Securing e-commerce, one store at a time.
We're a small team of security engineers, data scientists and e-commerce people. We build focused Shopify apps — Blockly Fraud Filter and Blockly Checkout Customizer — because every merchant deserves enterprise-grade protection without an enterprise budget. Blockly was formerly known as Shieldy.
Protection shouldn't need a security team
Online fraud costs e-commerce merchants billions every year. Most security and checkout tools are either too expensive for small businesses or too complex to set up. We started Blockly to change that.
Our mission is to democratize the tools big retailers take for granted — IP intelligence, proxy detection, AI risk scoring, checkout rules and compliance — and make them accessible to every Shopify store, regardless of size or budget.
Focused apps
Native & fast
Human supportWhat we build
Fraud PreventionBlockly — Fraud FilterBlock IP, country, VPN/proxy, Tor, bots and fraud orders — built with Shopify Functions.
Learn more
Checkout · Coming soonBlockly — Checkout CustomizerValidate orders, customize shipping & payment methods, add checkout components and track conversion — no code.
Learn moreDeep expertise in fraud & checkout
Our core expertise spans the full spectrum of online fraud prevention, network security and Shopify checkout.
VPN & Proxy Detection
Real-time detection of VPN connections, commercial proxy services, residential proxies, and datacenter IPs. Our database covers 500M+ IP addresses with 99.7% accuracy, updated every 15 minutes from 40+ intelligence sources.
- Commercial VPN providers (NordVPN, ExpressVPN, Surfshark, etc.)
- Residential proxies (Luminati, Smartproxy, Oxylabs)
- Datacenter & hosting provider detection
- Web scraping infrastructure identification
Tor Network Blocking
Complete Tor exit node blocking with real-time relay list synchronization. Prevents anonymous access frequently used for fraudulent orders and account abuse.
- Live Tor exit node list updated every 30 minutes
- Tor bridge and relay detection
- Onion routing fingerprinting
- Configurable block/challenge/log actions
Bot & Scraper Detection
AI-powered bot detection that identifies automated traffic, web scrapers, and spy browser extensions attempting to steal your product data, pricing, and store intelligence.
- User-agent pattern analysis (Scrapy, Selenium, Puppeteer)
- Behavioral fingerprinting (mouse, scroll, click patterns)
- Spy extension blocking (PPSpy, AliHunter, Minea, Koala Inspector)
- Rate limiting and request anomaly detection
IP Geolocation & Country Blocking
Precision geolocation down to city level with country, region, and ISP-based access control. Protect your store from high-risk regions while allowing legitimate customers.
- City-level geolocation accuracy
- Country and state/province blocking
- ISP and ASN-based rules
- Custom redirect rules per region
AI Fraud Scoring & Order Protection
Machine learning model analyzing 40+ signals per order to calculate fraud risk scores. Automatically cancel high-risk orders before fulfillment to save revenue and reduce chargebacks.
- IP reputation + geolocation analysis
- Email domain and pattern validation
- Device fingerprint correlation
- Historical fraud pattern matching
Checkout-Level Blocking
Server-side checkout validation using Shopify Functions. Block orders at the payment stage based on email, phone, name, address, and ZIP code patterns — impossible to bypass from the client side.
- Email pattern rules (disposable, specific domains)
- Phone prefix and format validation
- Billing/shipping address matching
- Built on Shopify Functions for native integration
Small team, deep expertise
A focused team with deep expertise in network security, machine learning and the Shopify ecosystem.
Robert John
Founder & CEOOver 10 years of experience in e-commerce security and fraud prevention. Former security engineer at a Fortune 500 company.
Sarah Chen
CTOExpert in network security, proxy detection, and machine learning. Built large-scale IP intelligence systems serving millions of requests daily.
Michael Torres
Lead Engineer — Proxy & VPN DetectionSpecialist in VPN/proxy/Tor fingerprinting and detection. Maintains our real-time IP intelligence database covering 500M+ addresses.
Emily Park
Head of ProductFocused on making advanced security accessible to every Shopify merchant. Oversees feature design and merchant experience.
Our technology stack
IP Intelligence Database
500M+ IP addresses classified in real-time. Aggregated from 40+ data sources including ISP records, BGP routing data, honeypots, and proprietary scanning infrastructure. Updated every 15 minutes.
AI Risk Engine
Machine learning model trained on millions of transactions. Analyzes 40+ signals per order including IP reputation, device fingerprint, behavioral patterns, and email/phone validation.
Shopify Functions
Built natively on Shopify's checkout extensibility platform. Server-side execution means checkout rules run at the infrastructure level — impossible to bypass from the browser.
Edge Network
Globally distributed infrastructure ensures low-latency protection wherever your customers are, with real-time threat data synchronized across all edge nodes.
Ready to protect
your store?
Start with the app you need today — every one of them is free to install and built natively on Shopify.
- Free plans
- No code
- Human support