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What is a URL?

Stands for "Uniform Resource Locator." A URL is the address of a specific webpage or file on the Internet. For example, the URL of the TechTerms website is "http://techterms.com." The address of this page is "http://techterms.com/definition/url" and includes the following elements: http:// – the URL prefix, which specifies the protocol used to access the locationtechterms.com – the server name or IP address of the server/definition/url – the path to the directory or file While all website URLs begin with "http," several other prefixes exist. Below is a list of various URL prefixes: http – a webpage, website directory, or other ... Read more

HTTP headers :: Origin

The Origin HTTP Header is a response HTTP header that indicates the security contexts that initiates an HTTP request without indicating the path information. The Origin header is added by the browser and can not be controlled by the user. Syntax: Origin: <scheme> "://" <hostname> ":" <port> Directives: <scheme>:<hostname>:<port>: Examples: Origin: null This means that there is no origin for the service requested. Origin: https://www.nettoolkit.net This means that the origin if the service requested exists and has https as the scheme and www.geeksforgeeks.org as the hostname. Supported Browsers The following browsers are compatible ... Read more

HTTP headers :: Set-Cookie

The HTTP header Set-Cookie is a response header and used to send cookies from the server to the user agent. So the user agent can send them back to the server later so the server can detect the user. Syntax: Set-Cookie: <cookie-name>=<cookie-value> | Expires=<date> | Max-Age=<non-zero-digit> | Domain=<domain-value> | Path=<path-value> | SameSite=Strict|Lax|none Note: Using multiple directives are also ... Read more

What is a Port?

In the computer world, the term "port" has three different meanings. It may refer to 1) a hardware port, 2) an Internet port number, or 3) the process of porting a software program from one platform to another. 1. Hardware Port A hardware port is a physical connection on a computer or another electronic device. Common ports on modern desktop computers include USB, Thunderbolt, Ethernet, and DisplayPort. Previous generations of computers used different ports, such a serial ports, parallel ports, and VGA ports. Mobile devices often have only one port. For example, an iPhone or iPad may have a single Lightning connector. ... Read more

What are HTTP Headers?

HTTP header fields provide required information about the request or response, or about the object sent in the message body. There are four types of HTTP message headers: General-header: These header fields have general applicability for both request and response messages.Client Request-header: These header fields have applicability only for request messages.Server Response-header: These header fields have applicability only for response messages.Entity-header: These header fields define meta information about the entity-body or, if no body is present, about the resource identified by the request. General Headers Cache-Control The Cache-Control general-header ... Read more
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