- 1. Directory Overview
- 2. Growth Journey: Side Project to $1M Business
- 3. Monetization Strategy
- 4. Technical Architecture
- 5. User Experience: Balancing Simplicity with Power
- 6. Competitive Landscape: David vs. Goliath
- 7. Strategic Insights: What Makes Milled Unbeatable
- 8. The Milled Playbook: 10 Lessons for Directory Builders
- Conclusion: The Power of Focused Execution
- 1. Directory Overview
- 2. Growth Journey: Side Project to $1M Business
- 3. Monetization Strategy
- 4. Technical Architecture
- 5. User Experience: Balancing Simplicity with Power
- 6. Competitive Landscape: David vs. Goliath
- 7. Strategic Insights: What Makes Milled Unbeatable
- 8. The Milled Playbook: 10 Lessons for Directory Builders
- Conclusion: The Power of Focused Execution
How Milled Built a $1M Email Directory with Just One Person

Imagine building a million-dollar business by simply organizing other people's emails. That's exactly what Chaz Yoon did with Milled.com—one of the most compelling success stories in the directory space.
Founded in 2012, this email newsletter search engine has quietly built a sustainable million-dollar business by solving a fundamental problem that every marketer and consumer faces: the chaos of email marketing. While most entrepreneurs chase complex solutions, Milled demonstrates how identifying a clear pain point and executing with laser focus can create extraordinary value with minimal resources.
The genius lies in its simplicity: Milled transforms ephemeral email content into a permanent, searchable resource. With their tagline "We receive 22,890 emails every day so that you don't have to," the platform serves as both a discovery tool for consumers seeking deals without inbox clutter and a competitive intelligence goldmine for marketers researching campaign strategies.
The result? A bootstrapped, one-person operation that generates $768K-$1.2M annually while serving 745,000+ monthly visitors—proving that remarkable outcomes often emerge from remarkably simple ideas executed with exceptional consistency.
1. Directory Overview
Company Profile | Details |
---|---|
Name | Milled |
URL | https://milled.com |
Niche/Problem Solved | The largest search engine for e-commerce emails |
Year Founded | 2012 (First commercial use: August 31, 2012) |
Current Monthly Visitors | 745.0K |
Email Archive Size | 41.9+ million emails from 100,260+ brands |
The Million-Dollar Revenue Story
From Zero to Seven Figures
Verified Revenue Performance:
- 2023 Revenue (GetLatka): $1,000,000
- 2024 Revenue (RocketReach): $768,000
- Team Size: 1 person (founder only)
- Revenue per Employee: $768K - $1M
- Growth Rate: ~20% year-over-year
Current Range: $768K - $1.2M annually
Profitable since 2019 with exceptional unit economics
Revenue calculation: With Milled Pro at $99/month ($83.25 annually), reaching $1M+ revenue implies 1,000+ paying subscribers—a testament to the platform's value for marketing professionals.
The Problem Milled Solved
The Email Marketing Paradox: Every day, brands send millions of promotional emails containing valuable deals, creative inspiration, and market insights. But once these emails hit inboxes, they're either deleted, buried, or lost forever. For consumers, this meant missing great deals. For marketers, it meant losing competitive intelligence.
Milled's Breakthrough: By creating a permanent, searchable archive of 41+ million emails dating back to 2012, Milled solved both problems simultaneously. Consumers can discover deals without subscribing to countless newsletters ("shopping without the spam"), while marketers gain unprecedented access to competitive campaigns and design inspiration.
This dual-sided approach creates powerful network effects—more brands attract more users, and more users attract more brands—establishing Milled as the definitive resource for email marketing research in a previously underserved niche.
2. Growth Journey: Side Project to $1M Business
Current Traffic Metrics
Total Monthly Visitors
745.0K
Organic Search Traffic
38.6K
Global Website Rank
~50K
Engagement Excellence
Avg. Session Duration
3:10
Pages per Visit
5.18
Bounce Rate
34.6%
Audience
62% Female
Steady Growth Over Two Years
Organic Traffic Stability (2023-2025)

Milled's organic traffic demonstrates remarkable consistency, maintaining steady growth over 24 months with seasonal peaks during major shopping periods. This stability reflects the platform's strong SEO foundation and loyal user base.
