BlocklyGuides to protect & grow your Shopify store
Practical playbooks on fraud prevention, checkout optimization and EU compliance — written by the team behind our apps.
Blocking Cloud Hosting Providers (AWS/GCP/Azure)
Real shoppers browse from phones and home broadband, not from AWS data centers. Learn why bots ride the major clouds, how to block hosting IP ranges on Shopify, and how to do it without accidentally shutting out legitimate integrations.
How to Block User Agents on Shopify (Bot User-Agent Guide)
Block scrapers and bot user agents on Shopify without code. Curl, Scrapy, Python-requests, headless Chrome — full pattern list and how to use it.
Referral Program Abuse: Detection & Controls
A referral program should buy you real customers, not fund a person referring themselves. Learn how self-referral and referral rings work, how to catch them with device and IP correlation, and the limits that keep payouts honest.
EU Product Liability Basics for Shopify Sellers
EU product liability rules decide who pays when a product causes harm. Learn how producer and importer liability works, why record-keeping matters, and what Shopify sellers should put in place.
Shopify Checkout Blocker — Block Orders by Email, Phone, Address
Block Shopify orders at checkout by email pattern, phone prefix, customer name, ZIP code, or subtotal. Built with Shopify Functions, fully server-side.
Right of Withdrawal in Germany: A Seller's Guide
Germany's Widerrufsrecht has strict rules on the Widerrufsbelehrung, deadlines, and refunds. Here is what cross-border Shopify sellers must get right to avoid extended windows and penalties.
Shopify Content Protection — Disable Right-Click, Copy, Inspect
Protect your Shopify product descriptions, images, and design from copy-paste competitors. Disable right-click, keyboard shortcuts, and inspect element.
How to Stop Card Testing on Shopify (Complete 2026 Guide)
Card testers hit your Shopify checkout with stolen card numbers in tight loops. Learn how to detect and stop card testing in 5 minutes.
How to Block IP Ranges on Shopify (CIDR and Prefix Guide)
Block IP ranges, CIDR blocks, and ISP ranges on Shopify. From single IPs to entire ASNs — complete guide with examples.
Calculating Fraud-Prevention ROI
Is fraud prevention actually paying off, or just adding cost and friction? Use this simple ROI model that weighs losses avoided against tool cost and false positives, with a fully worked example.
Custom & Personalized Goods: Withdrawal Rules
Made-to-order and personalized products are exempt from the EU right of withdrawal — but only if they genuinely qualify. Learn what counts as custom, and how to avoid abusing the exemption.
Shopify Functions for Fraud Filter — How They Work in 2026
Shopify Functions power the new generation of fraud-prevention apps. Learn how server-side checkout rules work and why they cannot be bypassed.
Put these guides
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Block fraud, customize checkout and stay EU-compliant with apps built by the team behind this blog.
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