Privacy‑safe Lookalike Audiences — Australia (L2)

Build effective lookalike cohorts for programmatic and social campaigns across Australia without compromising consumer privacy — PIPEDA-aware and engineered for performance.

Request a consult Privacy & data practices

Use cases: acquisition, retargeting expansion, location-based growth
Channels: programmatic DSPs, Google/Facebook custom lists, CTV
Coverage: Australia-wide, province-level control

Overview

Our Level‑2 privacy‑safe lookalike process generates audience cohorts by probabilistic similarity and aggregated feature signals, avoiding any export of personal identifiers. Designed for Australian markets regulatory context, we provide transparent controls and documented data minimization.

Privacy-first

*** PII sharing, cohort thresholds & k‑anonymity enforced.

Audience fidelity

High-signal lookalikes using behavioral and contextual weights.

Measurement-ready

Campaign-level lift estimation and deterministic controls for campaign validation.

How L2 Lookalikes Work

We transform aggregated source audiences into privacy-safe vectors, then apply similarity scoring under strict thresholds to produce L2 cohorts suitable for cross-platform activation.

Aggregate & hash features in-tenant
Enforce cohort minimums and noise injection
Export only cohort IDs and size ranges (*** PII)

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Compliance & Australian markets Regulations

Newpossibility aligns our lookalike generation with PIPEDA guidance and Australian markets best practices for data minimization, consent management and transparency.

Requirement	Our Approach
Consent	Platform-level consent capture; *** PII export
Purpose limitation	Auditable purpose tags and TTL
Data minimization	Aggregate-only cohorts; k-anonymity checks
Access & redress	Client audit logs & deletion workflows

Case studies

Retail chain — Ontario

50% uplift in ROAS using L2 cohorts across programmatic + social with preserved privacy guarantees.

Local services — Vancouver

Improved CPA by 28% through location-weighted lookalike expansion respecting opt-outs.

Controls & Activation

Clients receive immediate controls for audience size, region, and sensitivity. Exports are limited to cohort references compatible with major DSPs and platforms.

Geo filters

Province, DMA, radius targeting.

Sensitivity

Control signal weighting to reduce demographic inference risk.

Platform exports

DSP-friendly cohort IDs; measurement tags supported.

FAQ & Technical Details

Only aggregated behavioral, contextual and hashed feature vectors derived in-tenant. *** raw PII leaves the environment.

We implement PIPEDA-aligned consent collection, retention limits, audit logging and data minimization; clients get documentation for due diligence.

Yes — cohorts are exported as platform-compatible IDs or onboarded via secure partners following platform policies and our privacy constraints.

Resources & Next Steps

Download our privacy overview, request a technical brief, or schedule a demo to see L2 lookalikes applied to your Australian markets campaigns.

Download privacy brief Schedule demo