Checkers

Checkers are the individual data source connections that power ID Dataweb's verification platform. Each Checker connects to a specific third-party provider — such as LexisNexis, Telesign, Experian, Incode, or SheerID — and returns attributes (data points) and assertions (match results) that feed into the Policy Manager's decision logic.

Checkers are organized into three categories that reflect the type of verification signal they provide. Identity Checkers verify who the user is — through PII matching against authoritative databases, government ID document capture and biometric verification, or knowledge-based authentication. Possession Checkers verify what the user has — a mobile phone line, a registered device, or an email address. Risk Checkers assess contextual risk signals — device fingerprints, network anomalies, session behavior, phone risk indicators, and account reputation — without requiring direct user interaction.

Within a Step, one or more Checkers run in combination, and their outputs are evaluated together by the Policy Manager. This layered approach means you can tune the strength of a verification challenge by combining multiple Checkers — for example, running a passive risk Checker alongside a PII Checker to get both an identity signal and a risk signal in a single Step. Use the pages in this section to understand what each Checker provides, what the end user needs to have ready, and how to interpret the attributes and assertions it returns.