# san-francisco-business-records

> https://san-francisco-business-records.pages.dev

## What this site answers

One query, one record. Key: **the location ID (e.g. 0413939-01-001-0413939)**.
Format: ^[0-9]{7}-[0-9]{2}-[0-9]{3}-[0-9]{7}$
Entities: 45980

## Source

- Origin: City and County of San Francisco, Treasurer & Tax Collector — Registered Business Locations (DataSF)
- URL: https://data.sfgov.org/d/g8m3-pdis
- Last collected: 2026-10-02
- Re-use: Open Data Commons Public Domain Dedication and License (PDDL)

## Access points

Every HTML page has a Markdown twin at the same path with the `.md` extension. Example: `/how-to-read/` -> `/how-to-read.md`. Links inside the Markdown files already point to the twins.

Search index, served as JSON with open CORS:

- `https://san-francisco-business-records.pages.dev/d/n/cles.json` — the name-index keys
- `https://san-francisco-business-records.pages.dev/d/n/<key>.json` — names starting with that key -> [identifier, name, city, state, type]
- `https://san-francisco-business-records.pages.dev/d/r/<fragment>.json` — records; fragment = hash of the identifier: h = 0, then for each character h = (h*31 + character code) modulo 4096; in hexadecimal on 3 digits
- `/sitemap.xml` — every page

These paths are **version 1** and will not change without notice. Bulk access, an availability guarantee or a change feed goes through `/pro/`.

Indexable pages: 11

## What this site is NOT

- This is not the official register and does not replace consulting it.
- Holding a licence is the minimum legal requirement, not a quality mark.
- One record per location.
- No individuals.
- Open means no end date in the file.
- This site ranks no one.

## Privacy

Only names carrying a company word are published; individuals are left out.