Overview

- Character: Phúc Lê, full-stack developer (TALL stack) and niche site builder, active in SEO industry since 2016.
- Brand: Larseo, an AI SEO tool developed from internal use to public SaaS product.
- Implementation Timeline: Official launch in September 2023, achieved $11,000 revenue in first week.
- Market: International SaaS market, targeting independent SEO professionals and small teams, not directly competing with giants like Ahrefs or SEMrush.
Revenue Model
Main Revenue Source: SaaS service with monthly, annual, and lifetime deal subscription options.
How AI Generates Revenue:
- Larseo uses AI (ChatGPT API) to automatically analyze website content, suggest keywords, and provide tools like backlink analysis, traffic analysis, and keyword clustering.
- Launched Early Bird with attractive pricing packages, attracting 42 customers, generating $11,000 revenue and $450 MRR in 7 days.
- Leveraged strong demand for high-value but low-cost AI SEO tools, suitable for independent SEOers.
Revenue Details:
- 1,753 user registrations, 42 paying customers.
- Many chose lifetime deal thanks to clear development roadmap and long-term value.
- 4,900 page views during launch week.
AI Tools and Technology Used
ChatGPT API:
- Function: Analyze website content, suggest low-competition keywords, and support features like Content Gap and Keyword Clustering.
- Advantages: Accelerate SEO analysis process, provide accurate results, reduce manual processing time.
Laravel Framework:
- Function: Main platform for building Larseo (the “Lar” in Larseo comes from Laravel).
- Advantages: Enables rapid development, stability, and easy feature expansion.
AWS Serverless:
- Function: Data storage and processing, but encountered database overload issues on launch day due to unlimited Lambda workers.
Supporting Tools:
- Bubble (suggested): Not explicitly mentioned, but could be used for landing pages or initial interface.
- Email Campaigns: Used to notify beta users and Early Bird launch.
Implementation Process

Phase 1: Idea and Internal Development (January–June 2023):
- Phúc Lê built Larseo as an internal tool to manage content, backlinks, and keywords for his SEO team.
- Integrated ChatGPT API to automate tasks like keyword analysis and content optimization.
- Recognized commercial potential after being encouraged by Tony (a famous indie hacker) to turn the tool into SaaS.
Phase 2: Idea Validation (June–July 2023):
- Posted introduction about Larseo in SEO Facebook groups, received positive feedback and doubled Twitter followers (from 100 to 200 in one day).
- Ignored negative comparisons with Ahrefs/SEMrush, focused on niche market for independent SEOers.
- Built landing page and attracted 100 beta trial signups.
Phase 3: Beta Testing and MVP Development (July–August 2023):
- Completed MVP with 3 main features: Backlink Analytics, Traffic Analytics, and Keyword Finder.
- Engaged on Twitter to increase followers and beta users, reached 400 user registrations after one month.
- Encountered database overload due to AWS Lambda overflow on beta launch day, but quickly resolved, achieving 80 active users (26% of beta signups).
- Created Larseo Facebook group and public roadmap for users to track progress and suggest features.
Phase 4: Early Bird Launch (September 2023):
- Added payment system, new landing page, and blog post about how Larseo collects data to build trust.
- Proposed 3 pricing packages: monthly, annual (equivalent to 10 months), and lifetime (equivalent to 18 months).
- Launched Early Bird, achieved $11,000 revenue, $450 MRR, and 42 customers in 7 days.
- Faced payment issues from India (due to RBI regulations), resolved with PayPal and top-up.
Phase 5: Continued Development (2024):
- Added features like Keyword Clustering, Content Gap, Topic Explorer, and Backlink Monitor.
- Received 2 acquisition offers for Larseo and 2-page feedback document from users.
- Planned to reach $1,000 MRR by end of 2023 through SEO for Larseo blog and affiliate program.
Results Achieved
Revenue: $11,000 in first week, $450 MRR, 42 paying customers.
Other Achievements:
- Achieved 1,753 user registrations and 4,900 page views during launch week.
- Built active user community through Facebook group and Twitter, received valuable feedback to improve product.
- Received 2 acquisition offers for Larseo, proving commercial potential.
Notable Larseo Features:
- Backlink Explorer: Analyze backlinks to optimize SEO strategy.
- Traffic Explorer: Monitor website traffic.
- Keyword Finder: Find low-competition keywords from Google Autocomplete.
- Keyword Clustering: Group keywords to build topical map.
- Content Gap: Identify content gaps compared to competitors.
- Topic Explorer: Extract topic ideas from websites or Google Trends.
Lessons Learned
Success Factors:
- Targeted the need of independent SEOers for affordable, easy-to-use AI tools.
- Leveraged social media (Facebook, Twitter) and SEO communities to validate ideas and attract users for free.
- Publicly shared development roadmap and closely interacted with users, building trust and community.
Creative Highlights:
- Transformed internal tool into SaaS serving niche market, avoiding direct competition with large companies.
- Combined simple but effective launch strategy (email, Facebook, Twitter), achieving large revenue in short time.
- Provided lifetime deal to attract reinvestment capital into product.
Challenges and Solutions:
- Database crash on beta launch day: Quickly resolved by optimizing AWS Lambda.
- Comparisons with Ahrefs/SEMrush: Focused on niche market and unique value.
- International payments: Flexible with PayPal and top-up for Indian customers.
Suggestions for Beginners:

- Start with simple AI tool (like keyword analysis) using ChatGPT API (~$20–50/month).
- Validate ideas on Facebook groups or Twitter to collect free feedback.
- Use no-code platforms like Bubble (~$20–50/month) or frameworks like Laravel to build MVP.
- Launch on Product Hunt, Indie Hackers, or Reddit to reach early users.
- Build community through Facebook groups and public roadmap to increase engagement.
- Starting Cost: ~$50–150 (API, hosting, and landing page).
Sources and Links
- Original Source: Indie Hackers – Phúc Lê’s Larseo Story
- Larseo Website: larseo.app
- Larseo Facebook Group: facebook.com/groups/larseo
- Development Roadmap: roadmap.larseo.app
- Phúc Lê’s Twitter: twitter.com/phucle