audience-measurement

A comprehensive Python toolkit for cardinality estimation algorithms (Flajolet-Martin, LogLog, SuperLogLog, HyperLogLog, HyperReal) — enabling privacy-preserving analytics, audience measurement, and sample-to-population extrapolation through probabilistic counting techniques.

A comprehensive attention and engagement tracking platform designed specifically for indie web creators and small online e-commerce platforms.

Quantcast — independent third-party profile of a public API surface, by API Evangelist. Quantcast is a San Francisco-headquartered digital advertising and audience intelligence company founded in 2006. Its flagship offering is the Quantcast Platform, an AI-driven demand-side platform (DSP) for programmatic display, video, CTV, audio, mobile, and na

VideoAmp — independent third-party profile of a public API surface, by API Evangelist. VideoAmp is a Los Angeles-based media measurement and advertising technology company, founded in 2014, that operates as a certified national TV currency provider alongside Nielsen and Comscore.

Hitwise — independent third-party profile of a public API surface, by API Evangelist. Hitwise was an online competitive-intelligence and audience-measurement company that tracked website traffic, clickstream behavior, and search-term data to help marketers benchmark share of visits, referral sources, and competitor performance across industry verti

TVbeat — independent third-party profile of a public API surface, by API Evangelist. TVbeat is a London-based, Techstars-backed advertising technology company whose platform unifies linear television and streaming (CTV) advertising operations into a single system. It lets media owners and buyers forecast, plan, transact, optimize, and measure campa

Linkett — independent third-party profile of a public API surface, by API Evangelist. Linkett is a digital out-of-home (DOOH) analytics platform for digital signage and retail displays. Its proprietary technology passively gathers audience data at the screen and reports real-time campaign performance metrics such as impressions, dwell time, and eng

Clear Channel Outdoor — independent third-party profile of a public API surface, by API Evangelist. Clear Channel Outdoor (NYSE: CCO) is one of the largest out-of-home (OOH) advertising companies in the world, operating billboards, street furniture, transit, airport, and digital out-of-home (DOOH) displays across 65+ U.S.