Guides
What Is Data Enrichment? B2B Guide
Data enrichment appends missing information to your existing records. Learn how it works, the types, and how B2B teams use it to improve sales outcomes.
Guides
What Is Match Rate in Visitor Identification?
Match rate is the percentage of website visitors a tool can identify. Learn what affects it, what good looks like, and how to compare vendors.
Guides
Deterministic vs Probabilistic Matching Explained
Deterministic matching uses verified data. Probabilistic uses statistical guessing. Learn the difference, accuracy tradeoffs, and which tools use which.
Guides
How Identity Graphs Work (And Why They Matter)
Learn how identity graphs power visitor identification, why match rates vary from 5% to 40%, and how to evaluate tools based on the data behind them.
Reviews
Visitor ID Accuracy Tested: Independent Results (2026)
Independent Gartner auditor tested Leadpipe, RB2B, Warmly, Clearbit, 6sense, and Leadfeeder accuracy. See the results and what they mean for your data.
Guides
Identity Graph APIs: How They Work (Technical Guide)
How identity graphs store, match, and resolve person data. Graph structure, matching algorithms, confidence scoring, and API patterns explained for developers.
Guides
Salesforce Full of Bad Data? Visitor ID Helps
30% of CRM data decays annually. Instead of cleaning old records, add fresh visitor identification data that's verified by real website behavior.