Trading plates, or thinking about it?Own the auction platform and launch your own market

Add with a live preview that changes as you type, then publish, edit, cancel and relist. The letters are three dropdowns with their Latin equivalents, so a letter that is not on the traffic-authority table can never be entered.

Three groups ordered by urgency, not by amount: an auction with two minutes left does not sit below one with three days to run. Each carries its live countdown and where its owner stands in it.

Sent and received on one page. The seller can accept or decline; the bidder can withdraw an offer while it still stands.

Three groups, each with its own counter: awaiting your reply · in progress · completed. And every deal shows the arithmetic rather than the result: the value, then the deposit, then the commission and its tax, then the amount due — or the net the seller receives.

Balance, held and available, plus a debit/credit statement where every entry carries the balance after it — the customer reads it line by line and never calls to ask where their money went.

A link in the seller’s name showing only their published plates, separate from the page that manages them so drafts stay private. They put it on their Snapchat or X profile and pull free visitors to you.

A simplified tax invoice for every commission, with a QR code and a printable sheet.

Thirteen kinds, delivered instantly: you were outbid, you won, an offer arrived, your payment cleared, your deadline is near. Every notification is a reason to come back to your platform.

A deposit is held once per auction and released to the losers — not when the hammer falls but after the winner’s money is collected. Release it earlier and re-awarding becomes impossible, because everyone else’s bids would have no money behind them.

Not “the whole deposit, always”: a percentage you set, with the rest returned to its owner, and zero switches it off. It carries an undo window because it is a human decision made in one tap that may land on the wrong name — and the undo is a reversing entry, not an erasure.

Payment holds; it does not complete. The money stays locked with you until you verify the transfer of ownership and release it. Either side can raise a query, which freezes the release until you rule — release to the seller, or refund to the buyer.

A payment gateway with test and production environments and a hosted payment page, so card data never touches your servers — or a bank transfer you confirm after reconciling it. Every operation carries its own entry, so a page refresh or a second confirmation never tops a balance up twice.

Every transfer to a seller opens a payout order with its beneficiary, IBAN, amount and deductions. The IBAN is a snapshot taken when the order was issued, so money never lands in an account changed after the fact — and execution requires a transfer reference.

A simplified invoice for every commission with a QR code, a chain linking each invoice to the one before it, and a screen showing that chain’s integrity. No invoice is issued against a malformed tax number — refusing is safer than issuing an invalid one.

A visitor sees a state, not a figure. An automated check compares what is sent to the browser against an allow-list, so any new field that leaks it stops the release before it reaches production.

An offer’s amount reaches nobody but the person who made it and the seller — not on the page and not over the realtime channel. The full record stays with you for audit.

The amount due is computed on the server, the time comes from its clock, and identity from a signed session. Nobody bids below the minimum even if they tamper with the page.

A hidden button is not a guard. Forfeiture requires the window to have lapsed, a refund is refused while its owner’s bid still stands, and completion requires a confirmed payment — and every guard has a test that tries to get around it from outside the interface.

Bidder names are masked on the public ledger, and phone numbers appear on no public page. Passwords are hashed with a per-account salt.

Six operations per ten seconds per user on a single listing, and the same on sign-in and sign-up — so your auctions cannot be drowned in scripts, and a double tap never records the bid twice.

You pick your colour and the whole scale is derived from it: buttons, badges, borders and states. You are not asked for three coordinated colours, forget the third, and leave a stray shade showing in a corner.

“About” and “Terms” are free-form documents with sections you add and remove and a publish flag: write at your own pace, then publish. “How the market works” is a fixed template with text you edit.

One setting for search engines, another for answer engines, a third for generative models — so that your platform is the one named when somebody asks about the plate market, rather than a competitor’s site.

When a seller sends their plate’s link on WhatsApp, a card appears with your name, your logo and your image. Change the logo and it takes effect at once, with no stale copy stuck in the platforms’ caches.