Featured images gallery
Stop attackers testing stolen cards on your checkout, and block the countries and IPs you choose.
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.
- 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
Works with
- Checkout
- Shopify Flow
- Shopify Admin
- Card Testing Blocker
- Flow
- Fraud Filter
- IP & Country Blocker
- Klaviyo
- Shop App
Categories
Fraud types
Prevention tools
Alerts and analytics
Redirects
Localization settings
Pricing
Choose the plan that best fits your business.
Free
Free
Features
- Card testing detection & dashboard
- Monitor mode: detects, never blocks
- 5 country block rules
- 5 IP block rules
- 1 whitelist entry (never block yourself)
- Analytics: 7 days, 1,000 events/mo
Pro
$6.99 / month
or $67/year and save 20%
Features
- Blocks card testing at checkout
- Balanced & Aggressive modes
- Covers Shop Pay & express checkout
- Unlimited country & IP rules
- VPN / proxy / TOR / hosting auto-block
- Unlimited whitelist & country redirects
- Content protection & custom block page
- Analytics: 30 days, unlimited, CSV
3-day free trial
Advanced
$12.99 / month
or $124/year and save 20%
Features
- Everything in Pro
- ISP & ASN (network) blocking
- Analytics: 12 months retention
- Same price on Shopify Plus
3-day free trial
All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.
Reviews
-
0% of ratings are 5 stars
-
0% of ratings are 4 stars
-
0% of ratings are 3 stars
-
0% of ratings are 2 stars
-
0% of ratings are 1 stars
Support
App support provided by Blockio.
Resources
Launched
August 3, 2026
Data access
This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .
View customer data:
Device and activity data
-
Device and activity data
Geolocation, IP address, browser and operating system
View staff and contributor data:
Store owner
-
Store owner
Name, email address, phone number, physical address
View and edit store data:
Orders, Shopify Functions, Online Store
-
Edit orders
All order history for the last 60 days
-
Edit Shopify Functions
Cart and checkout validations
-
Edit Online Store
Online Store page content on a path controlled by the app
More apps like this
Meets our highest standards for performance, design, and integration. Learn moreOpens in new window
Meets our highest standards for performance, design, and integration. Learn moreOpens in new window
Meets our highest standards for performance, design, and integration. Learn moreOpens in new window