Is this a video course?

No. This is an interactive, slide-based learning platform. Each lesson has rich text, animated diagrams, live code editors, and quizzes. You learn by reading, interacting, and doing, not by watching videos passively.

How long do I have access?

Forever. Both pricing tiers are one-time payments with lifetime access. This includes all current 766 lessons and any future content we add.

What level of experience do I need?

None. We start from absolute basics like 'What is latency?' and build up to distributed consensus protocols. The Foundation level assumes zero prior knowledge of system design.

How much does the system design course cost?

5 US dollars for lifetime access globally, or 299 Indian rupees for lifetime access in India. One-time payment, no subscription, no hidden fees. 11 lessons are free with no signup required.

What technologies are covered?

Everything from DNS and load balancers to Kubernetes, Kafka, distributed databases, consensus protocols, stream processing, security architecture, and observability. We cover principles and real-world implementations used at Netflix, Google, Amazon, Uber, Stripe, and more.

Is this useful for system design interview preparation?

Yes. The lessons are structured around the exact topics asked in system design interviews at FAANG and top-tier companies. Interactive diagrams help you practice whiteboard-style explanations. Covers everything from URL shortener design to distributed payment systems.

How is this different from ByteByteGo or Educative?

766 interactive lessons (4x more than most competitors), 16 different diagram types that build step by step, real production examples from Netflix, Google, Amazon, Uber, and Stripe, and lifetime access for a one-time payment of 5 dollars instead of annual subscriptions costing 100 to 200 dollars per year.

Intermediate Level

Name: System Design Masterclass
Availability: InStock

Deep dives into specialized topics. Build real-world architecture skills.

449 lessons12 categories449 locked

Unlock the full Masterclass

All 766 lessons, every diagram and code editor. One payment, lifetime access.

Get $5 Lifetime Access

api-design-protocols28 lessons

API KeysLocked14 min
CORSLocked15 min
API VersioningLocked15 min
Rate LimitingLocked22 min
ThrottlingLocked15 min
Request BatchingLocked14 min
Response BatchingLocked14 min
Keep-Alive ConnectionsLocked14 min
Connection ReuseLocked15 min
Idempotency KeysLocked18 min
Token Bucket AlgorithmLocked18 min
Leaky Bucket AlgorithmLocked15 min
Sliding WindowLocked15 min
API Rate LimitingLocked15 min
Quota ManagementLocked15 min
SOAPLocked15 min
GraphQLLocked22 min
GraphQL SchemaLocked18 min
gRPCLocked25 min
Protocol BuffersLocked20 min
Apache AvroLocked18 min
Apache ThriftLocked15 min
MessagePackLocked15 min
HTTP/2 MultiplexingLocked22 min
HTTP/3 QUICLocked25 min
Schema RegistryLocked22 min
API CompositionLocked25 min
Backend for Frontend (BFF)Locked25 min

cloud-infrastructure45 lessons

Static IPLocked16 min
Dynamic IPLocked16 min
IPv4 vs IPv6Locked18 min
DHCPLocked18 min
TCP/IP StackLocked20 min
OSI ModelLocked18 min
UDPLocked17 min
CIDRLocked21 min
NATLocked21 min
SubnetsLocked22 min
VPCLocked25 min
Internet GatewayLocked17 min
NAT GatewayLocked22 min
Elastic IPLocked18 min
IPAMLocked22 min
VPNLocked25 min
Client VPNLocked20 min
Site-to-Site VPNLocked22 min
RegionsLocked18 min
Availability ZonesLocked20 min
Network SegmentationLocked22 min
IaaSLocked18 min
PaaSLocked18 min
SaaSLocked16 min
CaaSLocked14 min
DBaaSLocked16 min
ServerlessLocked22 min
FaaSLocked18 min
BaaSLocked15 min
Cold StartLocked18 min
Warm InstancesLocked14 min
DMZLocked16 min
Bastion HostLocked16 min
Jump ServerLocked14 min
VPC PeeringLocked16 min
Transit GatewayLocked18 min
Direct ConnectLocked18 min
Private LinkLocked18 min
Edge ComputingLocked20 min
Fog ComputingLocked16 min
TCP OptimizationLocked22 min
Network Latency OptimizationLocked20 min
QUICLocked22 min
WebRTCLocked24 min
Service MeshLocked24 min

data-governance-compliance23 lessons

Data ValidationLocked14 min
Data FilteringLocked14 min
Data SortingLocked14 min
Data GroupingLocked14 min
Schema ValidationLocked16 min
Data TransformationLocked16 min
Data AggregationLocked18 min
Data SamplingLocked18 min
Data QualityLocked20 min
Data ProfilingLocked18 min
Data CleansingLocked20 min
Data EnrichmentLocked20 min
Audit LoggingLocked20 min
Data Retention PoliciesLocked22 min
Data Lifecycle ManagementLocked22 min
Data PrivacyLocked24 min
Data MaskingLocked22 min
Data AnonymizationLocked24 min
Data PseudonymizationLocked18 min
PII HandlingLocked22 min
GDPR ComplianceLocked25 min
Compliance MonitoringLocked22 min
Data Governance FrameworkLocked24 min

