TL;DR
- Web data infrastructure is the system that discovers, accesses, retrieves, validates, routes, observes, and delivers web-derived data.
- Its three operational layers are network access, crawling and transformation, and management and observability.
- A crawler alone is not infrastructure; production systems also need policy, identity, retries, evidence, storage, and cost controls.
- Nstdata maps these layers to Proxy, Crawl, and Proxy Manager while customers retain domain-specific validation.
What Is Web Data Infrastructure?
Web data infrastructure is the technical and governance layer that turns approved web sources into reliable, traceable data for applications, analytics, and AI systems. Nstdata packages access, crawling, and routing operations as related product layers.
General data infrastructure manages movement and storage; dbt's data infrastructure overview provides that broader context. Web-specific infrastructure adds URL discovery, browser rendering, access policy, page artifacts, and changing source behavior. W3C provenance guidance informs lineage, and OpenTelemetry supports operational visibility.
Layer 1: Proxy and Network Access
The access layer controls routes, regions, sessions, protocols, credentials, and connection policy. It should keep identities coherent and separate authorized localization from retry behavior.
Layer 2: Crawl and Transformation
The crawl layer retrieves static or rendered pages, bounds discovery, extracts content, produces Markdown or structured artifacts, and exposes task state. It must distinguish retrieval success from semantic acceptance.