Traffic Sources: The Power of Organic Growth
Note: 50% direct traffic indicates strong brand recognition and repeat usage—users bookmark Milled as a daily reference tool.
The Launch Timeline: Patience Pays Off
2012 - The Quiet Beginning: Chaz Yoon launched Milled with no fanfare, no funding, and no team. The first commercial use was recorded on August 31, 2012. The strategy was simple: subscribe to brand newsletters, archive every email, and make them searchable.
2015 - First Public Recognition: Milled appeared on Product Hunt with the tagline "Shopping without the Spam," marking its introduction to the broader tech community.
2019 - The Breakthrough Moment: A pivotal year when Milled relaunched on Product Hunt and gained attention on Hacker News. The founder transparently shared business metrics, revealing it was already profitable as a solo operation.
2020-2021 - The Monetization Pivot: Introduction of Milled Pro transformed the platform from a free resource to a SaaS business, carefully balancing free access with premium features.
2022-2024 - Industry Recognition: Milled became the standard reference tool in e-commerce marketing circles, with competitors comparing themselves to its comprehensive archive.
Five Growth Drivers
1. SEO-First Strategy: The Content Goldmine From day one, Milled was built with search engine optimization as the primary user acquisition channel. Every archived email becomes a searchable web page, capturing long-tail queries like "Nike Black Friday 2023 email" or "Sephora newsletter examples."
2. Content Scale Advantage: The Data Moat The platform's massive email archive creates an insurmountable competitive advantage. New entrants would need to collect a decade's worth of emails to match Milled's historical depth.
3. Automated Data Collection: The Scalability Secret Using Amazon SES (Simple Email Service), Milled automatically ingests thousands of emails daily through dedicated brand addresses. Once a brand adds Milled's unique email address to their mailing list, every campaign is automatically archived within minutes—requiring zero manual intervention.
4. Network Effects: The Self-Reinforcing Cycle As more brands submit emails, the platform becomes more valuable to marketers seeking competitive intelligence. Increased marketer usage drives more brands to ensure their presence on the platform.
5. Community-Driven Growth: The Underground Tool Word-of-mouth in marketing communities accelerated adoption. Milled became one of those "underground but beloved" tools shared in Slack groups and marketing forums.
📧 Want More Case Studies Like This?
Get weekly insights on profitable directories, growth strategies, and monetization tactics delivered to your inbox.
Subscribe to Directory Gems
3. Monetization Strategy
The Evolution of Revenue Streams
Phase 1: Affiliate Revenue (2012-2019) Initially, Milled monetized through affiliate commissions. When users clicked through promotional emails to make purchases, Milled earned a percentage. This passive income model covered operational costs while keeping the platform completely free.
Phase 2: SaaS Transformation (2020-Present) The introduction of Milled Pro marked a strategic shift to recurring revenue:
Free Tier Benefits:
- Access to 12 months of recent emails
- Basic search functionality
- Brand browsing and discovery
Milled Pro ($99/month or $83.25 annually):
- Complete 10+ year email archive access
- Advanced Boolean search capabilities
- Keyword alerts and monitoring
- Email organization and collections
- Campaign categorization and filtering
- Historical trend analysis
Team Plans ($250/month for 5 users):
- Collaborative features for agencies
- Shared collections and insights
- Team-wide keyword monitoring
Current Revenue Mix:
- Primary: SaaS subscriptions (~$1M annually)
- Secondary: Affiliate commissions (ongoing)
- Emerging: Brand partnership opportunities
🚀 Ready to Build Your Own Directory?
Join 80+ entrepreneurs getting actionable insights on directory businesses, case studies, and proven growth tactics.
