Executive Summary

Marketing teams at mid-market and SMB companies routinely lose landing-page attribution when prospects authenticate via third-party OAuth or when browsers strip cross-site cookies, creating blind spots in conversion funnels that make campaign ROI impossible to reconcile. This problem disproportionately affects the roughly 3 million mid-market and SMB accounts that collectively spend an estimated $18.0B on attribution and analytics tooling (roughly $6K ACV each), especially as more vendors adopt OAuth and sign-in rates increase. The product would be a tiny, privacy-first middleware layer that persists landing-page UTM and referrer state through OAuth handoffs by encoding attribution into short-lived server-side tokens and first-party cookies or auth-state parameters, deployed as a zero-maintenance serverless/edge function and shipped with lightweight SDKs for common stacks. Offer an open-core implementation for engineering teams plus a managed hosting and integration tier for marketing organizations that want turnkey delivery and connectors into major analytics, CRM and CDP platforms. This is an attractive moment: cookie deprecation forces first-party, server-side patterns; OAuth proliferation increases the frequency of attribution breaks; and serverless/edge lowers deployment friction—factors that align with a market score of 90/100 and revenue potential rated 94/100. With an addressable base of about 3M potential customers and a $6K ACV benchmark, even modest penetration would yield a meaningful business. To stand out you’ll need to be ruthlessly focused on simplicity and low integration cost—small footprint middleware that installs in hours, predictable privacy controls (no unnecessary PII), and turnkey connectors rather than attempting to be a full CDP. Be honest about challenges: competition is medium (some tag managers and CDPs already offer parts of this), cross-stack variability will demand broad SDK coverage, and privacy/regulatory work is non-trivial; those constraints argue for an iterative product that proves value quickly in a few verticals before broadening.

Market Opportunity

Persist landing-page attribution through OAuth using tiny middleware targets a $18.0B = 3M mid-market & SMBs x $6K ACV (annual spend on martech attribution/analytics tooling) total addressable market with medium saturation and a year-over-year growth rate of ~12% annual growth in martech/identity-resolution and server-side tracking categories.

Key trends driving demand: Cookie deprecation -- raises demand for server-side, first-party attribution patterns that persist through auth; OAuth proliferation -- more apps use third-party OAuth, increasing frequency of attribution breaks; Serverless & edge middleware -- lowers deployment friction for tiny persistence layers; Privacy-first identity -- brands prefer techniques that persist attribution without third-party cookies; Developer-first martech -- tools aimed at engineering teams accelerate adoption of middleware solutions.

Key competitors include Twilio Segment, RudderStack, Auth0 (Okta), DIY server-side middleware (common workaround).

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Persist landing-page attribution through OAuth using tiny middleware

Executive Summary

Market Validation

Market Opportunity

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