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  1. Glossary
  2. HTTP/3
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In this article

  • See also
  1. Glossary
    1. Abstraction
    2. Accent
    3. Accessibility
    4. Accessibility tree
    5. Accessible description
    6. Accessible name
    7. Adobe Flash
    8. Advance measure
    9. Ajax
    10. Algorithm
    11. Alignment container
    12. Alignment subject
    13. Alpha (alpha channel)
    14. ALPN
    15. API
    16. Apple Safari
    17. Application context
    18. Argument
    19. ARIA
    20. ARPA
    21. ARPANET
    22. Array
    23. ASCII
    24. Aspect ratio
    25. Asynchronous
    26. ATAG
    27. Attribute
    28. Authentication
    29. Authenticator
    30. Bandwidth
    31. Base64
    32. Baseline
      1. Baseline (compatibility)
      2. Baseline (typography)
    33. Beacon
    34. Bézier curve
    35. bfcache
    36. BiDi
    37. BigInt
    38. Binding
    39. Bitwise flags
    40. Blink
    41. blink element (<blink> tag)
    42. Block
      1. Block (CSS)
      2. Block (scripting)
    43. Block cipher mode of operation
    44. Block-level content
    45. Boolean
      1. Boolean (JavaScript)
      2. Boolean attribute (ARIA)
      3. Boolean attribute (HTML)
    46. Bounding Box
    47. Breadcrumb
    48. Brotli compression
    49. Browser
    50. Browsing context
    51. Buffer
    52. Bun
    53. Cache
    54. Cacheable
    55. CalDAV
    56. Call stack
    57. Callback function
    58. Camel case
    59. Canonical order
    60. Canvas
    61. Card sorting
    62. CardDAV
    63. Caret
    64. CDN
    65. Certificate authority
    66. Certified
    67. Challenge-response authentication
    68. Character
    69. Character encoding
    70. Character reference
    71. Character set
    72. Chrome
    73. CIA
    74. Cipher
    75. Cipher suite
    76. Ciphertext
    77. Class
    78. Client-side rendering (CSR)
    79. Closure
    80. Cloud
    81. Cloud computing
    82. CMS
    83. Code point
    84. Code splitting
    85. Code unit
    86. Codec
    87. Color space
    88. Color wheel
    89. Compile
    90. Compile time
    91. Composite operation
    92. Computer Programming
    93. Conditional
    94. Constant
    95. Constructor
    96. Content header
    97. Continuous Media
    98. Control flow
    99. Cookie
    100. Copyleft
    101. CORS
    102. CORS-safelisted request header
    103. CORS-safelisted response header
    104. Crawler
    105. Credential
    106. CRLF
    107. Cross Axis
    108. Cross-site scripting (XSS)
    109. CRUD
    110. Cryptanalysis
    111. Cryptographic hash function
    112. Cryptography
    113. CSP
    114. CSRF
    115. CSS
    116. CSS Object Model (CSSOM)
    117. CSS pixel
    118. CSS preprocessor
    119. Cumulative Layout Shift (CLS)
    120. Data structure
    121. Database
    122. Debounce
    123. Decryption
    124. Deep copy
    125. Delta
    126. Denial of Service (DoS)
    127. Deno
    128. Descriptor (CSS)
    129. Deserialization
    130. Developer Tools
    131. Device pixel
    132. Digest
    133. Digital certificate
    134. Digital signature
    135. Distributed Denial of Service (DDoS)
    136. DMZ
    137. DNS
    138. Doctype
    139. Document directive
    140. Document environment
    141. DOM (Document Object Model)
    142. Domain
    143. Domain name
    144. Domain sharding
    145. Dominator
    146. DSL
      1. DSL (Digital Subscriber Line)
      2. DSL (Domain-Specific Language)
    147. DTLS (Datagram Transport Layer Security)
    148. DTMF (Dual-Tone Multi-Frequency signaling)
    149. Dynamic typing
    150. ECMA
    151. ECMAScript
    152. Effective connection type
    153. Element
    154. Encapsulation
    155. Encryption
    156. Endianness
    157. Engine
      1. JavaScript engine
      2. Rendering engine
    158. Entity
    159. Entity header
    160. Enumerated
    161. Escape character
    162. eTLD
    163. Event
    164. Exception
    165. EXIF
    166. Expando
    167. Fallback alignment
    168. Falsy
    169. Favicon
    170. Federated identity
    171. Fetch directive
    172. Fetch metadata request header
    173. Fingerprinting
    174. Firefox OS
    175. Firewall
    176. First Contentful Paint (FCP)
    177. First CPU idle
    178. First Input Delay (FID) Deprecated
    179. First Meaningful Paint (FMP)
    180. First Paint (FP)
    181. First-class Function
    182. Flex
    183. Flex Container
