Checkout Shield scores each checkout attempt for fraud signals, limits repeated attempts and stops card testing, with a monitor mode so you can review results before blocking anyone.
8
Checkout Steps Guarded
15+
Fraud Signals Scored Per Attempt
1-click
Lockdown Mode When Trouble Hits
0
Real Customers Touched Until You Say So
Each checkout attempt is scored against several signals, and the result decides whether it continues, is challenged or is blocked.
Every checkout step gets weighed against a stack of independent signals and a real verdict, not one twitchy rule that nukes your best customer by accident.
See exactly who would've been caught before you block a single real shopper. Prove it works, then flip the switch to enforce.
A hidden trap field, a browser-only proof token, typing-speed analysis, and mouse activity checks catch scripts that never touch a keyboard.
Caps how many times one IP, session, email, or device can hammer your checkout in a short window, then cools them off harder every time.
Detects rapid, mostly declined charges for similar amounts, the pattern of card testing.
Cross-checks visitors against known-abuse databases and throwaway email domains before they ever reach your inventory.
Only ship to a handful of countries? Turn away checkout attempts from everywhere else, automatically, no manual review needed.
Bolt on a professional-grade fraud score at the exact moment your customer confirms, with a hard stop for the very worst offenders.
Shows a quick, familiar verification only to the traffic that earned it. Real shoppers barely notice. Scripts choke, every time.
Repeat offenders get timed out, then timed out longer, then locked out for good. No manual IP-blocking spreadsheet required.
The instant you sense trouble, tighten every limit and force verification site-wide, then let it release itself on a timer.
A dedicated shortlist of the orders that raised eyebrows, with one-click block, allowlist, or status-change actions.
Every order that raised a flag carries its score, band, and reasoning right there next to the order itself. Your fulfillment team doesn't need a security degree. They just need to glance at the card.
Immediate email the moment something severe crosses your line, an optional rollup digest so low-level noise doesn't drown your inbox, and an optional chat message so your whole team knows the second an attack starts, not the next time someone happens to glance at the dashboard.
Checkout Shield stands guard on its own. Connect an outside service for more risk data.
The heavyweight in the lineup, a paid risk score built from a fraud network far bigger than any one store could ever see on its own. It earns its own section below. Keep scrolling.
A location database that lives on your own server, not someone else's API queue. Country rules and datacenter-network detection run instantly and locally, with nothing to call and nothing to wait on.
A community-built record of addresses already caught misbehaving elsewhere. If the internet flagged them before your customer even loaded the page, Checkout Shield already knows.
A second, independent set of eyes on the visitor's address, commercial-grade fraud scoring that catches what a free list alone would let slide.
A long-running public blacklist of addresses and emails already caught abusing sites just like yours. Old troublemakers don't get a clean slate here.
Knows the difference between a customer and a connection built to hide one. Anonymizing traffic gets weighed accordingly, not waved through blind.
The public registry of throwaway domains, refreshed on a schedule so newly minted burner addresses don't slip through the week they first show up.
When a visitor earns a second look, the shield hands off to Joomla's own proof-of-work challenge or to whatever captcha plugin you've already got installed, Cloudflare Turnstile included.
Every one of these is optional, and every one is switched on independently. Checkout Shield works with none of them connected. Add one and you've added another opinion in the room before an order gets trusted.
The fraud hitting your checkout today isn't a bored teenager with a stolen card. It's automated, tireless, and increasingly built by machines that never sleep and never get bored trying. MaxMind minFraud answers with the same kind of firepower, a risk model built on machine learning, trained across a fraud network spanning thousands of stores, spotting patterns no single shop could ever see on its own.
Screening is priced per transaction, paid straight through to MaxMind, and only on the checkouts you choose to screen. No subscription. No J2Commerce invoice. Just a small pass-through charge, same as any specialist you'd pay to check one thing well.
Now put that against what one bad order actually costs. The processing fee on the original charge. The processing fee again on the refund. The chargeback penalty stacked on top of both. The item already boxed, labeled, and shipped. The shipping itself, gone for good. The inventory that never comes back. The hour someone on your team spends untangling all of it after the fact.
Compare that with the per-transaction screening charge.
Add Checkout Shield and start scoring every checkout attempt.
A general-goods store owner wakes up to forty declined transactions and three approved ones, all placed between 2 a.m. and 2:20 a.m., all for suspiciously similar small amounts. Velocity limiting and card-testing detection would've caught the pattern by attempt six, throttled the source, and had it queued for review before the owner ever poured coffee.
A store selling downloadable templates keeps eating chargebacks from orders tied to email addresses that bounce the second a receipt goes out. Disposable-domain screening flags the throwaway inboxes at signup, and card-testing detection catches the validation pattern before a stolen card ever reaches a successful charge.
A multi-vendor marketplace owner catches a risky, high-scoring order about to trigger a vendor commission payout. The payout hold on flagged orders keeps that commission parked until the order proves itself out, protecting honest vendors from a fraud problem that was never theirs to begin with.
A store runs a limited-drop sale and watches scripted checkouts try to snap up the entire allocation in under a minute. Tightened velocity limits, the human-verification challenge, and the behavioral bot signals turn the scripted rush into a fair queue real shoppers can actually win.
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Score each checkout attempt for risk and block card testers and bots before they reach your gateway, with a one-click lockdown when needed.
Documentation
User Guide (Version 6)Set rules for checkout fields, such as numbers only for a phone number, so customers are asked to correct entries that break the rule.
Give shoppers a slide-out cart drawer with a free shipping progress bar and inline coupons, so they never leave the page to see their cart.
Shoppers pick their address from Google suggestions and your checkout fills in the fields, which saves a lot of typing on a phone.
Check visitors in the background with Cloudflare Turnstile on any captcha form, so real customers rarely see a challenge.
