HttpKnownHeaderNames

Provides most of the most commonly known HTTP headers for constants.

public static class HttpKnownHeaderNames

Inheritance #

object ← HttpKnownHeaderNames

Inherited Members #

object.GetType(), object.MemberwiseClone(), object.ToString(), object.Equals(object?), object.Equals(object?, object?), object.ReferenceEquals(object?, object?), object.GetHashCode()

Fields #

Name	Description
Accept	The HTTP Accept header. Specifies the media types that are acceptable for the response, allowing the client to indicate its preferences.
AcceptCH	The HTTP Accept-CH header. Specifies the client hints that the server supports, allowing clients to provide additional information about their capabilities.
AcceptCharset	The HTTP Accept-Charset header. Indicates the character sets that are acceptable for the response, allowing the client to specify its preferred encoding.
AcceptEncoding	The HTTP Accept-Encoding header. Specifies the content encodings that are acceptable for the response, allowing the client to indicate its preferences for compression.
AcceptLanguage	The HTTP Accept-Language header. Indicates the natural languages that are preferred for the response, allowing the client to specify its language preferences.
AcceptPatch	The HTTP Accept-Patch header. Indicates the patch document formats that are acceptable for the response, allowing the client to specify its preferences for patching resources.
AcceptPost	The HTTP Accept-Post header. Specifies which media types are accepted by the server in a POST request.
AcceptQuery	The HTTP Accept-Query header. Specifies which media types are accepted by the server in a QUERY request.
AcceptRanges	The HTTP Accept-Ranges header. Indicates that the server supports range requests for the resource, allowing clients to request specific byte ranges.
AccessControlAllowCredentials	The HTTP Access-Control-Allow-Credentials header. Indicates whether the response to the request can expose credentials, allowing cross-origin requests to include credentials.
AccessControlAllowHeaders	The HTTP Access-Control-Allow-Headers header. Specifies which headers can be used when making the actual request in a cross-origin resource sharing (CORS) context.
AccessControlAllowMethods	The HTTP Access-Control-Allow-Methods header. Specifies the methods that are allowed when accessing the resource in a CORS context.
AccessControlAllowOrigin	The HTTP Access-Control-Allow-Origin header. Specifies which origins are allowed to access the resource in a CORS context, helping to control cross-origin requests.
AccessControlExposeHeaders	The HTTP Access-Control-Expose-Headers header. Indicates which headers can be exposed as part of the response to a cross-origin request.
AccessControlMaxAge	The HTTP Access-Control-Max-Age header. Specifies how long the results of a preflight request can be cached, reducing the number of preflight requests made.
AccessControlRequestHeaders	The HTTP Access-Control-Request-Headers header.
AccessControlRequestMethod	The HTTP Access-Control-Request-Method header.
Age	The HTTP Age header. Indicates the age of the object in a cache, helping clients understand how fresh the cached response is.
Allow	The HTTP Allow header. Lists the HTTP methods that are supported by the resource, informing clients about the available actions.
AltSvc	The HTTP Alt-Svc header. Indicates that an alternative service is available for the resource, allowing clients to connect to a different server or protocol.
Authorization	The HTTP Authorization header. Contains credentials for authenticating the client with the server, often used for basic or bearer token authentication.
CacheControl	The HTTP Cache-Control header. Directs caching mechanisms on how to cache the response, including directives for expiration and revalidation.
Connection	The HTTP Connection header. Controls whether the network connection stays open after the current transaction finishes, allowing for persistent connections.
ContentDisposition	The HTTP Content-Disposition header. Indicates if the content should be displayed inline in the browser or treated as an attachment to be downloaded.
ContentEncoding	The HTTP Content-Encoding header. Specifies the encoding transformations that have been applied to the response body, such as gzip or deflate.
ContentLanguage	The HTTP Content-Language header. Indicates the natural language(s) of the intended audience for the response, helping clients understand the content’s language.
ContentLength	The HTTP Content-Length header. Indicates the size of the response body in bytes, allowing the client to know how much data to expect.
ContentLocation	The HTTP Content-Location header. Indicates an alternate location for the returned data, often used for redirecting clients to a different resource.