    184. Flex Item
    185. Flexbox
    186. Flow relative values
    187. Forbidden header name
    188. Forbidden response header name
    189. Fork
    190. Fragmentainer
    191. Frame rate (FPS)
    192. FTP
    193. FTU
    194. Function
    195. Fuzz testing
    196. Gamut
    197. Garbage collection
    198. Gecko
    199. General header
    200. GIF
    201. Git
    202. Global object
    203. Global scope
    204. Global variable
    205. Glyph
    206. Google Chrome
    207. GPL
    208. GPU
    209. Graceful degradation
    210. Grid
    211. Grid Areas
    212. Grid Axis
    213. Grid Cell
    214. Grid Column
    215. Grid container
    216. Grid Lines
    217. Grid Row
    218. Grid Tracks
    219. Guaranteed-invalid value
    220. Gutters
    221. gzip compression
    222. Hash
    223. Head
    224. Head-of-line blocking
    225. High-level programming language
    226. HMAC
    227. Hoisting
    228. Host
    229. Hotlink
    230. Houdini
    231. HPKP
    232. HSTS
    233. HTML
    234. HTML color codes
    235. HTML5
    236. HTTP
    237. HTTP Content
    238. HTTP header
    239. HTTP/2
    240. HTTP/3
    241. HTTPS
    242. HTTPS RR
    243. Hyperlink
    244. Hypertext
    245. IANA
    246. ICANN
    247. ICE
    248. IDE
    249. Idempotent
    250. Identifier
    251. Identity provider (IdP)
    252. IDL
    253. IETF
    254. IIFE
    255. IMAP
    256. Immutable
    257. IndexedDB
    258. Information architecture
    259. Inheritance
    260. Ink overflow
    261. Inline-level content
    262. Input method editor
    263. Inset properties
    264. Instance
    265. Interaction to Next Paint (INP)
    266. Internationalization (i18n)
    267. Internet
    268. Interpolation
    269. Intrinsic size
    270. IP Address
    271. IPv4
    272. IPv6
    273. IRC
    274. ISO
    275. ISP
    276. ITU
    277. Jank
    278. Java
    279. JavaScript
    280. Jitter
    281. JPEG
    282. JSON
    283. JSON type representation
    284. Just-In-Time Compilation (JIT)
    285. Kebab case
    286. Key
    287. Keyword
    288. Largest Contentful Paint (LCP)
    289. Latency
    290. Layout viewport
    291. Lazy load
    292. LGPL
    293. Ligature
    294. Literal
    295. Local scope
    296. Local variable
    297. Locale
    298. Localization
    299. Logical properties
    300. Long task
    301. Loop
    302. Lossless compression
    303. Lossy compression
    304. LTR (Left To Right)
    305. Main Axis
    306. Main thread
    307. Markup
    308. MathML
    309. Media
      1. Media (Audio-visual presentation)
      2. Media (CSS)
    310. Media query
    311. Metadata
    312. Method
    313. Microsoft Edge
    314. Microsoft Internet Explorer
    315. Middleware
    316. MIME
    317. MIME type
    318. Minification
    319. MitM
    320. Mixin
    321. Mobile First
    322. Modem
    323. Modularity
    324. Mozilla Firefox
    325. Mutable
    326. MVC
    327. Namespace
    328. NaN
    329. NAT
    330. Native
    331. Navigation directive
    332. Netscape Navigator
    333. Network throttling
    334. NNTP
    335. Node
      1. Node (DOM)
      2. Node (networking)
    336. Node.js
    337. Non-normative
    338. Normative
    339. Null
    340. Nullish value
    341. Number
    342. Object
    343. Object reference
    344. OOP
    345. OpenGL
    346. OpenSSL
    347. Opera Browser
    348. Operand
    349. Operator
    350. Origin
    351. OTA
    352. OWASP
    353. P2P
    354. PAC
    355. Packet
    356. Page load time
    357. Page prediction
    358. Parameter
    359. Parent object
    360. Parse
    361. Parser
    362. Payload body
    363. Payload header
    364. PDF
    365. Perceived performance
    366. Percent-encoding
    367. PHP
    368. Physical properties
    369. Pixel
    370. Placeholder names
    371. Plaintext
    372. Plugin
    373. PNG
    374. Polyfill
    375. Polymorphism
    376. POP3
    377. Port
    378. Prefetch
    379. Preflight request
    380. Prerender
    381. Presto
    382. Primitive
    383. Privileged
    384. Privileged code
    385. Progressive Enhancement
    386. Progressive web apps
    387. Promise
    388. Property
      1. Property (CSS)
      2. Property (JavaScript)
    389. Protocol
    390. Prototype
    391. Prototype-based programming
    392. Proxy server
    393. Pseudo-class
    394. Pseudo-element
    395. Pseudocode
    396. Public-key cryptography
    397. Python
    398. Quality values
    399. Quaternion
