Day 25 / Daily GitHub Discovery / Developer Tools

Dub

Manage short links, redirects, attribution, and click analytics.

~25,000 stars · checked Sep 28, 2026
TypeScriptNext.jsPostgreSQLRedisClickHouseEdge middleware
Visit GitHub (opens in a new tab)

What it does

Dub is a link management platform with branded links, redirect rules, and analytics. Its application combines transactional link data with high-volume click events.

Why it’s interesting

Redirects need low latency while analytics needs throughput. Separating the redirect path from event analysis is a useful architecture study.

Real-world use case

Route a campaign link to different destinations by device and review click attribution.

What I can learn

  • 01

    Edge redirects and caching

    Trace how a short-link request resolves its destination close to the edge and how caching reduces redirect latency.

  • 02

    Transactional data versus analytical event storage

    Understand why link configuration belongs in transactional storage while high-volume click events go to analytical storage.

  • 03

    Tenant-owned domains and DNS validation

    Learn how a platform verifies customer DNS records before routing traffic for a tenant-owned link domain.

One thing to explore

Redirect middleware and analytics pipeline

Follow the apps/web implementation and connect it to the concepts above.

Explore the source (opens in a new tab)

10-Minute Challenge

Explore the monorepo and redirect path

Before you start: A browser and Git. Full local startup needs the services and environment configuration listed in the repository guide.

  1. Clone the repository and read its current development setup before installing dependencies.
  2. Inspect the root workspace configuration and locate the redirect handler.
  3. Trace how a click event is recorded without slowing the redirect response.
Terminal
git clone https://github.com/dubinc/dub.gitcd dub

Keep exploring

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