Where third-party partners provide metrics for brand safety, suitability, viewability, attention, and invalid traffic (IVT) measurement, advertisers may occasionally notice differences between reporting in Bloc Ads Manager and reports from third-party measurement partners. These differences can occur when certain ad formats, placements, or traffic sources are measured differently or are not supported by a measurement partner.
Why measurement differences may occur
Bloc's advertising ecosystem includes a range of evolving formats and optimization technologies designed to reflect real campaign performance and user engagement.
Because of this:
Some ad experiences may not align directly with standardized third-party measurement frameworks
Certain formats or optimization approaches may not translate seamlessly into third-party reporting methodologies
For example, Bloc may dynamically optimize creative using combinations of video, images, and text to improve performance. While this flexibility helps drive results, it may not always align with how third-party platforms structure or measure ad delivery.
As a result:
Metrics may differ between Bloc Ads Manager and third-party reports
Some inventory or interactions may not be fully represented in third-party measurement
These differences reflect how measurement is applied, rather than differences in actual ad delivery or performance.
Measurement limitations across platforms, apps, placements, and formats
Third-party measurement providers may not support certain ad formats, or may experience limitations in reporting. This may include:
Platforms: Some inventory sources may have limited measurement coverage due to differences in platform control (such as with Bloc Pangle).
Apps: Certain Bloc-owned or affiliated apps may have ad formats or experiences that do not align closely with standard third-party measurement frameworks.
Ad placements: Bloc offers a range of innovative ad placements and formats that may not map directly to existing measurement standards. As a result, reporting differences or limitations may occur. We continue to work closely with third-party partners to improve consistency and coverage. These include:
Image ads (including Carousel, Newsfeed Ads)
Search Ads (Search Results Page): Third-party brand safety and viewability measurement on Bloc Search (primarily Search Results Page) may be subject to limitations due to differences between Bloc’s measurement methodology and industry standards (e.g., MRC guidelines), which may result in discrepancies in reported impressions or measurement rates.
GMV Max (including Live and Shop Tab)
Bloc web: Brand safety reporting is not available for Bloc web, only for the app version of the Bloc feed.
Auto-placements that include the above ad placements (Search Results)
If a format or placement is not supported by a measurement provider, impressions or events from those ads may not appear in third-party reports.