Overview
HorizonJJ.com is a Next.js website backed by a Go service and PostgreSQL database. The project was built for the South Korean market, where the usual Google-centered marketing and analytics assumptions do not map cleanly onto how customers actually search, communicate, and convert.
The website captures leads and exchanges data with KakaoTalk and Naver business services. The result is a market-specific CRM alternative for sales conversion, built around the channels South Korean customers and businesses actually use.
Goals and Motivation
Most Western web stacks assume Google Search, Google Analytics, Google Tag Manager, and Google-centered SEO are the main operating layer for discovery and measurement.
In South Korea, that assumption is only marginally useful. KakaoTalk and Naver matter far more to the customer journey, especially for local businesses that depend on direct inquiries, location search, reservations, messages, and fast follow-up.
The goal was to build a system that treated those local services as first-class business infrastructure instead of bolting them onto a generic website.
Tech Stack Used
- Next.js for the public website and frontend application
- Go for backend services that needed clear API boundaries and dependable integrations
- PostgreSQL for relational lead, customer, and workflow data
- KakaoTalk business integrations for messaging and lead communication
- Naver business integrations for Korea-specific discovery and conversion workflows
Notable Problems We Solved
Korea-Specific Lead Routing
The website captures prospective student inquiries and routes that data into a workflow built around KakaoTalk and Naver services. Instead of treating a lead form as the final event, the application moves the prospect into the communication and follow-up systems most relevant to the local market.
Market-Specific CRM Behavior
The integrations forward data to and from KakaoTalk and Naver business services. This creates a lightweight CRM alternative tailored to South Korean sales conversion patterns, where messaging, local search, and platform-specific business tools matter more than generic Google analytics events.
Third-Party API Access and Compliance
Gaining access to Korean third-party REST API documentation can involve strict legal and procedural requirements. A meaningful part of the work was research: understanding service requirements, access rules, documentation constraints, business verification, and the practical boundaries around what could be automated.
That research became part of the software itself. The application had to respect the legal and operational requirements of the services it integrated with while still producing a usable sales workflow for the business.
Why This Matters
For South Korean entrepreneurs, the value of a website is not just whether it looks modern or loads quickly. The deeper value is whether it fits the local business environment.
HorizonJJ.com demonstrates that a web platform can be built around South Korean customer behavior, local third-party services, and market-specific conversion channels instead of copying a Google-first CRM and analytics model that does not fully apply.