How to Check Lead List Quality Before Buying: A Simple Verification Tool

The Challenge of Lead List Quality

Businesses often purchase lead lists to grow their customer base, but these lists can contain invalid emails or inactive phone numbers. BeaconCheck is a web tool designed to help assess lead list quality before use.

What BeaconCheck Does

BeaconCheck is a standalone web tool that scores and verifies lead lists (emails/phones) for accuracy. Users upload a CSV file and receive a Validity Score - a percentage indicating how many contacts appear deliverable.

The tool highlights potentially invalid entries like dead emails or bounced domains. It does not clean or modify the list, but provides pass/fail indicators for each entry.

How BeaconCheck Works

The process is simple: upload a lead list in CSV format, and BeaconCheck processes it using verification APIs. The tool returns a downloadable CSV with new columns showing validity status for each email and phone number, along with an overall Validity Score.

For example, a list with 1,000 leads might receive a 72% Validity Score, indicating approximately 720 contacts appear valid.

Who Can Use BeaconCheck

BeaconCheck is designed for:

- SMBs, freelancers, and sales teams buying lead lists from platforms like Apollo, ZoomInfo, or Upwork

- Marketing agencies reviewing client lists

The tool is free for lists under 100 leads, with paid options starting at $0.05 per lead or $99/month for unlimited use.