Block fake signups before they drain your SaaS
Disposable emails, bot-generated accounts, and credential farms pollute your user base. BigShield catches them at the signup form before they ever touch your database.
The fake signup epidemic
SaaS companies face a growing problem with fake signups. Disposable email services make it trivial to create unlimited accounts. Bot operators automate the process at scale. The result: your user metrics are inflated, your onboarding emails bounce, and your conversion data is unreliable.
Common patterns include users signing up with tempmail addresses to abuse free trials repeatedly, competitors creating fake accounts to scrape your product, and bot farms generating accounts for spam or credential stuffing.
The hidden costs add up: wasted onboarding emails ($0.01 to $0.05 each), inflated metrics that mislead product decisions, support tickets from abandoned accounts, and engineering time spent on manual cleanup.
Inline validation in under 100ms
BigShield validates emails as part of your signup flow. The API responds in under 100ms, fast enough that users do not notice any delay.
30+ detection checks for SaaS: burner domain detection (945+ domains), email pattern analysis, domain age checking, MX record validation, IP reputation, device fingerprinting, and behavioral analysis.
Integration takes minutes. Add one API call before createUser() and check the risk score.
What changes when you validate signups
Cleaner Metrics
Your signup, activation, and conversion numbers reflect real users. Make product decisions based on actual behavior, not noise from fake accounts.
Lower Support Costs
No more password reset requests from abandoned accounts, no more manual review of suspicious signups, no more bounced onboarding emails.
Better Conversion Data
When your denominator is clean, conversion rates become meaningful. Know your real funnel performance without the noise.
Reduced Spend
Stop paying for onboarding emails, provisioned resources, and support overhead for accounts that were never real to begin with.