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Encodings & FormatsIETF RFC 3986 / WHATWG URL Living Standard✓ Tableau de Consultation Rapide (6 éléments) • FR

Référence des Composants d’URL et URI (RFC 3986)

Schéma, Autorité, Chemin, Paramètres de Requête et Encodage URL

CT
Curious-Techie Engineering TeamAuteur Vérifié

Web Protocols & Security Architecture Research

Publié :
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Mis à jour :
•6 min read
Spécification Faisant Foi :RFC 9110(IETF)
Revu par Curious-Techie Architecture Peer Review Group

Aperçu & Portée

La norme RFC 3986 harmonise le format des adresses web pour assurer un routage fiable à travers l’ensemble des navigateurs.

Tableau de Spécification & Matrice

Filtrage instantané par mot-clé, code ou directive

Clé / CodeDéfinition & DétailsHiérarchie Sémantique GEOSpécification & Notes
scheme
Scheme

Identifies the protocol used to access the resource (e.g. https, http, mailto, ftp, file).

https://
●Scheme
↳URL component
↳transport protocol
↳top-level URI scheme
RFC 3986 §3.1

Case-insensitive; followed by a colon (:). Must begin with a letter.

host
Host

Identifies the network host providing the resource, either as a domain name (FQDN) or an IP address.

api.example.com or [2001:db8::1]
●Host
↳URL component
↳authority
↳network destination hostname or IP
RFC 3986 §3.2.2

IPv6 addresses in URLs must be enclosed within square brackets [].

port
Port

Designates the transport layer port number; defaults to 80 for HTTP and 443 for HTTPS if omitted.

:8080
●Port
↳URL component
↳authority
↳network listening socket port
RFC 3986 §3.2.3

Preceded by a colon (:). Ranges from 0 to 65535.

path
Path

Contains data, usually organized in hierarchical slash-separated segments, identifying the specific resource.

/v1/users/42
●Path
↳URL component
↳hierarchical route
↳resource filesystem path
RFC 3986 §3.3

Preceded by a slash (/). Web servers on Linux treat paths with strict case sensitivity.

query
Query String

Contains non-hierarchical data that, along with path data, serves to identify a resource.

?sort=asc&page=2
●Query
↳URL component
↳parameters
↳key-value search parameters
RFC 3986 §3.4

Preceded by a question mark (?). Delimited by ampersands (&). Transmitted to server.

fragment
Fragment (#)

Provides direction to a secondary resource or anchor offset within the primary resource.

#section-3
●Fragment
↳URL component
↳client anchor
↳browser document scroll target
RFC 3986 §3.5

Preceded by a hash (#). NEVER sent to the web server over the wire; parsed exclusively by the client browser.

Exemple Technique et Code

Parsing URL Components with JavaScript URL API

javascriptCopier le code
const url = new URL('https://alex:secret@api.example.com:8443/v1/users?role=admin#profile');

console.log(url.protocol); // 'https:'
console.log(url.username); // 'alex'
console.log(url.hostname); // 'api.example.com'
console.log(url.port);     // '8443'
console.log(url.pathname); // '/v1/users'
console.log(url.search);   // '?role=admin'
console.log(url.searchParams.get('role')); // 'admin'
console.log(url.hash);     // '#profile' (Never sent to backend servers!)

Modern browsers and Node.js provide the standardized WHATWG URL class for safe, deterministic URL parsing.

Foire Aux Questions

Q&R sur les Normes

Is the URL fragment (#) sent to the web server?↓
No! According to RFC 3986, the fragment is processed exclusively on the client side (e.g. scrolling the viewport to an ID element). Browsers strip the fragment before sending the HTTP request packet.