Guides
Practical answers to the questions people ask after getting hit. Each one solves the problem properly — including the parts that need no LayerCall — and says plainly what the check will get wrong.
How to stop fake signups
A practical guide to stopping fake and automated signups: what to check, in what order, and what each check costs you in real users. Includes copy-paste code.
How to block disposable email addresses at signup
Detect throwaway and temporary email providers at signup — how the lists work, why regex fails, and what a blocklist costs you in real customers.
How to detect VPN and proxy users at signup
How VPN and proxy detection actually works, why ASN lookups miss most consumer VPNs, and why detecting one should rarely mean blocking someone.
How to stop free trial abuse
Stop repeat signups draining your free tier — what actually links one abuser's accounts together, and how to raise friction without punishing genuine new users.
How to add fraud checks without losing real customers
The failure mode nobody measures: fraud checks that quietly reject genuine customers. How to add screening you can actually trust, and how to prove it is not costing you signups.