Sources & Fact-Checking

Primary sources used for unstable Udimi marketplace and affiliate claims on Solo Signal.

Udimi buyer documentation

Buyer mechanics and filters are checked against Udimi's current buyer help documentation.

Udimi affiliate documentation

Referral-link and welcome-gift claims are checked against Udimi's current affiliate-link documentation.

Udimi help center

Adjacent product and tool references are checked against the current first-party help center.

Last checked

Primary Udimi references used for this build were checked on August 21, 2026.

How this publication works

Solo Signal is designed to help readers make better decisions about solo ads and paid email traffic. Educational pages explain mechanics and measurement; commercial pages add marketplace context where it is relevant. Affiliate relationships are disclosed, and merchant-specific facts that can change should be checked against current first-party sources.

Our standard for claims

We distinguish a platform's published features from an outcome a buyer might achieve. We do not present traffic delivery as proof of lead quality, sales or profit, and we do not invent firsthand testing, testimonials or earnings. Readers should verify current merchant terms before purchasing.

Corrections and updates

Paid-traffic products, filters, promotions and policies can change. When a material fact becomes outdated, the preferred action is to update the existing relevant page rather than leave contradictory versions across the site.