ContentMD5	The HTTP Content-MD5 header. Contains the MD5 hash of the response body, allowing clients to verify the integrity of the received data.
ContentRange	The HTTP Content-Range header. Indicates the part of a document that the server is returning, used in range requests to specify byte ranges.
ContentSecurityPolicy	The HTTP Content-Security-Policy header. Defines security policies for the content, helping to prevent cross-site scripting (XSS) and other code injection attacks.
ContentType	The HTTP Content-Type header. Indicates the media type of the resource, allowing the client to understand how to process the response body.
Cookie	The HTTP Cookie header. Contains stored HTTP cookies previously sent by the server, allowing the server to identify the client on subsequent requests.
Cookie2	The HTTP Cookie2 header. Used to send cookies in a more advanced format, primarily for compatibility with older versions of HTTP.
Date	The HTTP Date header. Indicates the date and time at which the message was sent, helping clients understand the freshness of the response.
Dnt	The HTTP DNT header. The HTTP DNT (Do Not Track) request header indicates the user’s tracking preference.
ETag	The HTTP ETag header. Provides a unique identifier for a specific version of a resource, allowing clients to cache and validate resources efficiently.
Expect	The HTTP Expect header. Indicates that the client expects certain behaviors from the server, such as support for specific features or conditions.
Expires	The HTTP Expires header. Indicates the date and time after which the response is considered stale, helping clients manage caching.
Host	The HTTP Host header. Specifies the domain name of the server and the TCP port number on which the server is listening, allowing for virtual hosting.
IfMatch	The HTTP If-Match header. Used to make a conditional request, allowing the client to specify that the request should only be processed if the resource matches the given ETag.
IfModifiedSince	The HTTP If-Modified-Since header. Used to make a conditional request, allowing the client to specify that the resource should only be returned if it has been modified since the given date.
IfNoneMatch	The HTTP If-None-Match header. Used to make a conditional request, allowing the client to specify that the resource should only be returned if it does not match the given ETag.
IfRange	The HTTP If-Range header. Used to make a conditional range request, allowing the client to specify that the range should only be returned if the resource has not changed.
IfUnmodifiedSince	The HTTP If-Unmodified-Since header. Used to make a conditional request, allowing the client to specify that the resource should only be returned if it has not been modified since the given date.
KeepAlive	The HTTP Keep-Alive header. Used to specify parameters for persistent connections, allowing the client and server to maintain an open connection for multiple requests.
LastModified	The HTTP Last-Modified header. Indicates the date and time at which the resource was last modified, helping clients determine if they need to refresh their cached version.
Link	The HTTP Link header. Used to provide relationships between the current resource and other resources, often used for navigation and linking.
Location	The HTTP Location header. Used in redirection responses to indicate the URL to which the client should redirect.
MaxForwards	The HTTP Max-Forwards header. Used in OPTIONS requests to limit the number of times the request can be forwarded by proxies.
Origin	The HTTP Origin header. Indicates the origin of the request, helping servers implement CORS and manage cross-origin requests.
P3P	The HTTP P3P header. Used to indicate the privacy policy of the server, allowing clients to understand how their data will be handled.
Pragma	The HTTP Pragma header. Used to include implementation-specific directives that might apply to any recipient along the request/response chain.
ProxyAuthenticate	The HTTP Proxy-Authenticate header. Used by a proxy server to request authentication from the client, indicating the authentication method required.
ProxyAuthorization	The HTTP Proxy-Authorization header. Contains credentials for authenticating the client with a proxy server, allowing access to the requested resource.
ProxyConnection	The HTTP Proxy-Connection header. Used to control whether the network connection to the proxy server should be kept open after the current transaction.
PublicKeyPins	The HTTP Public-Key-Pins header. Used to prevent man-in-the-middle attacks by specifying which public keys are valid for the server’s certificate.
Range	The HTTP Range header. Used to request a specific range of bytes from a resource, allowing clients to download large files in parts.
Referer	The HTTP Referer header. Indicates the URL of the resource from which the request originated, helping servers understand the source of traffic.
