# Changelog of Billing & Payment Stack Detector — Stripe, Paddle, Chargebee (`tiger19935/billing-stack-detector`) Actor

- **URL**: https://apify.com/tiger19935/billing-stack-detector/changelog.md
- **Full Actor documentation**: https://apify.com/tiger19935/billing-stack-detector.md

## Changelog

### 1.0.1 (2026-10)

- Documentation: limits section now reports the first live spot check.

### 1.0.0 (2026-10)

- First release: detects the payment gateway, subscription-billing platform, merchant of record, tax tool, hosted-checkout platform and wallet / BNPL provider behind a website, from its homepage and up to 7 pricing / checkout / billing pages.
- 26 vendors in data-driven signature files (Stripe, Paddle, Chargebee, Recurly, Lemon Squeezy, FastSpring, Braintree, Adyen, PayPal, Klarna, Mollie, Square, Checkout.com, Gumroad, Polar, Chargify / Maxio, Zuora, Razorpay, Paystack, Authorize.net, 2Checkout / Verifone, Shopify, GoCardless, Avalara, TaxJar, Quaderno); confidence per vendor with evidence.
- Domain list input (up to 5,000 per run) or chaining from another Actor's dataset; vendor filter, minimum confidence, optional free rows for sites without a stack.
- Public addresses only: SSRF guard with DNS pinning and redirect validation; robots.txt respected by default; one request at a time per site; automatic proxy retry after a block.
- Pay-per-event pricing: one event per site with a detected stack; the maximum cost per run is never exceeded; no double charge when the platform restarts a run.