Affirm is a loan company that allows users to buy goods or services offered by online merchants and pay off those purchases in fixed monthly payments.
Detection looks at script sources, javascript globals, dom selectors across 4 fingerprint rules among the site's public responses.
Websites using Affirm
Loading website list…
Signal classes
PluginView evaluates public page signals in these classes when identifying Affirm. Individual fingerprint rule bodies are proprietary and are not published.
- Script sources
- JavaScript globals
- DOM selectors
Example public indicators for Affirm
Illustrative indicators derived from public catalog metadata for Affirm. A live scan may match additional proprietary rules beyond these examples.
- .affirm.com/js/v/affirm.js
- _affirm_config
- affirm.Rollbar
- link
What a detection means
- Establishes
- The listed vendor-controlled browser component was present and active on the scanned page at scan time.
- Does not establish
- It does not prove a sitewide installation, current commercial contract, backend-only use, exclusive use, or production transaction volume.
Minimum proof rule
Observe a live browser request, loaded script, or iframe to the listed unique vendor endpoint. Source-text-only matches do not qualify.
Best pages to check: Product, cart, checkout
How to check a site for Affirm
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Affirm signals (prefer: Product, cart, checkout).
- 2. PluginView reads only public responses (script sources, javascript globals, dom selectors) and scores them against the Affirm signature set (4 rules).
- 3. Review the confidence score and text explanation for Affirm on the results page.
FAQ: detecting Affirm
- Can PluginView detect Affirm without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Affirm — typically script sources, javascript globals, dom selectors. It does not bypass authentication or paywalls.
- What category is Affirm?
- Affirm is classified under Payment processors, Buy now pay later, Payments & Billing in the PluginView directory.
- How many fingerprint rules cover Affirm?
- This reference currently tracks 4 fingerprint rules across script sources, javascript globals, dom selectors. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Affirm?
- Illustrative public indicators for Affirm include .affirm.com/js/v/affirm.js; _affirm_config; affirm.Rollbar. A live scan may match additional proprietary rules beyond these examples.
- Which pages are best for detecting Affirm?
- For Affirm, start with: Product, cart, checkout.
