URL
A Uniform Resource Locator is a string that identifies a resource and specifies how to locate or access it, commonly on the internet.
URI: A Uniform Resource Identifier is a string that identifies a resource by name, location, or both. The broader identifier category includes URLs and other resource identifiers.
DNS: The Domain Name System translates domain names into information such as IP addresses. DNS commonly resolves a URL’s hostname before a browser connects to a server.
URN: A Uniform Resource Name is a persistent identifier intended to name a resource independently of its current location. Unlike a URL, a URN names a resource without specifying how to retrieve it.
Permalink: A URL intended to remain stable over time for a particular web page or resource. Permalinks apply URL design to persistent references in publishing.
URL syntax: The structured arrangement of components in a URL, such as scheme, authority, path, query, and fragment. Its components explain how a URL expresses both destination and access details.
HTTP: The Hypertext Transfer Protocol defines request-and-response communication for transferring web resources. An http URL selects this protocol for requesting a resource.
Hyperlink: A hyperlink is a reference in a document or interface that enables movement to another resource or location. A hyperlink can contain a URL, but it is the clickable reference rather than the address itself.
REST: An architectural style for networked systems that uses resources, representations, and a uniform interface. REST APIs commonly expose resources through URLs.
URI scheme: A prefix that specifies the protocol or interpretation used for a resource identifier, such as https or mailto. The scheme indicates how a URL should be interpreted or accessed.
Web browser: Software that retrieves, interprets, and displays web resources, often in response to URLs. Browsers parse URLs and initiate the corresponding network operations.