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| Header | explain | example |
|---|---|---|
| Accept | Specifies the type of content the client side can receive | Accepted: text/plain, text/html |
| Accept-Charset | The set of character encodings accepted by the browser. | Accept-Charset: iso-8859-5 |
| Accept-Encoding | Specifies the type of content compression encoding that web servers can support. | Accept-Encoding: compressed, gzip |
| Accept-Language | Languages accepted by browsers | Accept-Language: en, zh |
| Accept-Ranges | You can request one or more subscope fields of a web page entity | Accept-Ranges: bytes |
| Authorization | Authorization certificate for HTTP authorization | Authorization: Authorization certificate |
| Cache-Control | Specify the caching mechanism that requests and responses follow | Cache-Control: no-cache |
| Connection | ຂະໜານວ່າມັນຕ້ອງການການເຊື່ອມຕໍ່ສະເພາະ. (HTTP 1.1 defaults to persistent connections) | Connection: closed |
| Cookie | ເມື່ອສົ່ງການຮ້ອງຂໍ HTTP, ທຸກຄວາມຂອງເຄື່ອງມັນຄຸມເຄື່ອງມັນໃນເຂດຮ້ອງຂໍທີ່ບັນທຶກໄວ້ຖືກສົ່ງໄປຫາສູນບໍລິການເວັບໄຊຮ່ວມນຳກັນ. | Cookies: $Version = 1; Skin = new; |
| ຂັ້ນຕົວ-Length | ຄວາມຍາວຂອງຂໍ້ມູນທີ່ຮ້ອງຂໍ | ຂັ້ນຕົວ-Length: 348 |
| ຂັ້ນຕົວ-Type | The requested MIME information corresponding to the entity | ຂັ້ນຕົວ-Type: application/x-www-form-urlencoded |
| Date | The date and time the request was sent | Date: Tue, 15 Nov 2010 08:12:31 GMT |
| Expect | The specific server behavior requested | Expected: 100-continue |
| From | Email of the requesting user | From: [email protected] |
| Host | Specify the domain name and port number of the requesting server | Host: www.webmastertoolbag.com |
| If-Match | Valid only if the request content matches the entity | If-Match: "Specific Value" |
| If-Modified-Since | If the part of the request is modified after the specified time, the request is successful, and if it is not modified, a 304 code is returned. | If-Modified-Since: Sat, 29 Oct 2010 19:43:31 GMT |
| If-One-Match | If the content has not changed, return 304 code, the parameter is the Etag previously sent by the server, and compare it with the Etag responded by the server to determine whether it has changed. | If-One-Match: "Specific Value" |
| if-Range | If the entity has not changed, the server sends the missing part of the client side, otherwise the entire entity is sent. The parameter is also Etag | If-Range: "Specific Value" |
| If-Unmodified-Since | The request is successful only if the entity has not been modified after the specified time | If-Unmodified-Since: Sat, 29 Oct 2010 19:43:31 GMT |
| Max-Forwards | Limit the time for information to pass through proxies and gateways | Max-Forwards: 10 |
| Pragma | Used to contain implementation-specific instructions | Pragma: no-cache |
| Proxy-Authorization | Authorization certificate to connect to the broker | Proxy-Authorization: The authorization certificate linked to the proxy |
| Range | Request only part of the entity, specifying the scope | Range: bytes = 500-999 |
| Referer | The address of the previous page, followed by the current requested page, i.e. the path | Referer: http://www.webmastertoolbag.com |
| TE | The client side is willing to accept the transmission code, and notifies the server to accept the trailing header information | TE: trailers, deflate; q = 0.5 |
| Upgrade | Specify a transport protocol to the server for the server to convert (if supported). | Upgrade: HTTP/2.0, SHTTP/1.3, IRC/6.9, RTA/x11 |
| User-ຜູ້ບໍລິຫານ | The content of the User-Agent contains information about the user who made the request | User-Agent: Mozilla/5.0 (Linux; X11) |
| Via | Notify the intermediary gateway or proxy server address, communication protocol | Via: 1.0 fred, 1.1 nowhere.com (Apache/1.1) |
| Warning | Warning messages about message entities | Warning: 199 Miscellaneous warnings |
