Every technical page on this site is written and reviewed by the CC Generator Editorial Team. This page exists so you know who that is, what we are qualified to write about, and what we are not.

Who we are

We are a small team of developers and QA engineers who build and test payment forms for a living. We publish under a team name rather than individual bylines. That is a deliberate choice, and we would rather say so plainly than invent a photogenic expert who does not exist: the accuracy of a page about the Luhn algorithm does not depend on whose face is next to it, and a fabricated author profile would be worth less than nothing.

What that means in practice is that responsibility here is collective. No page ships without a second person checking the claims in it, and when something is wrong, it is the team that owns the fix — not an individual contributor who may have moved on.

What we know well

Our working experience is in payment integration and test automation, so that is what this site covers:

  • Card number structure — how issuer identification numbers, account identifiers and check digits are laid out under ISO/IEC 7812, and how the networks differ.
  • The Luhn algorithm — what it catches, what it misses, and the mistakes people make implementing it.
  • Payment gateway testing — the sandbox environments and test card sets published by Stripe, PayPal, Adyen and others, and why a number that passes validation still fails at authorisation.
  • Test data management — generating, scoping and disposing of synthetic data for QA environments without dragging real cardholder data into scope.
  • The parts of PCI DSS a developer actually touches — what counts as cardholder data, why test numbers are not in scope, and where tokenisation moves the boundary.

What we do not cover

Knowing your limits is part of being trustworthy, so here is ours. We do not publish:

  • Financial advice. We will not tell you which card to apply for, how to manage debt, or what to do about your credit score. We are not licensed to, and we are not qualified to.
  • Card comparisons or recommendations. No “best rewards card” content, no affiliate card links.
  • Credit repair or lending guidance.
  • Legal advice. We describe how laws such as the CFAA or PCI DSS are generally understood to apply to synthetic test data; that is background, not counsel. For your situation, ask a lawyer.
  • Anything that helps someone commit fraud. Numbers generated here carry no balance and cannot authorise a transaction. That is the whole point, and we will not publish content that pretends otherwise.

If a topic falls outside the list above, we link out to someone who does know rather than writing filler about it.

How we work

Our full process is written up in the editorial policy: where claims come from, what gets verified before publishing, how often data-heavy pages are re-checked, and how corrections are handled. The short version is that technical claims are traced back to a primary source — a standards document or a payment provider’s own documentation — and pages that republish third-party data carry a visible date showing when that data was last checked.

We get things wrong sometimes. When we do, we correct the page and say what changed rather than quietly editing it.

The commercial side of the operation is written up separately in How This Site Works: advertising is the only revenue, there are no affiliate links anywhere, and nothing you generate ever leaves your browser. That page also explains how to verify each of those claims yourself.

Contact

Corrections, disputed claims and “this code does not compile” reports go to . We read every one. If you are reporting a factual error, a link to the primary source that contradicts us is the fastest way to get it fixed.

For anything else, the contact page lists the right address.