#system-design-interview

Articles tagged with #system-design-interview

System Design Essentials: Load Balancer
0. What is Load balancer Load balancers distribute incoming client requests to computing resources such as application servers and databases. It is a traffic director for application’s incoming reque
Mar 30, 20265 min read4
System Design Essentials: Domain Name System (DNS)
0. Introduction Domain Name System translates a domain name such as www.example.com to an IP address. From human-readable to machine-readable. 1. DNS Resolver Your router or ISP or popular DNS pr
Mar 30, 20262 min read10
Design a URL Shortener Like Bit.ly: Notes on the Unknowns
This article is not a step-by-step solution. It’s a record of the assumptions I had, the gaps I discovered, and the details I didn’t fully understand until I tried to design a URL shortener myself. 1. Solved: 2026-01-15 2. Reference Solution https...
Jan 17, 20266 min read15