| Header | explain | example |
|---|---|---|
| Accept-Ranges | Indicates whether the server supports specified range requests and what type of segmentation requests | Accept-Ranges: bytes |
| Age | Estimated time from origin server to proxy cache formation (in seconds, non-negative) | Age: 12 |
| Allow | A valid request for a network resource 405 if not allowed. | Allowed: GET, HEAD |
| Cache-Control | Tell all caching mechanisms whether they can be cached and what type | Cache-Control: no-cache |
| ຂັ້ນຕົວ-Encoding | Return content compression encoding types supported by the web server. | ຂັ້ນຕົວ-Encoding: gzip |
| ຂັ້ນຕົວ-Language | Responsive language | ຂັ້ນຕົວ-Language: en, zh |
| ຂັ້ນຕົວ-Length | The length of the response body | ຂັ້ນຕົວ-Length: 348 |
| ຂັ້ນຕົວ-Location | Request another alternative address for the resource | ຂັ້ນຕົວ-Location: /index.htm |
| ຂັ້ນຕົວ-MD5 | Returns the MD5 checksum of the resource | ຂັ້ນຕົວ-MD5: MD5 checksum |
| ຂັ້ນຕົວ-Range | The byte position of this section in the entire return body | ຂັ້ນຕົວ-Range: bytes 21010-47021/47022 |
| ຂັ້ນຕົວ-Type | The MIME type of the returned content | ຂັ້ນຕົວ-Type: text/html; charset = utf-8 |
| Date | The time when the original server message was sent | Date: Tue, 15 Nov 2010 08:12:31 GMT |
| ETag | The current value of the entity label of the request variable | ETag: "Request variable entity tag current value" |
| Expires | The date and time the response expires | Expires: Thu, 01 Dec 2010 16:00:00 GMT |
| Last-Modified | The last modification time of the requested resource | Last-Modified: Tue, 15 Nov 2010 12:45:26 GMT |
| Location | Used to redirect the recipient to a non-request URL location to complete the request or identify a new resource | Location: http://www.webmastertoolbag.com |
| Pragma | Includes implementation-ຄຳສັ່ງທີ່ສາມາດນຳໃຊ້ໃຫ້ຜູ້ຮັບໃດໜຶ່ງໃນການຕອບສະໜອງ | Pragma: no-cache |
| Proxy-Authenticate | ສະແດງວ່າຂັນພິມສິ່ງຄວາມສັນລະມານ ແລະພວກຂອງສິ່ງຄວາມສັນລະມານທີ່ສາມາດນຳໃຊ້ໃນສະຖານນີທີ່ຕ້ອງການຂອງສະຖານນີຕໍ່ຕ້ານ | Proxy-Authenticate: Basic |
| Refresh | ນຳໃຊ້ສຳລັບການຂັບລາງຫຼືຂະບວນທີ່ຈະສ້າງຂຶ້ນໃໝ່ ແລະຫຼັງຈາກຂັບລາງ 5 ວັນຂອງ (ສະເໜີໂດຍ Netscape ແລະ ສະໜັບສະໜູນໂດຍບັນດາຄົນໃຊ້ບັນນາວັນຫຼາຍ) |
Refresh: 5; url = http://www.webmastertoolbag.com
|
| Retry-After | If the entity is temporarily undesirable, notify the client side to try again after the specified time | Retry-After: 120 |
| Server | Web server software name | Server: Apache/1.3.27 (Unix) (Red-Hat/Linux) |
| Set-Cookie | Setting HTTP Cookies | Set-Cookie: UserID = JohnDoe; Max-Age = 3600; Version = 1 |
| Trailer | Indicates that the header field exists at the tail of the chunked transfer code | Trailer: Max-Forwards |
| Transfer-Encoding | file transfer encoding | Transfer-Encoding: chunked |
| Vary | Tell downstream proxies whether to use cached responses or request from the origin server | Vary: * |
| Via | Tell the client side where the response was sent | Via: 1.0 fred, 1.1 nowhere.com (Apache/1.1) |
| Warning | Warning entities of possible problems | Warnings: 199 Miscellaneous warnings |
| WWW-Authenticate | Indicates the authorization scheme that the client side requesting entity should use | WWW-Authenticate: Basic |
ຫົວຂໍ້ສຳນັກງານ HTTP ຂໍ້ມູນຂອງຄຳຂໍ, ຄຳຕອບ, ແລະ ອຸປະກອນສົ່ງຂໍ້ມູນອື່ນໆ. ຂໍ້ມູນຫົວຂໍ້ HTTP ລວມມີ ສີ່ສ່ວນ: ຫົວຂໍ້ລັດຖະບານ, ຫົວຂໍ້ຄຳຂໍ, ຫົວຂໍ້ຄຳຕອບ, ແລະ ຫົວຂໍ້ປະເພດ
ແຕ່ລະຫົວຂໍ້ຫົວຂໍ້ບັນຊີ ປະກອບມີຊື່ເຂດ, ວຽງ (:), ແລະ ຄວາມທີ່ຂອງເຂດ
ຫົວຂໍ້ທົດສະຫຼະ: ສາມາດນຳໃຊ້ເພື່ອຂໍ້ມູນຂໍ້ມູນ ແລະ ຄຳຕອບ, ແລະ ກ່ຽວຂ້ອງກັບການບໍລິຫານຄັ້ງທີ່ຈະຮອດທັງໝົດ ຈະກ່ຽວຂ້ອງກັບວັດຖຸສະເພາະ
ຫົວຂໍ້ຂອງຄຳຂໍ: ອະນຸຍາດໃຫ້ຄົນທີ່ນຳໃຊ້ທີ່ຢູ່ທາງຄົນທີ່ບຸກຄົນ ປະກອບຂໍ້ມູນຂອງຕົວເອງ ແລະ ຮູບແບບຄຳຕອບທີ່ຕ້ອງການ
ຫົວຂໍ້ຂອງຄຳຕອບ: ຜະລິດຕະພັນ ແລະ ຄຳຕອບ ທີ່ນຳໃຊ້ເພື່ອການສື່ສານຂໍ້ມູນຂອງຕົວກັບຕົວອອກຄຳຕອບ
ຫົວຂໍ້ຂອງປະເພດ: ຂໍ້ມູນທີ່ກຳນົດຄວາມທີ່ຈະສົ່ງ, ທີ່ສາມາດນຳໃຊ້ເພື່ອຂໍ້ມູນຂໍ້ມູນ ແລະ ຄຳຕອບ
