Adyen
Adyen allows businesses to accept ecommerce, mobile, and point-of-sale payments.
What detecting Adyen tells you about a site
Adyen is an enterprise payment platform, so you spot it on the checkout flow rather than the marketing pages. The tell is its client SDK — a script pulled from Adyen's checkoutshopper-live.adyen.com host plus a global the Drop-in/Components library exposes, sometimes an iframe hosting the hosted payment fields. Finding it signals a serious merchant: Adyen is rarely the choice for a side project, since onboarding is contract-based and skews toward marketplaces, large retail and businesses processing across many countries and payment methods. Its presence implies a finance/payments team and real cross-border volume.
The detail that matters for Adyen
The host segment is a live/test giveaway: a checkoutshopper-test reference means you have caught a staging or sandbox deploy, while -live is production. Seeing the test variant on a public domain is itself a finding worth flagging.
Adyen in a real-world stack
When you find Adyen, it rarely travels alone. Common alongside other commerce infrastructure — a tax/fraud layer, a subscription billing tool, and frequently a headless storefront on a JS framework.
About
Adyen allows businesses to accept ecommerce, mobile, and point-of-sale payments.
Categories: Payment processors
Quick facts
Detection methodology for Payment processors
Payment SDKs identify themselves through their script src URL (`js.stripe.com/v3/`, `www.paypal.com/sdk/js`, `cdn.adyen.com/`) and runtime globals (`Stripe`, `paypal`, `AdyenCheckout`). We surface the exact SDK version via the sourcemap when shipped — Stripe Elements 14.x vs 5.x, PayPal Checkout v5 vs v6 — which matters for security and compliance work much more than the categorical 'they use Stripe' answer.
How we detect Adyen
Sourcemap Explorer carries 1 fingerprint signal for Adyen, spread across 1 channel — javascript global. The exact patterns are listed below, and you can replay each one in Chrome DevTools to confirm a match by hand.
Each signal alone is rarely conclusive — Sourcemap Explorer cross-references all of them and weights by confidence. You can reproduce any of these checks yourself in Chrome DevTools.
Window-level global the technology installs on page. Reproducible by typing the path into the DevTools console.
window.adyen.encrypt.version = ^(.+)$
FAQ
How do I check if a website is using Adyen?
Open the page in Chrome, click the Sourcemap Explorer toolbar icon, and read the Stack tab. Adyen's specific fingerprints here are javascript global, and the popup flags Adyen whenever any combination of them is found. The same checks can be reproduced manually in DevTools — see the "How we detect" section above.
What Adyen version can Sourcemap Explorer detect?
Adyen ships as a hosted payment processors rather than a bundled npm package, so version-specific detection isn't always possible. Where the platform leaks a version in response headers (`X-Powered-By`, `Server`, generator meta tags) we surface it; otherwise we report presence only.
Where can I read more about Adyen?
Official site: https://www.adyen.com. For Sourcemap Explorer's detection guide, see the deep-dive link below or the related guides in the cross-link section.
Keep reading on Sourcemap Explorer
Practical guides
Alternative tools
Detected by Sourcemap Explorer
Open the popup on any page running Adyenand you'll see the exact version pulled from the bundled package.json when sourcemaps are exposed.