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YOUR GUIDED PATH

System design for interviews

Start with fundamentals, explore building blocks, then design real systems.

FUNDAMENTALSFree

How a request travels

Explore how a request travels through a visual, step-by-step model.

12 min · beginner

Latency vs throughput

Explore latency vs throughput through a visual, step-by-step model.

12 min · beginner

Vertical vs horizontal scaling

Explore vertical vs horizontal scaling through a visual, step-by-step model.

12 min · intermediate

Availability & the nines

Explore availability & the nines through a visual, step-by-step model.

12 min · intermediate

CAP theorem

Explore cap theorem through a visual, step-by-step model.

12 min · intermediate

PACELC

Explore pacelc through a visual, step-by-step model.

12 min · intermediate

Consistency models

Explore consistency models through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKSFree

Load balancers

Explore load balancers through a visual, step-by-step model.

12 min · beginner

BUILDING-BLOCKSFree

Caching

Explore caching through a visual, step-by-step model.

12 min · beginner

BUILDING-BLOCKSFree

CDN

Explore cdn through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Reverse proxy & API gateway

Explore reverse proxy & api gateway through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Rate limiting

Explore rate limiting through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Message queues & pub-sub

Explore message queues & pub-sub through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Event-driven architecture

Explore event-driven architecture through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Consistent hashing

Explore consistent hashing through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Database replication

Explore database replication through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Sharding & partitioning

Explore sharding & partitioning through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Service discovery

Explore service discovery through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Circuit breaker

Explore circuit breaker through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Idempotency & retries

Explore idempotency & retries through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Distributed IDs

Explore distributed ids through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Heartbeats & leader election

Explore heartbeats & leader election through a visual, step-by-step model.

12 min · intermediate

BUILDING-BLOCKS

Monolith vs microservices

Explore monolith vs microservices through a visual, step-by-step model.

12 min · intermediate

CASE-STUDIESFree

URL shortener

Explore url shortener through a visual, step-by-step model.

12 min · beginner

CASE-STUDIESFree

Rate limiter design

Explore rate limiter design through a visual, step-by-step model.

12 min · beginner

Chat app design

Explore chat app design through a visual, step-by-step model.

12 min · intermediate

News feed design

Explore news feed design through a visual, step-by-step model.

12 min · intermediate

Video streaming design

Explore video streaming design through a visual, step-by-step model.

12 min · intermediate

Ride sharing design

Explore ride sharing design through a visual, step-by-step model.

12 min · intermediate

Notification system

Explore notification system through a visual, step-by-step model.

12 min · intermediate

Web crawler

Explore web crawler through a visual, step-by-step model.

12 min · intermediate

Search autocomplete

Explore search autocomplete through a visual, step-by-step model.

12 min · intermediate

Distributed cache design

Explore distributed cache design through a visual, step-by-step model.

12 min · intermediate

Payment system design

Explore payment system design through a visual, step-by-step model.

12 min · intermediate

Food delivery design

Explore food delivery design through a visual, step-by-step model.

12 min · intermediate