Detect Square
Square is a mobile payment company that offers business software, payment hardware products and small business services.
Detection looks at script sources, javascript globals across 4 fingerprint rules among the site's public responses.
01
Websites using Square
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02
Signal classes
PluginView evaluates public page signals in these classes when identifying Square. Individual fingerprint rule bodies are proprietary and are not published.
- Script sources
- JavaScript globals
03
Example public indicators for Square
Illustrative indicators derived from public catalog metadata for Square. A live scan may match additional proprietary rules beyond these examples.
- js.squareup.com
- SqPaymentForm
- Square.Analytics
- __BOOTSTRAP_STATE__.storeInfo.square_application_id
04
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Square signature (4 rules) at the time of the scan.
- Does not establish
- A sitewide install of Square, an active vendor contract, exclusive use, or that Square is still in place today.
05
How to check a site for Square
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Square signals.
- 2. PluginView reads only public responses (script sources, javascript globals) and scores them against the Square signature set (4 rules).
- 3. Review the confidence score and text explanation for Square on the results page.
06
FAQ: detecting Square
- Can PluginView detect Square without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Square — typically script sources, javascript globals. It does not bypass authentication or paywalls.
- What category is Square?
- Square is classified under Payment processors in the PluginView directory.
- How many fingerprint rules cover Square?
- This reference currently tracks 4 fingerprint rules across script sources, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Square?
- Illustrative public indicators for Square include js.squareup.com; SqPaymentForm; Square.Analytics. A live scan may match additional proprietary rules beyond these examples.
