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url-shortener

Designs URL shortener systems focusing on ID allocation, caching, and read/write workloads.

Updated Jun 5, 2026
Search Tags:#caching#distributed systems#id generation#url shortener#redirect latency
One-click install
npx skills add https://github.com/hung-phan/system-skills --skill url-shortener-hung-phan
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: url-shortener
Source: https://github.com/hung-phan/system-skills/tree/main/skills/system-review/references/interview-templates/url-shortener
Command: npx skills add https://github.com/hung-phan/system-skills --skill url-shortener-hung-phan

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill assists in designing a URL shortener system, focusing on efficient ID generation, caching strategies, and read/write patterns for high-scale, low-latency redirection.

Core Features & Use Cases

  • ID Generation: Strategies for generating unique, short, and efficient IDs.
  • Caching: Techniques for caching read paths and handling cache misses.
  • Read/Write Patterns: Designing a system to handle read-heavy and write operations efficiently.
  • Use Case: Design a URL shortener that can handle billions of URLs with sub-100ms p99 redirect latency and ensure high cache hit rates.

Quick Start

To design a URL shortener, use the skill with the command: 'Design a URL shortener system for handling 100B URLs with a 10:1 read:write ratio and sub-100ms p99 redirect latency.'

Frequently Asked Questions about url-shortener

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I design a URL shortener system for high-scale read-heavy workloads?▼

Designing a URL shortener for read-heavy workloads requires efficient ID allocation and caching mechanisms to handle read/write patterns with low-latency redirection. This Skill guides architectural design for systems handling billions of URLs.

What are the best ID generation strategies for a distributed URL shortener?▼

The best ID generation strategies for a distributed URL shortener include hashing, counters, and random number techniques. These approaches ensure unique, short, and efficient IDs necessary for distributed systems and high-scale redirect latency optimization.

How does caching improve redirect latency in a URL shortener?▼

Caching improves redirect latency in a URL shortener by storing read paths to handle cache misses and ensure high cache hit rates. Proper caching techniques maintain sub-100ms p99 redirect latency even with billions of active URLs.

Can I use this to design a URL shortener for 100 billion URLs?▼

Yes, you can design a URL shortener for 100 billion URLs with a 10:1 read:write ratio and sub-100ms p99 redirect latency. The Skill requires knowledge of distributed systems, caching, and ID generation techniques to execute this scale.

What prerequisites do I need to understand URL shortener ID allocation and caching?▼

To understand URL shortener ID allocation and caching, you need prerequisite knowledge of distributed systems, caching mechanisms, and ID generation techniques. This Skill applies these concepts to handle read/write workloads and efficient redirection.

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