RetryAfter	The HTTP Retry-After header. Indicates how long the client should wait before making a follow-up request, often used in rate limiting scenarios.
SecGPC	The HTTP Sec-GPC header. The HTTP Sec-GPC request header is part of the Global Privacy Control (GPC) mechanism to indicate whether the user consents to a website or service selling or sharing their personal information with third parties.
SecWebSocketAccept	The HTTP Sec-WebSocket-Accept header. Used in the WebSocket handshake to confirm the server’s acceptance of the connection request.
SecWebSocketExtensions	The HTTP Sec-WebSocket-Extensions header. Used to negotiate WebSocket extensions during the handshake, allowing for additional features and capabilities.
SecWebSocketKey	The HTTP Sec-WebSocket-Key header. Contains a base64-encoded value used to establish a WebSocket connection, ensuring the request is valid.
SecWebSocketProtocol	The HTTP Sec-WebSocket-Protocol header. Used to specify subprotocols that the client wishes to use during the WebSocket connection.
SecWebSocketVersion	The HTTP Sec-WebSocket-Version header. Indicates the version of the WebSocket protocol that the client wishes to use.
Server	The HTTP Server header. Contains information about the server software handling the request, often used for informational purposes.
SetCookie	The HTTP Set-Cookie header. Used to send cookies from the server to the client, allowing the server to store state information on the client.
SetCookie2	The HTTP Set-Cookie2 header. Used to send cookies in a more advanced format, primarily for compatibility with older versions of HTTP.
StrictTransportSecurity	The HTTP Strict-Transport-Security header. Enforces secure (HTTPS) connections to the server, helping to prevent man-in-the-middle attacks.
TE	The HTTP TE header. Indicates the transfer encodings that are acceptable for the response, allowing for content negotiation.
TSV	The HTTP TSV header. Used to indicate the type of data being sent in a transaction, often used in specific applications or protocols.
Trailer	The HTTP Trailer header. Indicates that the sender will include additional fields in the message trailer, which can be used for metadata.
TransferEncoding	The HTTP Transfer-Encoding header. Specifies the form of encoding used to safely transfer the payload body to the user.
Upgrade	The HTTP Upgrade header. Indicates that the client prefers to upgrade to a different protocol, such as switching from HTTP/1.1 to HTTP/2.
UpgradeInsecureRequests	The HTTP Upgrade-Insecure-Requests header. Indicates that the client prefers to receive an upgraded version of the resource over HTTPS instead of HTTP.
UserAgent	The HTTP User-Agent header. Contains information about the user agent (browser or application) making the request, including its version and platform.
Vary	The HTTP Vary header. Indicates that the response varies based on the value of the specified request headers, allowing for content negotiation.
Via	The HTTP Via header. Used to track message forwards and proxies, indicating the intermediate protocols and recipients involved in the request/response chain.
WWWAuthenticate	The HTTP WWW-Authenticate header. Used in response to a request for authentication, indicating the authentication method that should be used to access the resource.
Warning	The HTTP Warning header. Provides additional information about the status or transformation of a message, often used for caching and validation.
XContentDuration	The HTTP X-Content-Duration header. Specifies the duration of the content in seconds, often used for media files.
XContentTypeOptions	The HTTP X-Content-Type-Options header. Used to prevent MIME type sniffing, ensuring that the browser respects the declared content type.
XForwardedFor	The HTTP X-Forwarded-For header. Used to identify the originating IP address of a client connecting to a web server through an HTTP proxy or load balancer.
XForwardedHost	The HTTP X-Forwarded-Host header. Used to identify the original host requested by the client in the Host HTTP request header, often used in proxy setups.
XFrameOptions	The HTTP X-Frame-Options header. Used to control whether a browser should be allowed to render a page in a iframe, frame, embed or object tag, helping to prevent clickjacking attacks.
XPoweredBy	The HTTP X-Powered-By header. Indicates the technology or framework that powers the web application, often used for informational purposes.
XRequestID	The HTTP X-Request-ID header. Used to uniquely identify a request for tracking and debugging purposes, often generated by the client or server.
XUACompatible	The HTTP X-UA-Compatible header. Used to specify the document mode that Internet Explorer should use to render the page, helping to ensure compatibility with older versions.