The practical difference.
Sources checked 2026-09-20. Published by Data SDK.
| Decision |  Data SDK | Leadfeeder / Dealfront |
|---|---|---|
| Main focus | Worldwide company identification and page context. | Company visitor tracking within the Dealfront product family. |
| Identification | Company-level; no individual identity or proven intent. | Company-level website identification. |
| Working style | Use available company details in your research process; confirm delivery. | Visitor feeds, company filters, CRM activity, and related prospecting tools. |
| API and resale | Full API coming soon. Confirm access and white-label/resale rights. | Ask for current API, embedding, and redistribution terms. |
What the vendor documents
- Leadfeeder's introduction identifies it as a tool within Dealfront for recognizing visiting companies. Introduction to Leadfeeder
- Its visitor-tracking guide describes custom feeds, CRM notifications, and using Dealfront Target for contact research. Leadfeeder visitor-tracking guide
When to consider Leadfeeder / Dealfront
Evaluate Leadfeeder when your team wants a visitor-feed workflow and needs to check how it connects to an existing CRM.
When to evaluate Data SDK
Evaluate Data SDK for company recognition and page context, or discuss a future branded product feature if you are a builder.
Data SDK offers worldwide company-level visitor identification with available company details and pages viewed. It does not identify the person or prove buying intent. The full API is coming soon; white-label scope and resale terms require agreement. Start free trial opens an email request. Pricing and usage limits are not published.
Ask before choosing.
Which features belong to Leadfeeder, which require another Dealfront product, and what reaches your CRM?
- Test useful matches in your own markets, including startups and larger businesses.
- Compare like-for-like company records; distinguish contacts from the person who visited.
- Confirm required integrations, data handling, contract length, pricing units, and any API or resale rights.
A useful pilot.
Choose a small research queue and follow each matched business through your actual handoff. Measure useful records and duplicate work.
What this comparison does not establish.
A suggested contact at a matched business is not proof that the contact visited. Confirm product packaging and integration scope directly.
Written by Data SDK using its stated product scope and the linked vendor documentation. Vendor statements are attributed claims, not independent performance tests. Fit guidance is our assessment. This directory covers selected relevant alternatives, not every provider. Prices, plan eligibility, coverage, and terms should be confirmed directly.