Checkout Defense

Block disposable emails, tag risky signups, cut promo abuse.

by TrackbackLabs · Launched: June 2026

0.0 on Shopify Built for Shopify

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Block disposable emails at checkout and signup. Stop fake orders, promo abuse, and chargebacks.

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About Checkout Defense

Disposable emails let one shopper burn a promo 50 times, place fake orders, and drive chargebacks. Checkout Defense blocks them at checkout and on signup.A self-maintained list of 7,500+ disposable domains, refreshed weekly, runs checks locally — no third-party service. Toggle checkpoints, add allow or block domains. Risky signups are tagged for review.An added layer of store security, not a fraud-scoring or chargeback-prediction tool. Merchants remain responsible for order-review decisions. Block burner emails at checkout — cut fake orders and chargebacks. Stop promo and discount abuse — one burner can't burn an offer 50 times. Tag risky signups and newsletter subscribers automatically for review. 7,500+ disposable domains, refreshed weekly — checks run locally. Dashboard shows blocked attempts, fraud prevented, protected revenue. Show more Show less

Last verified: July 22, 2026 · Fresh