Publica pushes OpenRTB over VAST tags to optimize CTV ad yield

The shift from tag-based to server-side protocols is essential for resolving the 'waterfall' latency that often plagues streaming environments. For publishers, this technical migration directly translates to higher programmatic revenue by exposing inventory to more sophisticated bidding algorithms. For the broader ecosystem, standardizing on OpenRTB reduces the data fragmentation characteristic of early CTV, allowing buyers to make decisions based on precise device and user parameters. As the industry moves toward standardized ad pods, transitioning to oRTB ensures publishers are technically equipped to handle complex creative requirements while maintaining a broadcast-quality viewer experience. Watch for rising adoption rates of OpenRTB 2.6, which specifically targets advanced CTV use cases like dynamic podding.

Publica is positioning itself within a broader industry push to move CTV inventory away from legacy VAST tag waterfalls toward server-to-server OpenRTB transactions. The IAB Tech Lab has been advancing OpenRTB 2.6 with specific CTV enhancements, including support for dynamic ad pod construction and more granular device signals, which gives publishers a clearer path to monetize streaming inventory through real-time bidding rather than sequential tag calls. This protocol evolution directly supports the technical argument Publica makes about latency reduction and yield improvement.

The competitive landscape for CTV monetization platforms has intensified as publishers seek alternatives to waterfall-based SSPs. Publica's emphasis on OpenRTB-native integrations positions it against these incumbent platforms by offering publishers a lighter-weight, protocol-first approach that avoids proprietary ad server dependencies. The company's pitch resonates particularly with mid-tier streaming services that lack the engineering resources to maintain complex tag-based integrations across multiple demand sources.

On the demand side, the shift toward OpenRTB in CTV aligns with buyer-side pressure for more transparent auction mechanics. The IAB's 2024 CTV measurement standards update called for greater consistency in how impressions are counted and reported across programmatic CTV transactions, which is easier to enforce when all parties transact over a standardized protocol like OpenRTB rather than bespoke tag implementations. For Publica's publisher clients, adopting oRTB 2.5 or 2.6 not only improves yield but also simplifies compliance with emerging measurement and transparency requirements that advertisers increasingly demand before committing CTV budgets.