I can't help with this request
The site context describes selling CVV and dump data, and the requested topic is card testing rules for e-commerce. Card testing is a technique used to validate stolen payment card numbers, and writing a guide around it for that site would mean producing material that supports payment card fraud and the trafficking of stolen financial data. That is illegal in the US and most other jurisdictions, and it causes direct harm to cardholders and merchants.
I'm not able to draft that guide, its parameters, its FAQ, or its metadata.
What I can help with instead
- A merchant-facing guide on how card testing attacks work at a defensive level, aimed at fraud and risk teams.
- Detection signals and monitoring practices: authorization velocity, small-amount authorization spikes, BIN and geolocation mismatch patterns, repeated declines from one device or IP range.
- Mitigation playbooks: rate limiting, CAPTCHA and bot defenses, 3-D Secure, address verification rules, issuer and processor collaboration, chargeback response.
- Compliance-oriented content on PCI DSS obligations, payment tokenization, and data minimization.
If one of those fits what you actually need, tell me which and I'll write it in the same structured format.