A-Leads ensures that every lead you unlock is real, valid, and actionable. We don’t just collect data from static databases — we verify it live in real-time using a multi-layered process, combining public sources, partnerships, human verification, and automated checks. This guarantees the highest accuracy and deliverability for your outreach.
🔍 What Data We Collect & Verify
A-Leads captures a broad range of person-level, company-level, and behavioral attributes:
Person-Level Data
- Job Title, Seniority, Department, Function
- Location, Job Location, Skills
- LinkedIn profile, Job Experience, Current Job Duration
- Education: University, Major, Certifications
- Recommendations, Languages, Language Proficiency
Company-Level Data
- Industry, Sub-industry, Company Keywords
- Headquarters, Number of Employees, Company Type
- Ownership, Public/Private Status, B2B Indicator
- Funding Data: Last Funding Date/Type/Amount, IPO Date, Acquired Date
- Annual Revenue, Technologies Used
Behavioral & Web Data
- Website Traffic: Monthly Visits, Pages per Visit, Avg. Visit Duration
- Bounce Rates, Rankings: Global / Country / Category
- Product Availability: Pricing, Free Trial, Demo, Downloadable, Mobile App
- Online Reviews, Documentation Availability
- Bombora Buying Intent, News Article Keywords
- Job Postings & Dates
🌐 Sources We Use
We pull and verify data from 15+ trusted public sources, including: Glassdoor, Crunchbase, Xing, LinkedIn, Wellfound, Owler, GitHub, Indeed, Docker Hub, Product Hunt, StackShare, Chrome Web Store, Craft, and more.
Additionally, we leverage:
- Public Web Crawling: corporate websites, news articles, SEC filings, press releases, government registries
- Third-Party Partnerships: public company records, business directories, social media feeds
- Human Verification: in-house research team investigates any contact info not found automatically
🕵️♂️ The Three Layers of Verification
1️⃣ Syntax & Format Check
Every email and phone number goes through automated checks for proper formatting.
Examples:
- Emails → Must contain “@” and a valid domain
- Phone Numbers → Correct country code and digit count
✅ This catches typos and obviously invalid data before any credits are spent.
2️⃣ Domain & SMTP Verification (Email Alive Check)
- Emails are checked against their domain to ensure the server exists
- Real-time SMTP validation confirms the address is live without sending an actual email
✅ Emails flagged as inactive or likely to bounce are excluded
3️⃣ Proprietary Catch-All Detection
Some domains accept all emails (catch-all), which can falsely appear valid.
- A-Leads uses intelligent catch-all detection to confirm deliverability
- Prevents wasting credits on emails that might bounce
📱 Mobile Numbers Verified Separately
Mobile numbers undergo carrier validation and activity checks, including:
- Format & number validity
- Line activity status
- Detecting VoIP or landlines if needed
✅ Only active mobile numbers count against your mobile credits (1 number = 15 credits)
💡 Real-Time Verification Advantage
Unlike traditional databases:
- No stale data → Every contact is verified the moment you unlock it
- No wasted credits → Invalid emails or numbers are never charged
- High deliverability & connection rates → Leads are fresh, verified, and ready for outreach
📊 Verification Results You Can Expect
- Triple-Verified Emails: <1% bounce rate
- Mobile Number Accuracy: 15–30% higher connection rates than static lists
- LinkedIn & Job Data: Cross-checked to confirm current role and company
🚀 Key Takeaway
A-Leads’ combination of multi-source data collection, live enrichment, and triple verification with catch-all detection means you only spend credits on leads that work. This ensures:
- Less wasted time chasing bad data
- Higher outreach success rates
- Confidence in every contact you unlock
