StackShade Resources
Learn in the mode that fits the topic.
Courses are structured. The journal is durable. Explainers are intentionally loose: short videos, experiments, visualizations, decks, artifacts, and one-off engineering rabbit holes.
Engineering Blog
Deep, durable articles with mental models, examples, and practical architecture notes.
Read guidesExplainers
A searchable shelf for quick videos, mini-articles, animations, decks, experiments, and topic ideas.
Explore shelfStructured Courses
Topic-by-topic learning paths for DSA, networks, operating systems, system design, Next.js, and DevOps.
Browse coursesInteractive Tools
Use visual simulators and learning tools to connect theory to concrete execution.
Open toolsFeatured guides
Build the mental model first
What Really Happens When You Type a URL?
Browser, DNS, TLS, HTTP, servers, and rendering.
OSI Model Explained
Networking layers, encapsulation, TCP, and troubleshooting.
DNS Resolution Explained
Recursive resolvers, authoritative servers, records, and TTLs.
HTTP/1.1 vs HTTP/2 vs HTTP/3
How modern web transport evolved.
Database Indexes & B-Trees
Query planning, composite indexes, and write tradeoffs.
Redis & Caching
Cache-aside, TTLs, invalidation, and stampedes.
CAP & Consistency
Distributed failures, partitions, and consistency models.
Kafka & Event-Driven Systems
Topics, partitions, offsets, consumers, and replay.