Checker

Why Traditional Email Verification & OTP Are Not Enough

Checker instantly flags suspicious email addresses before they can create an account, using a 170,000+ domain blacklist and sub-200ms API response.

• Temporary emails are on the rise – Services like Temp Mail let users flood platforms with disposable addresses.
• Standard email checks are weak – They verify if an email exists but can't detect temporary or suspicious domains.
• OTP can be easily bypassed – Disposable inboxes can instantly receive OTPs, defeating their purpose.

Cut costs, boost performance

By stopping junk signups, Checker helps you use server resources wisely and maintain reliable, profitable marketing funnels.

• Reduce wasted server load from fake accounts and spam signups
• Ensure fair access by blocking trial hoarders and multi-account users
• Protect business decisions with clean, trustworthy user data

Integrate and automate in minutes

Checker is built for fast setup and low effort ongoing defense—with integrations for any team.

• Connect via API for real-time checks across any workflow
• Use the WordPress plugin for fast protection without custom coding
• Track everything live with a real-time analytics dashboard

Checker helps you stay one step ahead of fake users. With powerful real-time email detection, easy setup, and airtight data protection, you can stop sign-up fraud before it costs you.

Block bad actors and grow with confidence—get lifetime access to Checker today.