assessing financial stability and operational capacity. An ad tech consultant, speaking anonymously, indicated that DSPs may perform their own audits to identify potential red flags, such as concerning financial filings. However, Garcia asserts that no such financial audit was conducted by the DSP in question.
The core issue, as perceived by Check My Ads, appears to be the DSP’s apprehension regarding a watchdog having a direct operational seat. The consultant noted that it is a reasonable concern for any DSP, stating, "No DSP is going to knowingly onboard a party whose stated purpose is to turn that seat into an exposé." This sentiment suggests a potential conflict between the industry’s public discourse on transparency and its practical implementation when faced with entities designed to scrutinize its inner workings.
A Pattern of Reluctance
The unnamed DSP is not an isolated incident. Check My Ads has reportedly encountered similar hesitations from other programmatic platforms. In one instance, another DSP, after reaching out to White for a podcast appearance, subsequently declined her request for platform access to conduct tests.
A more concrete example involves Thrad, a platform specializing in ad placements within generative AI responses. While Thrad initially approved Check My Ads’ platform usage, issues arose concerning campaign setup. Specifically, Check My Ads selected sensitive targeting categories (politics, abortion, mental health, LGBTQ) where Thrad stated it could not place contextual LLM response ads. Additionally, the Check My Ads merchandise storefront was not configured for European shipping, despite the inclusion of European audiences.
Even after Check My Ads rectified these issues by removing sensitive targeting categories and correcting the storefront error, Thrad ultimately refused to launch the campaign. Andrea Tortella, CEO of Thrad, communicated to Garcia that Check My Ads did not align with their ideal customer profile. Thrad did not respond to multiple requests for comment from AdExchanger.
These experiences suggest a widespread industry reluctance to grant direct access to entities that function as independent auditors, even when those entities profess a commitment to constructive engagement and industry improvement. Garcia and White believe that the industry’s stated commitment to transparency has discernible limits, particularly when it involves potential exposure of supply chain dynamics.
Implications and Future Outlook
The refusal by DSPs to onboard Check My Ads, despite initial agreements and a shared rhetoric of transparency, highlights a critical tension within the digital advertising ecosystem. While the industry consistently emphasizes the importance of trust and openness, practical application appears to falter when faced with an organization whose very mission is to hold that ecosystem accountable.
This situation raises several implications:
- The Definition of Transparency: The reluctance of DSPs to grant access to watchdog organizations suggests that the industry’s embrace of transparency may be conditional, prioritizing brand safety and partner comfort over genuine, deep-dive scrutiny.
- The Role of Watchdogs: For organizations like Check My Ads to effectively fulfill their mandate, direct access to platforms is crucial for empirical research and evidence-based advocacy. Without it, their ability to provide actionable insights and drive meaningful change is significantly curtailed.
- Small Advertiser Vulnerability: Check My Ads’ stated goal of helping small advertisers navigate programmatic complexities is undermined if the very platforms they seek to analyze are inaccessible. This leaves smaller players potentially more vulnerable to inefficiencies and opaque practices.
- Industry Self-Correction: While DSPs have a right to vet their partners, rejecting an organization like Check My Ads, which aims to improve the ecosystem, could hinder industry-wide self-correction and innovation.
Despite these challenges, Check My Ads remains committed to its mission. Garcia extended an open invitation to any DSP that is confident in its supply chain and willing to collaborate. "If there are any DSPs out there that are confident in their supply and want to help us make programmatic accessible to small businesses," Garcia stated, "reach out to us." The organization continues to seek partnerships that prioritize genuine transparency and collective improvement, aiming to bridge the gap between industry rhetoric and operational reality. The ongoing dialogue and potential for future collaborations will be crucial in determining whether the digital advertising industry can truly live up to its promises of openness and accountability.