Get Free Directory Insights
4. Technical Architecture
The Tech Stack Behind the Magic
Core Framework: Ruby on Rails powers the entire platform—from front-end pages to database interactions. This choice enables rapid development and efficient handling of massive content volumes.
Email Ingestion System: Amazon SES (Simple Email Service) receives emails at scale. Each brand gets a unique email address (e.g., nike@milled.com). When brands send campaigns, SES automatically forwards them to processing scripts that:
- Parse subject lines, body content, and images
- Strip tracking codes for privacy and performance
- Store content in the database with optimized structure
- Archive images to a CDN (images.milledcdn.com)
Search Infrastructure: Likely powered by Elasticsearch or similar technology to handle complex queries across 41+ million emails. The system supports Boolean searches, quoted strings, and faceted filtering.
Scalability Solutions:
- AWS infrastructure for horizontal scaling
- Content Delivery Network for fast image loading
- Heavy caching to serve static content efficiently
- Automated systems requiring minimal manual intervention
The Automation Advantage: This architecture enables a single person to manage operations that would typically require a full team. Once a brand is onboarded, everything happens automatically—from email receipt to web publication.
SEO Authority Metrics
Domain Authority
74
Backlinks
154.0K
Referring Domains
10.3K
Keyword Dominance
Total Ranking Keywords
182.0K
Keyword Diversity
7,500+
"Milled" Monthly Searches
19,100
SEO Strategy
Traffic Distribution: The Long-Tail Goldmine
Individual Page Performance

Milled's traffic is beautifully distributed across thousands of individual brand pages. Each email becomes a potential SEO goldmine, with specific campaigns like "Charles Tyrwhitt 3-shirts-for-99" driving hundreds of monthly visitors. This demonstrates the power of their long-tail keyword strategy.
The Content-First Approach: Milled's SEO success stems from having millions of unique, valuable pages. Every email becomes a potential entry point from Google, capturing searches for specific brands, products, or promotional terms.
Long-Tail Keyword Mastery: With 41+ million emails archived, Milled automatically targets an enormous range of search queries without writing a single blog post. Users searching for "Warby Parker 20% off code" or "Allbirds holiday email 2023" often land on Milled pages.
Technical SEO Excellence:
- Clean URL structure (brand names + email IDs)
- Fast loading despite massive content volume
- Mobile-responsive design for all devices
- Structured data for rich search results
- Comprehensive internal linking
Natural Backlink Acquisition: Industry recognition drives organic link building. Marketing blogs, case studies, and professional discussions naturally reference Milled as the go-to email archive.
The Compound Effect: This SEO strategy creates a flywheel—more emails lead to more indexed pages, which generate more search traffic, attracting more users and brands, resulting in even more content.
5. User Experience: Balancing Simplicity with Power
Platform Features
The Email Archive: 41.9+ million emails from 100,260+ brands, creating the world's most comprehensive database of promotional email content.
Advanced Search Engine: Boolean queries, quoted strings, and sophisticated filtering by brand, holiday, campaign type, and marketing objective.
Automated Processing: Emails are archived with images preserved, tracking removed, and content optimized for search—transforming ephemeral campaigns into permanent resources.
Competitive Intelligence: Historical campaign analysis, trend identification, and brand comparison tools that provide actionable marketing insights.
Permanent Accessibility: Unlike traditional email platforms where campaigns disappear, Milled maintains permanent archives with clean URLs and optimized structure.
Design Philosophy
Search-First Interface: Clean, intuitive design that prioritizes content discovery over flashy aesthetics. The interface gets users to relevant emails quickly.
Mobile Excellence: Responsive design ensures email content displays perfectly across all devices, supporting the significant mobile user base.
Performance Focus: Despite hosting 41+ million emails, the platform maintains excellent load speeds through optimized architecture and CDN usage.
User Engagement Insights: The 34.6% bounce rate and 3:10 average session time suggest room for improvement in initial user retention. However, the 5.18 pages per visit indicates that engaged users explore extensively.
