Understanding Lead Quality Scores

What Is a Lead Score?

Every enriched row receives a lead_score between 0 and 100. This score is a composite signal of data quality and contact reachability — it tells you how confident Trust Leads is that the contact details are accurate, the email is deliverable, and the record is complete enough to act on.

A high lead score does not mean the person is a good fit for your product; it means the contact data is reliable. A lead with a score of 90 has a valid, deliverable email, a confirmed phone number format, a complete name, and no suspicious signals. A score of 30 might mean the email domain is unverifiable, the phone number failed format validation, or the email address belongs to a known disposable provider.

Score Ranges and What They Mean

Scores are grouped into four tiers to make triage straightforward. Hot leads (80–100) are high-confidence contacts ready for immediate outreach — email is deliverable, MX records verified, no spam signals. Warm leads (60–79) are mostly reliable with one or two minor data quality issues, such as a missing phone or a first name that could not be confirmed.

Cold leads (40–59) have significant data quality gaps: the email may be valid syntactically but the MX record could not be confirmed, or the phone number is in an unrecognised format. At-risk leads (0–39) should be reviewed before use — these contacts often have invalid emails, disposable addresses, or multiple failed validation signals.

• 80–100 (Hot): Email valid + MX confirmed + phone verified + complete name
• 60–79 (Warm): Email valid, minor gaps (unverified phone, missing middle name)
• 40–59 (Cold): Email syntactically valid but MX unconfirmed, or phone issues
• 0–39 (At-risk): Invalid email, disposable domain, or multiple failures

Factors That Affect the Score

The score is computed from a weighted combination of validation signals. Email validity is the heaviest factor: a confirmed deliverable email adds up to 40 points. MX record confirmation adds 15 points. Phone number format validity adds 10 points. Name completeness (both first and last name present) adds 10 points.

Negative factors subtract from the score. A disposable email domain (from our 250+ domain blocklist) subtracts 50 points immediately, usually resulting in a score below 40. A suspicious TLD (such as .xyz, .top, .click, or .men on a free-looking domain) subtracts 20 points. A domain with no MX records subtracts 25 points.

Using Scores in Your CRM

Most CRMs allow you to import a score field and use it in segmentation rules or lead routing. Import the lead_score column alongside the enriched contact data, then create a smart list or segment for scores above 70 to feed your most active sales reps.

For marketing automation, use the score as a send-gate: only enrol contacts with a score above 60 into email sequences to protect your sender reputation. Contacts with scores below 40 can be routed to a re-engagement workflow or a data hygiene queue for manual review.