Stop Fake Account Creation & Bot Signups at Line Rate
Automated scripts create thousands of fake accounts to abuse promotional credits, poison analytics, and bypass paywalls. EmailScore's real-time email validation API intercepts bot registrations in <0.3ms without CAPTCHAs or slow port-25 SMTP probes.
Three Layers of Algorithmic Defense
Standard email checkers only verify whether a domain exists. EmailScore evaluates the structural authenticity of the identity itself.
Structural Lexical Coherence
Evaluates consonant-vowel distribution and natural phonetic naming structures. Algorithmic strings like 'df89xk2a' trigger instant anomaly alerts, cleanly separating bot scripts from authentic names.
Deterministic Randomness Isolation
Quantifies structural randomness and unnatural character clustering in the local-part. High-anomaly strings typical of automated credential generators are isolated before touching downstream services.
Zero-Day Burner Ledger
Correlates newly registered throwaway domains against our live ledger of 50,000+ burner and forwarder services, terminating temporary disposable mailboxes instantly.
Calibrated Triage for Real Registration Pipelines
Binary blocklists create customer support disasters. EmailScore scores risk from 0 to 100 with actionable tripartite recommendations.
Real human name structure, established MX records, corporate or reputable consumer mailbox. Grant instant account access with zero friction.
Subaddressed aliases (+tagging, dot variations), catch-all enterprise domains, or low-confidence patterns. Trigger MFA or require SMS confirmation.
Known disposable domain, PRNG random character sequence, dead MX records, or malformed syntax. Reject registration before database write.
Frequently Asked Questions
Why not just use Cloudflare Turnstile or Google reCAPTCHA?
CAPTCHAs introduce heavy user friction, reduce conversion rates by 8-14%, and are routinely bypassed by modern AI vision models and cheap human CAPTCHA-solving farms. EmailScore runs invisibly on the server in 0.3ms, analyzing the email string directly without presenting any UI hurdles to real users.
How does EmailScore detect bots using legitimate Gmail or Outlook addresses?
Bot creators frequently automate webmail account creation or purchase bulk webmail accounts. While the domain 'gmail.com' is legitimate, the local-part ('x89qj2k98a1') exhibits structural lexical anomalies and high algorithmic randomness patterns that deviate drastically from authentic human name conventions.
Will this slow down my user registration endpoint?
No. EmailScore processes evaluations in under 300 microseconds (<0.3ms) in-memory without initiating outbound network connections, SMTP handshakes, or blocking disk I/O.
Block Bot Accounts in 5 Minutes
Integrate our sub-millisecond API into your signup controller. Get 1,000 free requests every month.