The independent, practitioner-built reference for WebSocket technology. Protocol internals, production patterns, scaling guides, and honest protocol comparisons with real code.
Resources
From HTTP upgrade to binary frames — the complete picture.
Hands-on guides from first connection to production scale.
Not everything needs a WebSocket. Pick the right tool.
Real-world patterns for common WebSocket applications.
Explore the full guide library — implementation patterns, framework integrations, and more.
Browse all guidesInteractive Tools
Test WebSocket connections in real time. Send messages and see them echoed back instantly — no signup, no setup.
Try it nowAnswer a few questions about your use case and get a protocol recommendation.
Find your protocolHow it works
One request, one response. Connection closes. Every interaction has overhead.
Server streams to client only. Great for push — can't send back.
Full-duplex, persistent. Both sides send whenever they want.
Used to describe an action that happened before another action in the past (e.g., "When they had done their homework, they played computer games").
Practice forming abstract nouns using suffixes like -ness (happiness, weakness), -ship (friendship, leadership), and -dom (freedom, boredom). gateway b1 2nd edition unit 8 test
The primary focus of Unit 8 is sequencing events in the past and managing reported speech. Used to describe an action that happened before
Vocabulary in this unit centers on how we interact with others and how we express abstract concepts. Vocabulary in this unit centers on how we
Understanding how to shift tenses and change word order when reporting what someone else asked. For example, "Why do you think...?" becomes "They asked him why he thought...".
Preparing for the requires a solid grasp of specific grammar rules, such as the past perfect, and a specialized vocabulary related to human relationships and abstract nouns. This guide breaks down the core components you'll encounter on the exam to help you study effectively. Core Grammar Topics
Focus on phrasal verbs and idioms like get on well with , fall out with , make it up , and having things in common .