Scattered data. Clear answers.

What we do

Public information is often published as raw feeds, spreadsheets, or scattered pages. DatumHorizon collects selected public datasets, checks them, and presents each one as a focused page: the answer first, the records beneath it, and the source beside the numbers. Every page shows when its data was collected, what it covers, and what it does not.

What is on the site now

• Software support deadlines: Compare database and language release cycles, maintenance status, and published end-of-life dates.
• Known exploited vulnerabilities: Explore CISA’s catalog by vendor, product, and date added. Follow each record back to the source.
• AI models and performance: Compare selected current API and open-weight model releases with benchmark evidence, price, and serving metadata.
• Recent NYC construction activity: Review recent NYC DOB filings and approved permits, with source-linked property context when a BBL matches PLUTO.

How the data is handled

Each page is generated from a validated snapshot. Source responses are kept with checksums, records are checked for expected counts, identifiers, and duplicates, and only a complete snapshot is published. If collection or validation fails, the last good pages stay online. Every topic also offers its full records as CSV and JSON downloads. The sources and methodology page explains each source, its license, and its limits.

What we are not

DatumHorizon is independent. We are not affiliated with, or endorsed by, the organizations whose data we present. Nothing on the site is professional, security, legal, or financial advice; check the linked source before you act on any record.

How the site is funded

The site is free to use. We may show advertising through Google AdSense to help cover costs. The privacy policy explains how advertising and analytics work on the site.

Corrections and feedback

Found a mistake, or know a public source we should cover? Write to hello@datumhorizon.com. The contact page explains what to include.