# FAST.com

Netflix's ad-free internet speed test that starts on page load and measures download speed, with upload speed and loaded/unloaded latency on request.

- Category: Developer utilities · by Netflix
- Website: https://fast.com/
- Live data: yes
- Checked on the official pages: 2026-10-23

## API

- No official API. Do not scrape the site; use it by hand or through its downloads.

## Data and license

- License: FAST.com privacy statement (no separate terms found) (https://help.netflix.com/legal/fastprivacy); covers Personal speed checks; Netflix says it is not built for enterprise or certification use, and integrations happen only through select partner companies
- Commercial use unclear
- Credit: not stated
- Embedding unclear
- Quote (enterprise): "FAST.com is designed for general usage by individual Internet users. It is not designed or supported for 3rd party service certification or other enterprise usage." (https://fast.com/)
- Quote (method): "To calculate your Internet speed, FAST.com performs a series of downloads from and uploads to Netflix servers and calculates the maximum speed your Internet connection can provide." (https://fast.com/)
- Quote (latency): "FAST.com provides two different latency measurements for your Internet connection: “unloaded” and “loaded” with traffic." (https://fast.com/)
- Quote (integrations): "We work with select companies such as providers of network monitoring products and services or internet service providers that integrate our Fast.com internet speed testing software into their products and services." (https://help.netflix.com/legal/fastprivacy)
- Quote (data_collected): "IP address (which may tell us your general location and internet service provider (ISP))" (https://help.netflix.com/legal/fastprivacy)

## Rules for an agent

- No public API, no official npm/PyPI package, no open-source repo or self-hosted version (CLI wrappers you find are unofficial); Netflix only lets select partners integrate the test, so link users to fast.com rather than calling its backend.
- Do not call FAST.com's backend from your own app; there is no public API
- Do not present results as certified bandwidth measurements

Human page: https://agentgid.com/resources/fast-com/
Source: AgentGid (agentgid.com). Facts are quoted from the site's own pages; check the license page before you ship.