6. Competitive Landscape: David vs. Goliath
How Milled Stands Apart
Competitor | Focus Area | Milled's Advantage |
---|---|---|
CouponChief | Coupon aggregation | Full email context + historical archive |
SimplyCodes | Discount codes | Complete campaign intelligence |
Dealspotr | Community deal sharing | Automated, comprehensive coverage |
MailCharts | Paid email intelligence | Free access + larger archive |
ReallyGoodEmails | Design inspiration | Searchable content + full campaigns |
7. Strategic Insights: What Makes Milled Unbeatable
The Five Pillars of Defensibility
1. The Data Moat: Milled's 41+ million email archive represents over a decade of accumulated content that would be extremely difficult and expensive for competitors to replicate.
2. Network Effects at Scale: The platform's value increases exponentially with each additional brand and user. More brands attract more users seeking comprehensive coverage, while more users attract more brands wanting visibility.
3. SEO Authority Fortress: Years of content creation and natural backlink acquisition have established domain authority (74) that new entrants cannot quickly match.
4. Automated Infrastructure Advantage: The technical systems for email ingestion, processing, and archival represent substantial development investment and operational expertise.
5. Brand Recognition in Professional Communities: Milled has become synonymous with email marketing research within professional circles, creating brand loyalty and word-of-mouth advantages.
8. The Milled Playbook: 10 Lessons for Directory Builders
1. Start with SEO, Not Marketing Build your platform with search engine optimization as the primary user acquisition channel from day one. Milled's organic-first strategy generated sustainable traffic without ongoing advertising costs.
2. Design for Automation, Not Manual Labor Create systems that scale without proportional team growth. Milled handles 22,890 daily emails with minimal human intervention, enabling exceptional unit economics.
3. Build Network Effects into Your DNA Design your platform so that more content attracts more users, and more users attract more content providers. This self-reinforcing cycle reduces acquisition costs over time.
4. Master the Freemium Balance Capture broad audiences with free basic features while monetizing power users through premium subscriptions. Milled's approach keeps the growth engine running while generating revenue.
5. Create Permanent Value, Not Ephemeral Content Build lasting utility rather than temporary engagement. Milled's email archive creates compounding value that strengthens over time.
6. Focus Beats Breadth Every Time Target high-value, underserved markets rather than attempting broad coverage. Email marketing represents a focused but substantial opportunity that Milled dominates completely.
7. Automate Quality Control from the Start Implement automated systems that maintain content standards without manual review, ensuring consistent user experience at scale.
8. Leverage Existing Workflows Integrate with users' current processes rather than requiring behavior changes. Brands simply add email addresses to existing lists—no new software required.
9. Build Sophisticated Discovery Mechanisms Create search and filtering capabilities that help users find relevant content within large databases, preventing information overload.
10. Practice Strategic Patience Not all success is explosive; some is cumulative. Milled's 12-year journey from side project to million-dollar business proves that persistence and consistent execution often triumph over flashy launches.
Conclusion: The Power of Focused Execution
Milled.com's journey from a 2012 experiment to a million-dollar directory reads like a masterclass in strategic patience and focused execution. The key insight? Extraordinary success doesn't require complex strategies or massive teams—it requires identifying a clear problem, building an elegant solution, and executing with unwavering focus.
By choosing email marketing as their domain and committing to organic growth, founder Chaz Yoon created a sustainable business that generates substantial revenue while serving genuine market needs. The platform's success validates several critical principles:
- Automation enables scale without proportional cost increases
- Network effects create defensible competitive advantages
- SEO-first strategies generate compound returns over time
- Freemium models can balance growth with monetization
For aspiring directory builders, Milled provides a blueprint: Find the unorganized goldmine of information in your chosen niche and become its organizer. Do that well, and like Milled, you might just reverse-engineer growth—slowly at first, then all at once, until your directory becomes an indispensable part of the ecosystem you serve.
The final takeaway? Focus on value, and growth will follow—as it did for Milled, now a quiet giant in the e-commerce marketing world, proving that remarkable outcomes often emerge from remarkably simple ideas executed with exceptional consistency and long-term vision.