BlocklyGuides to protect & grow your Shopify store
Practical playbooks on fraud prevention, checkout optimization and EU compliance — written by the team behind our apps.
Refund Obligations Under the EU Right of Withdrawal
The 14-day withdrawal right comes with strict refund rules — original payment method, standard delivery costs included, and limited grounds to withhold. Here's what Shopify merchants owe.
High-Risk Countries: Should You Block Them?
Country blocking sounds simple but cuts both ways. Learn when to block, redirect, or allowlist by geography — and how to stop fraud without quietly killing legitimate sales.
Building a Withdrawal Audit Trail for EU Compliance
If a withdrawal is ever challenged, your records decide the outcome. Learn what to log for each request, how PDF audit reports help, and how long to keep everything.
Allowlist vs. Blocklist: Which Strategy Wins?
Blocklists chase known bad actors; allowlists permit only the known good. Learn when each fits your Shopify store, the trade-offs of both, and how a hybrid strategy wins.
The EU Omnibus Directive: What Shopify Sellers Need to Know
The EU Omnibus Directive reshaped how Shopify stores show discounts and reviews. Learn the prior-lowest-price rule, fake-review bans, and how it fits withdrawal duties.
Velocity Checks: Catching Rapid-Fire Fraud
Velocity checks flag suspicious bursts of activity — the same IP, card, or email hammering your checkout. Learn the signals that matter and how to set thresholds that stop fraud without hurting real shoppers.
GDPR vs. EU Consumer Rights: A Shopify Compliance Map
GDPR and EU consumer rights are two different regimes Shopify sellers often confuse. Here's what each covers, where they overlap, and a practical checklist for both.
Device Fingerprinting for Shopify Fraud Detection
Device fingerprinting spots the same actor behind many fake identities — even when they clear cookies and swap IPs. Learn how it works, what it catches, and how to use it responsibly on your Shopify store.
Selling to the EU from the US: Compliance Checklist
A practical compliance checklist for US-based Shopify sellers shipping to the EU — VAT and IOSS, the right of withdrawal, GDPR basics, and product labeling.
Email Domains as Fraud Signals
The email on an order tells you more than you think. Disposable domains, plus-addressing tricks, and domain age all hint at risk. Learn to read email signals and score them on your Shopify store.
The Cooling-Off Period in EU E-commerce, Explained
What is a cooling-off period, why online sales differ from in-store, and which myths trip sellers up? A clear guide to the EU 14-day right of withdrawal.
What Does AVS Mismatch Mean? AVS & CVV Checks on Shopify
AVS and CVV checks quietly guard every card payment. Learn what the match codes mean, how to read a mismatch, and how to handle failures without turning away good customers.
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