Detect Fast Checkout
Fast Checkout is a one-click purchases for buyers without requiring a password to log in.
Detection looks at script sources, javascript globals across 3 fingerprint rules among the site's public responses.
01
Websites using Fast Checkout
Loading website list…
02
Signal classes
PluginView evaluates public page signals in these classes when identifying Fast Checkout. Individual fingerprint rule bodies are proprietary and are not published.
- Script sources
- JavaScript globals
03
Example public indicators for Fast Checkout
Illustrative indicators derived from public catalog metadata for Fast Checkout. A live scan may match additional proprietary rules beyond these examples.
- js.fast.co/
- FAST_VERSION:
- Fast.Events
04
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Fast Checkout signature (3 rules) at the time of the scan.
- Does not establish
- A sitewide install of Fast Checkout, an active vendor contract, exclusive use, or that Fast Checkout is still in place today.
05
How to check a site for Fast Checkout
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Fast Checkout signals.
- 2. PluginView reads only public responses (script sources, javascript globals) and scores them against the Fast Checkout signature set (3 rules).
- 3. Review the confidence score and text explanation for Fast Checkout on the results page.
06
FAQ: detecting Fast Checkout
- Can PluginView detect Fast Checkout without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Fast Checkout — typically script sources, javascript globals. It does not bypass authentication or paywalls.
- What category is Fast Checkout?
- Fast Checkout is classified under Ecommerce in the PluginView directory.
- How many fingerprint rules cover Fast Checkout?
- This reference currently tracks 3 fingerprint rules across script sources, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Fast Checkout?
- Illustrative public indicators for Fast Checkout include js.fast.co/; FAST_VERSION:; Fast.Events. A live scan may match additional proprietary rules beyond these examples.
