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