Where do these definitions come from?

From the IANA HTTP Status Code Registry and the relevant RFCs (notably RFC 9110).

/ref local tool

HTTP Status Codes

Filter a color-coded reference of 1xx through 5xx responses.

Local execution receiptinput path disclosedTool content stays out of MonoTools URLs and API requests.

Working input: Browser memory
Cross-tool handoff: Session only · 10 min
URL payload: Never
Export: Explicit action

Verify it: open DevTools Network, clear the log, use the tool, then inspect fetch/XHR requests. Page assets and optional aggregate analytics may use the network; tool input is not included.

Full privacy model

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How to use

01Search by code, name or task such as rate limit, async job or upstream timeout.
02Select a result to copy its code and review retry and cache behavior.

FAQ

Where do these definitions come from?: From the IANA HTTP Status Code Registry and the relevant RFCs (notably RFC 9110).

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