Detect Klarna Checkout

Payment processorsBuy now pay later

Klarna Checkout is a complete payment solution where Klarna handles a store's entire checkout.

Detection looks at response headers, cookies, script sources, javascript globals, dom selectors across 7 fingerprint rules among the site's public responses.

01

Websites using Klarna Checkout

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02

Signal classes

PluginView evaluates public page signals in these classes when identifying Klarna Checkout. Individual fingerprint rule bodies are proprietary and are not published.

  • Response headers
  • Cookies
  • Script sources
  • JavaScript globals
  • DOM selectors
03

Example public indicators for Klarna Checkout

Illustrative indicators derived from public catalog metadata for Klarna Checkout. A live scan may match additional proprietary rules beyond these examples.

  • content-security-policy: .klarnacdnservices.netcom
  • ku1-sid
  • ku1-vid
  • .klarnaservices.com/lib.js
  • KlarnaOnsiteService
  • _klarnaCheckout
04

What a detection means

Establishes
One or more public signals on the scanned page matched a known Klarna Checkout signature (7 rules) at the time of the scan.
Does not establish
A sitewide install of Klarna Checkout, an active vendor contract, exclusive use, or that Klarna Checkout is still in place today.
05

How to check a site for Klarna Checkout

  1. 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Klarna Checkout signals.
  2. 2. PluginView reads only public responses (response headers, cookies, script sources) and scores them against the Klarna Checkout signature set (7 rules).
  3. 3. Review the confidence score and text explanation for Klarna Checkout on the results page.
06

FAQ: detecting Klarna Checkout

Can PluginView detect Klarna Checkout without logging in?
Yes. PluginView only reads publicly accessible responses when checking for Klarna Checkout — typically response headers, cookies, script sources, javascript globals. It does not bypass authentication or paywalls.
What category is Klarna Checkout?
Klarna Checkout is classified under Payment processors, Buy now pay later in the PluginView directory.
How many fingerprint rules cover Klarna Checkout?
This reference currently tracks 7 fingerprint rules across response headers, cookies, script sources, javascript globals, dom selectors. Individual rule bodies are proprietary and are not published.
What public signals suggest a site uses Klarna Checkout?
Illustrative public indicators for Klarna Checkout include content-security-policy: .klarnacdnservices.netcom; ku1-sid; ku1-vid. A live scan may match additional proprietary rules beyond these examples.

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