Data Methodology & Verification Standards
How we aggregate public registries, validate deliverability with 0-bounce SMTP handshakes, and guarantee 97%+ inbox delivery for B2B sales and growth teams.
Deliverability
97.4%
Direct SMTP check
Refresh Cycle
24h
Continuous update
Phone Match
99.1%
Active lines only
Compliance
100%
CAN-SPAM & CCPA
1. Primary Source Aggregation
Our data engine compiles records directly from legally public US business sources. We combine Secretary of State corporate registration filings, federal EIN bulletin updates, verified Google Business Maps profiles, state professional licensing boards (medical, dental, legal, contracting), and active corporate web presences.
2. The 3-Step Verification Pipeline
1 Syntax & DNS/MX Resolution
Every domain and email address undergoes RFC compliance parsing, authoritative nameserver lookups, and active MX record discovery to filter dead or parked domains.
2 Real-Time SMTP Handshake (No Email Sent)
We simulate an inbox handshake directly with recipient mail servers (Google Workspace, Microsoft 365, proofpoint) to confirm mailbox existence without sending unwanted emails or pinging spam traps. Catch-all inboxes are isolated and flagged.
3 Physical Presence & Recency Scoring
We cross-check physical addresses against USPS postal databases and evaluate customer review velocity. Companies with no verified customer activity or operational signal in the last 180 days are excluded from export files.
3. Why We Guarantee 97%+ Deliverability
Traditional data brokers refresh their records once per quarter or once per year, causing bounce rates to spike past 15-25% as employees churn and companies relocate. OpenLeads utilizes daily delta checks: if a domain expires or an inbox returns an SMTP 550 error, it is purged within 24 hours.
Our Bounce-Replacement Guarantee
If any lead file downloaded from OpenLeads exceeds a 5% hard-bounce rate when mailed within 14 days of purchase, we replace invalid contacts with verified replacements at no charge.
4. Compliance & Privacy Protection
All data published on OpenLeads consists strictly of professional B2B information (business name, official business address, corporate email, commercial phone line). We do not collect or distribute sensitive personal identification data (SSN, consumer financial data, health records). Our operations strictly respect the CAN-SPAM Act, the California Consumer Privacy Act (CCPA), and provide automated opt-out mechanisms for any business wishing to remove their public listing.
Downloadable Sample Files Coming Soon
Our public anonymized sample CSV packages are currently undergoing final privacy checks. In the meantime, you can reach out to our team for custom early-access previews.
Request Sample File Access