Talk of the Town: Nextdoor Triples Conversions With Award-Winning Data Activation

Founded in 2011, Nextdoor is the essential neighborhood network for over 105 million neighbors across 350,000 neighborhoods, offering trusted local news, real-time safety alerts, neighbor recommendations, for sale and free listings, and local events. To fulfill its mission of building connections with nearby neighbors and businesses, Nextdoor’s lifecycle marketing team moved beyond legacy manual processes to build a world-class data activation engine powered by Iterable.

The Vision: From Manual Campaigns to Global “Best-in-Class” Data Activation

By unifying real-time user profiles and automating lifecycle campaigns, the team now orchestrates personalized outreach for millions of verified neighbors and local businesses across multiple global regions.

The goal was clear: transition from fragmented, siloed tools to a strategy that connects behavioral, demographic, and product data across their CDP, CRM, and Data Lake into Iterable to deliver dynamic, compliant content at a massive scale.

The Challenge: Fragmented Data and Manual Bottlenecks

Before their transformation, Nextdoor faced significant hurdles that limited its ability to connect neighborhoods in real-time:

• Fragmented Data: Data silos complicated the creation of unified customer profiles, undermining segmentation and personalization.
• Scaling Friction: Managing international compliance (including GDPR/CAN-SPAM), multilingual needs, and complex onboarding logic across 11 countries was a manual burden.
• Operational Inefficiency: Campaign processes were slow (only 20% automated), error-prone, and difficult to optimize for legal compliance and deliverability.
• Visibility Gaps: Tracking real-time attribution and engagement was limited by legacy integrations and reporting silos.

The Solution: A Hybrid Data Model for Real-Time Engagement

Nextdoor architected a sophisticated marketing stack to unlock and activate its data. Key pillars of the solution included:

1. Unified Data Pipelines: Developed robust Twilio Segment + Iterable pipelines to ingest real-time behavioral signals, enriching profiles with custom traits like user intent and geo-markers.
2. Hybrid Data Architecture: Migrated to a model that allows for regular auditing and identity unification, optimizing bounce handling and suppression logic.
3. Advanced Automation: Nextdoor increased campaign automation from 20% to 70% by leveraging Iterable Catalog to deliver individualized, dynamic content to millions at scale. This engine is steered by Iterable AI, which acts as a decision-support layer to reach the right neighbors and businesses with fewer, more relevant messages. By utilizing Predictive Goals across both B2C and B2B segments—optimizing for neighbor actions like “For Sale and Free” (FSF) listing creation and advertiser events such as completed purchases—Nextdoor replaced broad targeting with precision reaching of the top predictive deciles. This AI-driven approach, in combination with Brand Affinity, also streamlines list hygiene and optimizes engagement, ensuring that high-intent segments receive distinct communications from lower-propensity users without manual list-building.
4. Global Compliance Sync: Orchestrated two-way preference and consent syncs between Iterable and Nextdoor.com, automating onboarding for new countries with tailored regionalized workflows.
5. Direct Analytics Bridge: Deployed API-based reporting to stream data directly into Databricks and Looker, providing the lifecycle, product, and legal teams with daily campaign attribution.

Iterable has transformed how we engage with our neighbors and local businesses—enabling us to pair AI intelligence with our data ecosystem to make every interaction smarter, faster, and more human. By bridging our teams and technology, we’ve been able to scale our impact efficiently, turning complex automation into meaningful, personalized connections at a global scale.

Shweta Puri

Marketing Technology & AI Operations Manager, Nextdoor

The Impact: Award-Winning Scale and Efficiency

The shift to an automated, data-driven approach has yielded immediate and measurable results across the global neighborhood network:

• Unrivaled Deliverability: Over 1.3 billion emails sent in 2 years with a 99.9% deliverability rate, maintaining a high sender reputation even at a volume of 50M+ emails per month.
• Efficiency at Scale: Manual campaign setup time fell by 60–75%, empowering the team to launch parallel go-lives in multiple new regions simultaneously.
• Re-Engagement Success:  Automations drove resurrection rates up 14%; lapsed user engagement and US + international re-engagement reached 26M+ sends per campaign for neighbors.
• Higher Conversion: Drove ~3x higher conversions in FSF lifecycle campaigns by applying Iterable Predictive Goals to identify and target high-intent audience segments.
• Revenue Impact: Local business acquisition campaigns now support onboarding hundreds of new business accounts each month.
• Proactive Hygiene: Quarterly list clean-ups remove 10M+ unengaged contacts, preserving budget and ensuring high-quality engagement metrics.
• Compliance: 400K+ compliance suppression events reduced risk and ensured messaging alignment with opt-in and unsubscribe rules.

Nextdoor’s transformation serves as a global blueprint for the modern enterprise: by prioritizing data activation over manual execution, it has turned a complex network of 105 million neighbors into a precision engine for local connections. This shift hasn’t just boosted engagement; it has seamlessly aligned campaign reporting, global compliance, and operational efficiency into one high-performance ecosystem.

Winning the ‘Best Data Activation’ award is a testament to the power of our unified stack. By streaming real-time behavioral signals through Twilio Segment, enriching them with deep historical insights in Databricks, and activating them instantly within Iterable, we’ve turned data into a conversation. We’ve moved from manual 2D campaigns to a 70% automated, multi-dimensional engine that delivers individualized, compliant content to 105 million neighbors in their most local moments.

Shweta Puri

Marketing Technology & AI Operations Manager, Nextdoor