HTTP headers | Tk Last Updated : 11 May, 2020 Comments Improve Suggest changes Like Article Like Report The HTTP Tk header is a response-type header it is used to indicates the tracking status that applied to the corresponding request. Syntax: Tk: ! (under construction) Tk: N (not tracking) Tk: T (tracking) Tk: C (tracking with consent) Tk: P (potential consent) Tk: D (disregarding DNT) Tk: U (updated) Tk: ? (dynamic) Tk: G (gateway or multiple parties) Directives: This header accept nine directives as mentioned above and described below: !: Under development. The root server is as of now testing its communication of following status. ?: Dynamic. The root server needs more data to decide following status. G: Gateway or numerous parties. The server is acting as a door to exchange including numerous parties. N: Not tracking. T: Tracking. C: Tracking with consent. The root server accepts it has gotten earlier assent for following this client, client agent, or gadget. P: Potential consent. The root server does not know, in real-time, whether it has gotten earlier consent for following this client, client agent, or gadget, but guarantees not to utilize or share any DNT:1 information until such consent has been decided, and advance guarantees to erase or forever de-identify inside 48 hours any DNT:1 information gotten for which such assent has not been gotten. D: Disregarding DNT. The root server is incapable or unwilling to regard the following inclination gotten from the requesting client agent. U: Updated. The request comes about in a potential alterations to the following status pertinent to this client, client agent, or gadget. Examples A Tk header for a resource that claims not to be following would see like: Tk: N A Tk header for a resource that claims to be following would see like Tk: T Supported Browsers: The compatibility of browsers is unknown until now. Comment More infoAdvertise with us Next Article HTTP headers | Tk V vipinyadav15799 Follow Improve Article Tags : Computer Networks HTTP-headers Similar Reads HTTP Headers | TE The HTTP TE(also known as Accept-Transfer-Encoding) is a request-type header that specifies the transfer encodings that the user is willing to accept. It is very similar to the Transfer-Encoding response header. The difference is that this header uses another directive called trailers which is very 2 min read HTTP headers | Via The HTTP headers Via is used to inform the server of proxies through which the request was sent. The Via general is added by. It tacks the messages forwarded, request loops avoided, and identify the protocol capabilities of the sender. The header type of Via is the General type. Syntax: Via: [ <p 1 min read HTTP headers | Trailer The HTTP Trailer header is a response header that indicates the given set of header fields is present in the trailer of a message encoded with chunked transfer-coding and allows the sender to include additional fields at the end of chunked messages in order to supply metadata. Syntax: Trailer: heade 1 min read HTTP headers | Range HTTP headers are used to pass additional information with HTTP request or response. HTTP range is an HTTP request header that is used to get part of a document from the server. If the server returns the part of the document, it uses the 206 (Partial Content) status code. If ranges are invalid status 2 min read HTTP headers | Server The HTTP Server header is a response-type header that contains the information about the used software by the server to handle all the requests. This header will only a few details of the server like the server name software like sffe, cloudflare etc. Hide all the important information because that 1 min read Like