Checkout Security Shield

Checks checkout pages for unverified payment gateways, hidden pre-checked extras, unencrypted connections, and known fraud domains.

Know if a checkout page is safe before you enter your card details. Checkout Security Shield is a free browser extension that checks any checkout or payment page for warning signs — before you pay, not after you've been scammed. WHAT IT CHECKS ON EVERY CHECKOUT PAGE: ✓ Payment gateway verification — see if the page uses a recognized, trusted payment processor. If a checkout asks for your card with no recognized processor, you'll see a clear warning. ✓ Known scam domain alerts — checks the site against a list of tens of thousands of domains reported for fraud and phishing. If you land on one, you'll get a warning before you enter any payment information. ✓ Hidden extras — flags pre-checked boxes for insurance, subscriptions, newsletters, or "premium" add-ons that get added to your order unless you uncheck them. ✓ Unencrypted connection warning — alerts you if a checkout page isn't using a secure connection. ✓ Auto-renewal warnings — flags when a purchase will renew automatically. WHY IT'S DIFFERENT - 100% free, no account, no sign-up - Works automatically, no configuration needed - Zero data collection, zero network requests — everything runs locally in your browser - One click to turn it on or off from the extension popup