Tomba Email Count by Domain

Use this endpoint when you need a quick quantitative overview of email coverage for a domain before committing to a full email search or enrichment workflow. Ideal for prioritizing outreach targets by assessing the size and composition of a company's indexed email addresses by department and seniority, without retrieving actual email addresses.

• Domain not found or not indexed — returns zero counts
• Invalid domain format — likely a 400 or validation error
• Domain too new or obscure — returns minimal or empty breakdown
• Payment failure — 402 response if USDC payment not processed
• Rate limiting — too many requests in a short period