How LemReveal's 4-layer validation pipeline ensures every lead is accurate and actionable.
The **Data Quality Engine** is a 4-layer validation pipeline that runs on every identification to ensure the data in your dashboard is clean, accurate, and actionable.
## The 4 Layers ### Layer 1 — Domain-Match Gating Contact email domains must match the identified company's domain. No more "john@gmail.com" appearing as a contact for Stripe. This prevents freemail pollution. ### Layer 2 — Freemail Filtering Emails from Gmail, Yahoo, Outlook, Hotmail, and 30+ international freemail variants are automatically excluded from contact discovery results. ### Layer 3 — ISP Classification The 10-layer ISP detection engine separates commercial companies from ISPs, VPNs, and residential IPs. Only real commercial visitors reach your dashboard. ### Layer 4 — Automated Deduplication Duplicate company records (www vs. non-www, subsidiaries, aliases, redirect chains) are automatically merged. Duplicate contacts are collapsed into a single, canonical record.
## Key Statistics - **3,600+ predicted emails removed** that other tools would have served as "contacts" - **95%+ email verification rate** — only deliverable emails surfaced - **0-100 confidence scoring** on every identification - **22+ government registries** for cross-validation - **Automatic deduplication** across companies and contacts
## How It Compares Most competitor tools don't have a dedicated data quality engine. They surface whatever their IP database returns — including ISP traffic, duplicate records, and predicted emails that bounce. LemReveal's approach means fewer contacts but every one is real and actionable. > "We'd rather give you 50 high-confidence, verified leads than 500 entries full of ISPs, duplicates, and fake emails."
## Monitoring Data Quality View your data quality metrics from **Settings** → **Data Quality**: - ISP detection rate and classification breakdown - Contact verification success rate - Deduplication merge count - Override audit log
LemReveal identifies companies visiting your website with confidence scoring, 8 buying timing signals, and AI-generated talking points. GDPR compliant B2B lead generation from $0/mo.
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