data-replication-distribution31 lessons

Data PartitioningLocked18 min
Data LocalityLocked14 min
Data Locality OptimizationLocked16 min
Replication LagLocked18 min
Asynchronous ReplicationLocked16 min
Synchronous ReplicationLocked16 min
Semi-Synchronous ReplicationLocked14 min
Logical ReplicationLocked16 min
Physical ReplicationLocked16 min
Streaming ReplicationLocked16 min
Point-to-PointLocked14 min
Star TopologyLocked14 min
Ring TopologyLocked14 min
Hub-and-SpokeLocked14 min
Multi-Master ReplicationLocked18 min
Bidirectional ReplicationLocked16 min
Data SynchronizationLocked18 min
Change Data Capture (CDC)Locked22 min
Binlog ReplicationLocked18 min
Write-Ahead Log ReplicationLocked20 min
Log ShippingLocked18 min
Consistent HashingLocked25 min
Geographic DistributionLocked20 min
Active-Passive ConfigurationLocked22 min
Active-Active ConfigurationLocked22 min
Cross-Region ReplicationLocked18 min
Geo-ReplicationLocked18 min
Multi-Region DeploymentLocked22 min
Mesh TopologyLocked15 min
Many-to-ManyLocked15 min
Replication TopologyLocked18 min

database-types-storage39 lessons

File StorageLocked10 min
Block StorageLocked12 min
Object StorageLocked14 min
Blob StorageLocked10 min
Key-Value StoresLocked15 min
Document StoresLocked15 min
Row-Oriented StorageLocked15 min
Columnar StorageLocked18 min
Column-Family StoresLocked15 min
Time-Series DatabasesLocked15 min
Graph DatabasesLocked18 min
In-Memory DatabasesLocked15 min
Full-Text SearchLocked20 min
Search Engines (Elasticsearch, Solr)Locked22 min
Inverted IndexLocked18 min
Forward IndexLocked12 min
Bitmap IndexLocked14 min
Geospatial IndexingLocked16 min
Data WarehousingLocked20 min
Data LakesLocked20 min
Hot-Warm-Cold ArchitectureLocked18 min
Tiered StorageLocked16 min
Cold StorageLocked14 min
Archive StorageLocked14 min
Hybrid StorageLocked18 min
Bloom FiltersLocked22 min
Skip ListsLocked20 min
LSM TreesLocked25 min
Merkle TreesLocked20 min
Vector DatabaseLocked25 min
Embedding StorageLocked15 min
Similarity SearchLocked18 min
Approximate Nearest Neighbor (ANN)Locked18 min
Database FederationLocked15 min
Polyglot PersistenceLocked18 min
Multi-Model DatabaseLocked15 min
NewSQL DatabasesLocked20 min
Distributed SQLLocked18 min
Global TablesLocked18 min

devops-cicd36 lessons

Version ControlLocked14 min
Environment VariablesLocked14 min
Code VersioningLocked14 min
Build AutomationLocked15 min
Test AutomationLocked16 min
Dependency ManagementLocked16 min
Package ManagementLocked15 min
Branch StrategiesLocked18 min
Configuration ManagementLocked16 min
Feature FlagsLocked18 min
Feature TogglesLocked16 min
Continuous IntegrationLocked20 min
Continuous DeliveryLocked18 min
Continuous DeploymentLocked18 min
Deployment AutomationLocked20 min
Release ManagementLocked18 min
Artifact RepositoryLocked18 min
Smoke TestingLocked16 min
Regression TestingLocked18 min
Integration TestingLocked20 min
End-to-End TestingLocked18 min
Load TestingLocked20 min
Stress TestingLocked18 min
Performance TestingLocked20 min
Shadow TestingLocked18 min
Rolling DeploymentLocked18 min
Blue-Green DeploymentLocked18 min
Canary DeploymentLocked20 min
Zero-Downtime DeploymentLocked20 min
A/B Testing InfrastructureLocked20 min
Backward CompatibilityLocked20 min
Schema EvolutionLocked22 min
Data MigrationLocked22 min
Configuration as CodeLocked18 min
Infrastructure as Code (IaC)Locked22 min
GitOpsLocked22 min