    400. QUIC
    401. RAIL
    402. Random Number Generator
    403. Raster image
    404. Rate limit
    405. RDF
    406. Real User Monitoring (RUM)
    407. Recursion
    408. Reflow
    409. Regular expression
    410. Relying party
    411. Render-blocking
    412. Repaint
    413. Replay attack
    414. Repo
    415. Reporting directive
    416. Representation header
    417. Request header
    418. Resource Timing
    419. Response header
    420. Responsive web design
    421. REST
    422. RGB
    423. RIL
    424. Robots.txt
    425. Round Trip Time (RTT)
    426. Router
    427. RSS
    428. Rsync
    429. RTCP (RTP Control Protocol)
    430. RTF
    431. RTL (Right to Left)
    432. RTP (Real-time Transport Protocol) and SRTP (Secure RTP)
    433. RTSP: Real-time streaming protocol
    434. Ruby
    435. Safe
      1. Safe (HTTP Methods)
    436. Salt
    437. Same-origin policy
    438. SCM
    439. Scope
    440. Screen reader
    441. Script-supporting element
    442. Scroll boundary
    443. Scroll chaining
    444. Scroll container
    445. Scroll snap
    446. SCTP
    447. SDK (Software Development Kit)
    448. SDP
    449. Search engine
    450. Secure Context
    451. Secure Sockets Layer (SSL)
    452. Selector (CSS)
    453. Semantics
    454. SEO
    455. Serializable object
    456. Serialization
    457. Server
    458. Server Timing
    459. Server-side rendering (SSR)
    460. Session Hijacking
    461. SGML
    462. Shadow tree
    463. Shallow copy
    464. Shim
    465. Signature
      1. Signature (functions)
      2. Signature (security)
    466. SIMD
    467. SISD
    468. Site
    469. Site map
    470. SLD
    471. Sloppy mode
    472. Slug
    473. Smoke Test
    474. SMPTE (Society of Motion Picture and Television Engineers)
    475. SMTP
    476. Snake case
    477. Snap positions
    478. SOAP
    479. Source map
    480. SPA (Single-page application)
    481. Specification
    482. Speculative parsing
    483. Speed index
    484. SQL
    485. SQL Injection
    486. SRI
    487. Stacking context
    488. State machine
    489. Statement
    490. Static method
    491. Static site generator (SSG)
    492. Static typing
    493. Sticky activation
    494. Strict mode
    495. String
    496. Stringifier
    497. STUN
    498. Style origin
    499. Stylesheet
    500. Submit button
    501. SVG
    502. SVN
    503. Symbol
    504. Symmetric-key cryptography
    505. Synchronous
    506. Syntax
    507. Syntax error
    508. Synthetic monitoring
    509. Table grid box
    510. Table Wrapper Box
    511. Tag
    512. TCP
    513. TCP handshake
    514. TCP slow start
    515. Telnet
    516. Texel
    517. The Khronos Group
    518. Thread
    519. Three js
    520. Throttle
    521. Time to first byte
    522. Time to interactive
    523. TLD
    524. TOFU
    525. Top layer
    526. Transient activation
    527. Transport Layer Security (TLS)
    528. Tree shaking
    529. Trident
    530. Truthy
    531. TTL
    532. TURN
    533. Type
    534. Type coercion
    535. Type conversion
    536. TypeScript
    537. UAAG
    538. UDP (User Datagram Protocol)
    539. UI
    540. Undefined
    541. Unicode
    542. Unix time
    543. URI
    544. URL
    545. URN
    546. Usenet
    547. User agent
    548. UTF-8
    549. UUID
    550. UX
    551. Validator
    552. Value
    553. Variable
    554. Vendor Prefix
    555. Viewport
    556. Visual Viewport
    557. Void element
    558. VoIP
    559. W3C
    560. WAI
    561. WCAG
    562. Web performance
    563. Web server
    564. Web standards
    565. WebAssembly
    566. WebDAV
    567. WebExtensions
    568. WebGL
    569. WebIDL
    570. WebKit
    571. WebM
    572. WebP
    573. WebRTC
    574. WebSockets
    575. WebVTT
    576. WHATWG
    577. Whitespace
    578. WindowProxy
    579. World Wide Web
    580. Wrapper
    581. XForms Deprecated
    582. XHTML
    583. XInclude
    584. XLink
    585. XML
    586. XMLHttpRequest (XHR)
    587. XPath
    588. XQuery
    589. XSLT
    590. Zstandard compression

In this article

  • See also

HTTP/3

HTTP/3 is a major revision of the HTTP network protocol, succeeding HTTP/2.

The most notable difference in HTTP/3 is that it uses a protocol named QUIC over UDP instead of TCP.

See also

  • HTTP documentation
  • HTTP/3 on Wikipedia
  • Related glossary terms:
    • HTTP
    • HTTP 2
    • Latency

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