Inside Evrim's Internet Navigation and Check-pointing

“Visibility doesn’t guarantee usability. Seeing data on a website doesn’t mean you can make use of it, accessing public data requires the right tools and systems.” - Hannah Lensing, Co-Founder, Evrim

Proper infrastructure is required to support reliable collection and preparation of that data for production.

Cartography

Cartography, named and developed by Chris Smith, is a composable, high-performance crawling engine that enables large-scale navigation, structured content extraction, and direct file ingestion. The tool is designed and tested across thousands of domains and content types. It supports multiple scraping engines, from our own async "Fleet" to third-party services, and handles both flat URL processing and deep domain-based traversal.

It’s engineered for use cases where knowing what changed, and when, is just as important as collecting the data itself.

Checkpointing Built In

At the core of Cartography is an intelligent checkpointing system, powered by a composite hashing engine. Each page and file is fingerprinted before processing. That means if nothing has changed since the last crawl, Cartography knows to skip it—preserving bandwidth, compute resources, and time.

Multi-Modal File Ingestion

Cartography is built to handle more than HTML. From PDFs and spreadsheets to embedded documents and linked assets, Cartography can identify, download, and store multi-modal content at scale - delivering it directly to storage buckets through an async streaming pipeline.

Each file is hashed, validated, and checkpointed on ingestion, ensuring only new or changed content is stored. This reduces I/O overhead and provides teams with a consistent, clean feed of high-integrity files for downstream use.

Scale-Aware Crawling

Cartography supports bulk URL processing as well as dynamic site crawling through link-following and sitemap construction. You can configure crawl depth, restrict navigation to specific domains or content types, and integrate with other components in Evrim’s infrastructure stack.

Memory-aware batch execution, detailed telemetry, and type-safe outputs make Cartography a reliable tool for continuous, high-volume collection.

Vertically Integrated, Mission-Aligned

Whether collecting market data, government filings, vendor information, or training datasets, teams face similar challenges: fragmented content, constant change, and operational inefficiency.

Our approach—combining Cartography’s intelligent crawling with the precision of our browser Fleet—solves for all three. Because we control the full collection layer, we can offer infrastructure that adapts to mission needs across industries without rebuilding the stack every time.

Built for What Comes Next

Cartography is already in production, powering our customer data collection pipelines. It’s one piece of the broader foundation we’re building at Evrim - where collection is the strategic layer of our technology stack.

If your team is ready to move beyond scripts and towards scalable, reliable, and repeatable collection, get in touch! We’d love to be your data collection solution.