kubernetes-containers22 lessons

ContainerizationLocked18 min
Container RegistryLocked14 min
Image VersioningLocked14 min
Declarative vs ImperativeLocked16 min
OrchestrationLocked18 min
Auto-ScalingLocked20 min
Volume ManagementLocked18 min
Persistent VolumesLocked22 min
Init ContainersLocked20 min
Jobs and CronJobsLocked22 min
ControllersLocked24 min
Reconciliation LoopsLocked22 min
DaemonSetsLocked14 min
StatefulSetsLocked22 min
Network PoliciesLocked16 min
Ingress ControllersLocked20 min
OperatorsLocked18 min
Custom Resource DefinitionsLocked16 min
Immutable InfrastructureLocked16 min
Config Drift PreventionLocked16 min
Desired State ConfigurationLocked16 min
Container SecurityLocked18 min

messaging-event-systems41 lessons

PollingLocked12 min
Long PollingLocked14 min
WebhooksLocked16 min
Push NotificationsLocked14 min
Message QueuesLocked20 min
Pub/Sub PatternLocked22 min
WebSocketsLocked22 min
Server-Sent Events (SSE)Locked16 min
Event BusLocked16 min
Command BusLocked14 min
Request-Response PatternLocked14 min
Request-Reply PatternLocked14 min
Fire-and-Forget PatternLocked14 min
At-Most-Once DeliveryLocked16 min
At-Least-Once DeliveryLocked18 min
Message OrderingLocked18 min
Message ExpirationLocked16 min
Message FiltersLocked16 min
Priority QueueLocked18 min
Delayed QueueLocked18 min
Dead Letter QueueLocked20 min
Poison Message HandlingLocked20 min
Message DeduplicationLocked20 min
Idempotent ConsumerLocked20 min
Competing ConsumersLocked20 min
Fan-Out/Fan-InLocked20 min
Scatter-GatherLocked18 min
Content-Based RoutingLocked18 min
Dynamic RouterLocked18 min
Splitter PatternLocked18 min
Aggregator PatternLocked14 min
Event-Driven ArchitectureLocked28 min
Exactly-Once DeliveryLocked22 min
Transactional Outbox PatternLocked22 min
Inbox PatternLocked18 min
ResequencerLocked15 min
Process ManagerLocked18 min
Routing SlipLocked15 min
Claim Check PatternLocked13 min
Normalizer PatternLocked13 min
Canonical Data ModelLocked15 min

microservices-architecture36 lessons

Monolithic ArchitectureLocked20 min
Singleton PatternLocked15 min
Factory PatternLocked15 min
Observer PatternLocked18 min
Strategy PatternLocked15 min
Adapter PatternLocked15 min
Proxy PatternLocked18 min
Decorator PatternLocked18 min
Facade PatternLocked18 min
Command PatternLocked20 min
Chain of ResponsibilityLocked20 min
Mediator PatternLocked20 min
Repository PatternLocked18 min
Aggregate PatternLocked20 min
Service-Oriented Architecture (SOA)Locked20 min
Microservices ArchitectureLocked45 min
Service DiscoveryLocked20 min
Retry LogicLocked18 min
Exponential BackoffLocked14 min
JitterLocked14 min
Graceful DegradationLocked16 min
Back PressureLocked18 min
Circuit Breaker PatternLocked35 min
Bulkhead PatternLocked18 min
Domain-Driven Design (DDD)Locked40 min
Bounded ContextLocked25 min
Database per ServiceLocked22 min
Shared Database PatternLocked20 min
Service Mesh. ConceptsLocked25 min
Service Mesh. ImplementationLocked22 min
Sidecar Container PatternLocked18 min
Ambassador Container PatternLocked15 min
Adapter Container PatternLocked16 min
Strangler Fig PatternLocked22 min
Anti-Corruption LayerLocked20 min
Choreography vs. OrchestrationLocked30 min

observability-monitoring60 lessons

Log LevelsLocked12 min
AlertingLocked12 min
Uptime MonitoringLocked12 min
Downtime TrackingLocked12 min
Availability MetricsLocked14 min
Metrics CollectionLocked14 min
Log AggregationLocked14 min
Centralized LoggingLocked15 min
Structured LoggingLocked14 min
Log ManagementLocked13 min
Counter MetricsLocked14 min
Gauge MetricsLocked13 min
Time-Series MetricsLocked15 min
Request IDsLocked13 min
Correlation IDsLocked13 min
Infrastructure MonitoringLocked15 min
Network MonitoringLocked14 min
Database MonitoringLocked16 min
SLI (Service Level Indicators)Locked13 min
SLO (Service Level Objectives)Locked15 min
SLA (Service Level Agreements)Locked15 min
SLA/SLO/SLI OverviewLocked15 min
MTTD (Mean Time to Detect)Locked14 min
MTTA (Mean Time to Acknowledge)Locked14 min
MTTR (Mean Time to Resolve)Locked13 min
MTBF (Mean Time Between Failures)Locked14 min
Error BudgetLocked17 min
Histogram MetricsLocked13 min
Summary MetricsLocked12 min
PercentilesLocked12 min
Metrics AggregationLocked16 min
Observability OverviewLocked15 min
APM (Application Performance Monitoring)Locked20 min
RUM (Real User Monitoring)Locked16 min
Synthetic MonitoringLocked12 min
Trace IDsLocked16 min
Span IDsLocked12 min
Distributed Context PropagationLocked17 min
BaggageLocked16 min
Distributed TracingLocked25 min
Apdex ScoreLocked10 min
Golden SignalsLocked16 min
RED MethodLocked12 min
USE MethodLocked12 min
Four Golden SignalsLocked12 min
OpenTelemetryLocked18 min
PrometheusLocked14 min
GrafanaLocked12 min
JaegerLocked12 min
ZipkinLocked10 min
DatadogLocked12 min
New RelicLocked10 min
AppDynamicsLocked10 min
DynatraceLocked10 min
SplunkLocked12 min
ELK StackLocked14 min
FluentdLocked10 min
VectorLocked10 min
TelegrafLocked10 min
StatsDLocked10 min

