WHAT IT IS
The canonical inbound framework (attract, engage, delight) was popularized by HubSpot. In practice a modern inbound program combines SEO/GEO/AEO content, conversion-optimized landing pages, progressive profiling, marketing automation journeys, and sales-ready lead scoring — instrumented so marketing-sourced revenue is measurable separately from outbound-sourced revenue.
HOW IT WORKS
Execution lives on a stack: a CMS or site framework, a marketing automation platform (HubSpot, Marketo, Pardot, Braze, Customer.io), a CRM, analytics, and a content operating model. The failure mode is content without a conversion path or conversion paths without content — both leak revenue.
WHEN TO USE
Use inbound when buyers research before buying, when outbound is saturating, or when unit economics require a lower cost-per-acquisition than paid channels alone provide.