Ad Fontes brings its real‑time news quality signals to Index Exchange’s Index Marketplaces
Ad Fontes Media, the media intelligence company that rates news for reliability and bias, today announced a partnership with Index Exchange, one of the world’s largest independent supply‑side platforms. Through the partnership, Ad Fontes’ real‑time news quality signals are now available through Index Marketplaces, enabling media buyers to more easily identify and invest in high‑quality news at scale.
As AI‑driven search and discovery tools reshape how consumers access information, early signals show that high‑quality news publishers are demonstrating notable resilience. Advertisers are increasingly returning to trusted news environments, as established publishers continue to attract loyal, direct audiences seeking timely, authoritative reporting, even as AI summaries and LLM‑generated overviews become more prevalent.
“There have been growing concerns about how AI‑driven search may impact traffic to news publishers,” said Vanessa Otero, founder and CEO of Ad Fontes Media. “While overall traffic patterns are changing, early data suggests that publishers producing accurate, originally reported journalism in real time are faring better than many other types of sites. These publishers provide essential value that AI cannot fully replicate—particularly trusted reporting and thoughtfully curated experiences that help audiences understand what matters most.”
Through the partnership, Ad Fontes’ NewsAI evaluates news quality in real time at the article level, with those insights made available through Index Exchange’s Data Vendor Ecosystem. This integration informs impression‑level decisioning within Index Marketplaces, allowing brands and agencies to direct media investment specifically toward trusted, high‑quality news environments without sacrificing scale or efficiency.
“The internet has changed dramatically over the past two decades, and not always in ways that benefit high‑quality news,” said Marybeth McGaugh, Chief Customer Officer at Index Exchange. “Index has long supported premium publishers, and this partnership reinforces the enduring value of trusted news for both marketers and consumers. By working with Ad Fontes, we’re helping media buyers more confidently identify and invest in high‑quality news through signal‑rich, sell‑side decisioning.”
Buyers and Index Marketplace partners can now activate campaigns targeting high‑quality news using Ad Fontes data within Index Marketplaces. Marketers and agencies interested in leveraging the integration can contact their Ad Fontes or Index Exchange representatives for access and implementation details.