security-architecture57 lessons

AuthenticationLocked18 min
AuthorizationLocked18 min
Encryption at RestLocked18 min
Encryption in TransitLocked18 min
Security HeadersLocked18 min
Input SanitizationLocked18 min
SQL InjectionLocked20 min
XSSLocked20 min
CSRFLocked18 min
Parameterized QueriesLocked16 min
Prepared StatementsLocked18 min
Secure CodingLocked22 min
Cookie-Based SessionsLocked18 min
Token-Based AuthenticationLocked20 min
JSON Web Tokens (JWT)Locked25 min
JWT SessionsLocked22 min
API KeysLocked18 min
OAuth 2.0Locked28 min
Single Sign-On (SSO)Locked18 min
Multi-Factor Authentication (MFA)Locked18 min
Distributed Session ManagementLocked20 min
Role-Based Access Control (RBAC)Locked18 min
Access Control Lists (ACL)Locked16 min
Permission InheritanceLocked16 min
Attribute-Based Access Control (ABAC)Locked18 min
Policy-Based Access ControlLocked18 min
Time-Based Access ControlLocked16 min
Location-Based Access ControlLocked16 min
Context-Aware Access ControlLocked18 min
Principle of Least PrivilegeLocked18 min
Separation of DutiesLocked18 min
Transport Layer Security (TLS)Locked18 min
SSL/TLS CertificatesLocked18 min
Certificate ManagementLocked18 min
Biometric AuthenticationLocked16 min
Certificate-Based AuthenticationLocked16 min
Mutual TLS (mTLS)Locked18 min
Service-to-Service AuthenticationLocked18 min
Identity FederationLocked18 min
SAMLLocked18 min
OpenID ConnectLocked18 min
Defense in DepthLocked16 min
Security by DesignLocked16 min
Threat ModelingLocked18 min
Attack Surface ReductionLocked18 min
Zero Trust ArchitectureLocked22 min
DDoS ProtectionLocked20 min
Web Application Firewall (WAF)Locked18 min
API Gateway SecurityLocked18 min
Certificate PinningLocked16 min
Public Key Infrastructure (PKI)Locked22 min
Key Management Service (KMS)Locked18 min
Hardware Security Module (HSM)Locked18 min
Secrets ManagementLocked18 min
Vault SystemsLocked20 min
Security Audit LoggingLocked18 min
Incident ResponseLocked22 min

web-content-delivery31 lessons

Browser StorageLocked18 min
Web Storage APILocked16 min
Static Asset OptimizationLocked20 min
Gzip CompressionLocked16 min
Image OptimizationLocked20 min
Lazy LoadingLocked16 min
Responsive ImagesLocked18 min
Image FormatsLocked18 min
Brotli CompressionLocked16 min
Content EncodingLocked16 min
Progressive ImagesLocked16 min
Thumbnail GenerationLocked15 min
Client-Side Rendering (CSR)Locked18 min
Server-Side Rendering (SSR)Locked20 min
Static Site Generation (SSG)Locked18 min
Dynamic Content DeliveryLocked18 min
Asset PipelineLocked20 min
IndexedDBLocked18 min
Service WorkersLocked22 min
Progressive Web Apps (PWA)Locked20 min
Offline-First ArchitectureLocked22 min
Online-First ArchitectureLocked18 min
Sync MechanismsLocked22 min
Video EncodingLocked20 min
Audio EncodingLocked15 min
TranscodingLocked20 min
Incremental Static Regeneration (ISR)Locked18 min
Edge-Side Includes (ESI)Locked16 min
Streaming ProtocolsLocked22 min
Adaptive Bitrate StreamingLocked20 min
Media Processing PipelineLocked25 min