Blockio Card Testing Blocker

Blockio Card Testing Blocker

Pricing
Free plan available. Free trial available.
Rating
5.0 (1)
Developer
Blockio

Featured images gallery

Six blocked test cards from Visa, Mastercard, Amex and Discover
  • App dashboard showing card testing protection turned on, with 1,
  • Velocity rules list blocking 3 or more payment attempts in
  • Side-by-side comparison of blocked visitors — repeated card
  • Six blocked test cards from Visa, Mastercard, Amex and Discover
  • App dashboard showing card testing protection turned on, with 1,
  • Velocity rules list blocking 3 or more payment attempts in
  • Side-by-side comparison of blocked visitors — repeated card
  • Live activity log listing each blocked visitor with time, I
  • Feature grid covering IP blocking, country blocking, VPN an

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.

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. more
  • 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

Blocking

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 (1)

Overall rating
5
Counts per rating level
  • 100% of ratings are 5 stars
    1
  • 0% of ratings are 4 stars
  • 0% of ratings are 3 stars
  • 0% of ratings are 2 stars
  • 0% of ratings are 1 stars
All reviews
August 20, 2026

So far so good, took a minute to get it setup correctly and required some back and forth but appears to be doing what its supposed to do.

Toucan Trading
Canada
7 days using the app
Blockio replied September 5, 2026

Hi there,

Thank you so much for taking the time to leave us a review! ⭐️⭐️⭐️⭐️⭐️

We’re really happy to hear that Blockio is working as expected for your store. We also appreciate your feedback about the initial setup and the back-and-forth needed to get everything configured correctly. We’ll keep this in mind as we work to make the setup experience smoother.

If you ever need any help or have questions, please don’t hesitate to reach out. We’re always happy to help!

Thanks again for your support and for choosing Blockio. 💛

Best regards,
Blockio Support Team

Support

App support provided by Blockio.

Resources

Developer

Blockio

131 Continental Dr, Suite 305, Newark, DE, 19713, US

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

Blockify Fraud Filter, Blocker
4.9 out of 5 stars 1666 total reviews • Free to install
Block fraud with IP blocker, bot blocker and country blocker
MIDA Fraud Filter, Bot Blocker
4.9 out of 5 stars 377 total reviews • Free
Block bots, fraud, fake orders using IP, country block filters
Blocky Fraud Filter IP Blocker
4.7 out of 5 stars 340 total reviews • Free plan available
Block customer: Bot protection, country blocker & bot blocker

Want to add an app?

Try Shopify free for 3 days