A network of high-performance web platforms, developer utilities, and productivity engines — engineered with mechanical efficiency, decoupled microservices, and client-side zero-server security principles.
Each application is engineered as a dedicated standalone service, optimized for specific user personas and workloads.
Science-backed nutrition and workout companion tailored for sustainable body transformation. Calculate precise macros, follow structured training programs, and monitor body composition analytics with zero friction.
Blazing-fast client-side document processing workspace. Convert, compress, merge, and manipulate PDFs and office formats instantly without server vulnerability — your sensitive files never leave your browser memory.
An indispensable daily workstation for developers. Inspect and verify JWT tokens, format nested JSON/YAML, test regular expressions, and generate cryptographic hashes with sub-second responsiveness.
Astronomically calibrated Vietnamese Lunar-Solar calendar platform. Instant date conversion, auspicious hours (Giờ Hoàng Đạo), traditional solar terms (Tiết Khí), and cultural festival timelines — fast, accurate, and ad-friendly.
How seang.org manages high availability, distributed caching, and automated container deployment across all edge nodes.
Traffic across all *.seang.org subdomains terminates at global Anycast edge nodes. Edge caching, Brotli compression, and automated TLS 1.3 handshakes ensure TTFB < 35ms globally.
Every backend platform is packaged via minimal Docker scratch multi-stage builds (sub-15MB binaries), running isolated container processes managed with health-check watchdog daemons.
Synthetic uptime probes monitor HTTP/2 endpoints every 60 seconds across Tokyo, Singapore, and Frankfurt. Prometheus metrics capture error rates, latency percentiles, and memory utilization.