Data
When you use Tomba.io, you're tapping into one of the most advanced and comprehensive datasets on the public web. We analyze and process over 2 billion pages monthly to index fresh, relevant business data with zero reliance on third-party data providers.
You can explore how our robot works here.
🔍 How We Find Email Addresses
We use a combination of powerful web crawlers and smart algorithms to build the most accurate B2B email database.
1. Collecting Publicly Available Emails
Our crawlers scan:
- Blog posts
- Company websites
- PDFs, XLS files
- Forums and comment sections
These emails are publicly accessible, and we store only what’s relevant and verified.
2. Guessing Emails with Algorithms
We use pattern recognition like:
firstname.lastname@domain.comf.lastname@domain.com
We iterate intelligently based on company email formats. If the guessed email is likely valid, we return it with a confidence score (0–100).
🤖 Crawlers – Our Backbone
Tomba’s crawlers don’t just find emails. They perform dozens of specialized tasks to enrich and verify every record:
🔧 Jobs Performed by Our Crawlers
- DNS, WHOIS, and SMTP resolution
- Detect gender from names
- Real-time data enrichment
- Identify and update personal vs. generic emails
- Discover and store email patterns for each domain
- Extract website descriptions and social media links
- Detect and store geolocation (country, city, ZIP, state)
- Validate and delete invalid records
- Add phone numbers and tech stack data
We crawl and process over 2 billion URLs each month, constantly refining our database to maintain accuracy and freshness.
🧼 Data Cleanliness: We only store about 6% of crawled emails and strictly avoid personal emails (like Gmail, Yahoo, Outlook).
🚫 What We Don’t Store
At Tomba.io, data quality and privacy are our priorities:
- ❌ No duplicate records
- ❌ No personal webmail addresses
- ❌ No fake or low-confidence emails
🌐 Data at Scale
Tomba.io is home to the largest professional email database:
| Metric | Value |
|---|---|
| B2B Emails | 450+ million |
| Unique Company Domains | 70+ million |
| URLs Crawled Monthly | 2+ billion |
All data is unified under a global standardized schema ready to use and integrate.
🧠 Types of Data We Provide
Tomba.io provides much more than emails. Here are the categories of data we crawl, enrich, and deliver:
- Website Data: Metadata, descriptions, contact details, social links, and company details.
- LinkedIn Data: Find emails via LinkedIn URLs with precision.
- Technologies Used: Identify what tools and platforms the domain is built on.
- Similar Websites: Get competitor and look-alike sites to target similar businesses.
By combining web-scale crawling, real-time enrichment, and intelligent filtering, Tomba.io delivers the cleanest and most powerful B2B data in the market helping you connect with your ideal prospects at scale. 🚀