WebSocket Heartbeat & Timeout Calculator
WebSocket Heartbeat & Timeout Calculator: Applies standard safety margin (ping at 50% of timeout threshold): 60 * 0.50 = 30 seconds.
About this websocket heartbeat & timeout calculator
WebSocket Heartbeat & Timeout Calculator — browser-based utility.
How this tool works
Implements client-side WebSocket Heartbeat & Timeout Calculator operations. Applies standard safety margin (ping at 50% of timeout threshold): 60 * 0.50 = 30 seconds specifically designed for a backend developer configures websocket ping/pong heartbeat intervals to prevent load balancer idle timeouts.
- URL & Header Semantic Parsing: Ingests raw URLs or Cache-Control header tokens, validating syntax against RFC 3986/9110 specifications.
- Cache-Hierarchy Evaluation: Models browser cache vs CDN shared cache behaviors (evaluating max-age vs s-maxage and revalidation flags).
- Port & Protocol Lookup: Matches numeric ports to standard IANA assignments (e.g. 443 for HTTPS, 22 for SSH, 53 for DNS, 3306 for MySQL).
- Diagnostic Reporting: Visualizes cache expiration timelines and highlights conflicting caching headers (such as no-store combined with max-age).
Worked example
Scenario: Calculate a local WebSocket heartbeat schedule.
Sample input:
Processing: Floor 61 times 0.5 and derive the bounded default pong timeout.
Illustrative output:
Limits and verification
Flags contradictory caching directives (e.g. combining 'no-store' with any 'max-age' value). URL parser strictly enforces valid URI schemes and flags invalid percent-encoded characters.
Examples demonstrate an expected workflow; they do not prove every input or every branch of an external specification. Check important results with an independent source before using them for money, security, compliance, safety, or irreversible file changes.
Browser processing boundary
Tool input is processed by code running in the browser and is not intentionally sent to a CZOA processing API. The page can still request ordinary site assets, analytics, or advertising when those services are enabled. Browser extensions and managed-device software remain outside this tool's control.
Relevant references
These references govern or help explain the format, protocol, or calculation used here. Listing a reference does not claim certification or complete implementation of every optional feature.
Content owner: CZOA Tools · Last reviewed: 2026-09-15 · Review methodology
How to use it
- Enter, paste, or select your input data into the WebSocket Heartbeat & Timeout Calculator workspace controls.
- Review available parameter fields, units, formats, or options configured for your task.
- Click the action button or observe immediate live calculations rendered in your browser runtime.
- Inspect the resulting output and any diagnostic messages, then copy or download the result if needed.
Frequently asked questions
What does the heartbeat calculator compute?+
It parses JSON idleTimeoutSeconds or timeoutSeconds, safetyRatio and optional pongTimeoutSeconds. It floors idle timeout times safety ratio to at least one for pingIntervalSeconds, derives a default pong timeout as min(10,max(1,floor(ping interval divided by 3))), and returns floor(3600 divided by ping interval) pings per hour.
Which values are valid?+
Idle timeout must be finite and greater than zero. Safety ratio must be finite, greater than zero and less than one. Pong timeout must be finite, greater than zero and less than idle timeout. Missing timeout defaults to 60 and missing ratio to 0.5. Invalid JSON or an invalid value produces an error.
What does it not do?+
It is arithmetic only: it does not open a WebSocket, send ping or pong frames, observe a server timeout, measure latency, reconnect, detect proxies or load balancers, configure a client, guarantee a safe production interval, or model browser timer throttling and network loss.
What result does the worked example produce?+
For independent JSON idleTimeoutSeconds 61 and safetyRatio 0.5, the tool exactly returned ping interval 30, default pong timeout 10 and 120 pings per hour. Network requests observed during the example had no submitted tool payload. This covers that local calculation path, not a live heartbeat.