HTTP Headers
Header Name | Description |
---|---|
ALPN | Specifies the protocols to initiate a CONNECT tunnel with. |
Accept | Specifies which response media types are acceptable. |
Accept-Charset | Indicates which character sets are acceptable in responses. |
Accept-Encoding | Specifies which response content codings are acceptable. |
Accept-Language | Specifies the (natural) languages preferred by the user. |
Accept-Patch | Specifies which media types are acceptable to send in a PATCH request. |
Accept-Ranges | Indicates that the resource supports Range requests. |
Age | Indicates response was served from a cache. |
Allow | Lists methods supported by the resource. |
Authorization | Provides credentials authenticating the client to the origin. |
Connection | Lists hop-by-hop headers that must be consumed by the downstream node. |
Content-Encoding | Lists the transformations applied to the message body. |
Content-Language | Indicates the (written) language of the document. |
Content-Length | Specifies the size (bytes) of the attached message body. |
Content-Location | Specifies a URI that the message body is available at. |
Content-Range | Indicates the offset of the returned part from the entire representation. |
Content-Type | Indicates the media type of the document. |
Date | Specifies the date that the origin server generated the response. |
ETag | Specifies an identifier for the selected representation |
Expect | Lists behaviors expected from the server to properly make the request. |
Expires | How long a response may be cached without revalidation. |
Forwarded | Provides connection metadata from upstream nodes. |
From | Supplies contact information for the requesting user. |
Host | Specifies the authority component of the request-URI. |
If-Match | makes filling a request conditional on the resource having one of the specified ETags |
If-Modified-Since | Makes the request conditional on the resource being updated after the provided date. |
If-None-Match | Makes request conditional on target resource having been changed. |
If-Range | Makes the Range header conditional on the document being unmodified since the specified revision. |
If-Unmodified-Since | Makes the request conditional on the resource being unchanged since the provided date. |
Last-Modified | Identifies the date when the representation was last modified |
Link | Attaches a link to the message. |
Location | Refers to another resource, depending on status code |
Max-Forwards | Limits how many intermediate nodes a message can pass through. |
Prefer | Specifies client preferences for the server. |
Preference-Applied | Specifies which preferences were observed, if not otherwise evident by the response. |
Proxy-Authenticate | Requests the user-agent authenticate to an intermediate proxy. |
Proxy-Authorization | Provides credentials authenticating the client to the proxy. |
Range | Specifies a subset of the representation to return in the response, instead of the entire document. |
Referer | Specifies where the request-URI was obtained from. |
Retry-After | Specifies a time to wait before re-trying a request. |
Server | Names the server software name and version generating the origin response. |
TE | Lists transfer codings supported by the user-agent. |
Trailer | Lists headers expected in the chunked encoding's trailer section. |
Transfer-Encoding | Lists transfer encodings used to transmit the message body. |
Upgrade | Request that the server transition to another protocol. |
User-Agent | Names the user agent and version making the request. |
Vary | Lists headers that affect the response. |
Via | Lists upstream nodes that have processed the message. |
WWW-Authenticate | Requests the user-agent authenticate to the origin. |