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This article lists standard and notable non-standard HTTP response status codes. Standardized codes are defined by IETF as documented in Request for Comments (RFC) publications and maintained by the IANA. Other, non-standard values are used by various servers. The descriptive text after the numeric code – the reason phrase – is shown here with typical…
Standards & Art
Explore the main themes, entities and connections around List of HTTP status codes. Start with the topic map, then use the sections below for research and deeper semantic analysis.
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used request server codes status error response client web http standard code ietf 4xx indicates user entity signal servers non-standard
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| 403 | instance of | If the client receives an error code | 0.80 | text |
| insufficient permissions of the authenticated account | instance of | 403 is returned when the client is not permitted access to the resource despite providing authentication | 0.80 | text |
| search engines should remove the resource from their indices | instance of | Clients | 0.80 | text |
| TLS/1.3 | instance of | 426 Upgrade Required The client should switch to a different protocol | 0.80 | text |
| given in the Upgrade header field | instance of | 426 Upgrade Required The client should switch to a different protocol | 0.80 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.