★★★★★
The app stopped syncing after the last update and support took a week to reply. We lost orders during the outage and had to switch to a competitor.
Blockio Card Testing Blocker
by Blockio
Stop attackers testing stolen cards on your checkout, and block the countries and IPs you choose.
- Rating
- 5.0
- Reviews
- 3
- Pricing from
- $6.99/mo
- Launched
- Aug 2026
First seen 18 Sep 2026 · Data updated 1 week ago
Worst recent reviews
1- and 2-star reviews reveal what this app gets wrong: the gaps a competitor could fill.
About Blockio Card Testing Blocker
Card testing is when bots run stolen card numbers through your checkout, leaving a burst of small declined payments and gateway fees for orders you never received. Blockio scores each checkout attempt on device, bot, velocity and direct-checkout signals, then applies it inside Shopify's checkout — so express checkouts like Shop Pay are covered. Choose Monitor, Balanced or Aggressive. Country, IP, VPN and proxy blocking are included. If Blockio is unreachable, checkout carries on.
Highlights
- Stop card testing attacks before they reach your payment provider
- Spot bots making repeated checkout attempts from one device or address
- Catch checkout links that skip your storefront, like cart permalinks
- Works inside Shopify checkout, including Shop Pay and Apple Pay
- Block by country, IP, ISP or ASN, and auto-block VPN and proxy traffic
Languages
English