Knowledge

Web standards

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591: 211:—groups of interested and often competing parties chartered with the task of standardization—not technologies developed and declared to be a standard by a single individual or company. It is crucial to distinguish those specifications that are under development from the ones that already reached the final development status (in case of 266:
that added to the cost and complexity of development. The extra code required, and the lack of a caching page layout language, made web sites "heavy" in terms of bandwidth, as did the frequent use of images as text. These bandwidth requirements were burdensome to users in developing countries, rural
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The web standards movement supports concepts of standards-based web design, including the separation of document structure from a web page or application's appearance and behavior; an emphasis on semantically structured content that validates (that is, contains no errors of structural composition)
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An IETF Internet Standard is characterized by a high degree of technical maturity and by a generally held belief that the specified protocol or service provides significant benefit to the Internet community. A specification that reaches the status of Standard is assigned a number in the IETF STD
239:, a layered approach to web page and application creation that enables all people and devices to access the content and functionality of a page, regardless of personal physical ability (accessibility), connection speed, and browser capability. 313:
were more than simply interesting technologies. "They are a way of creating Web pages that will facilitate the twin goals of sophisticated and appropriate presentation and widespread accessibility." The group succeeded in persuading
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Prior to the web standards movement, many web page developers used invalid, incorrect HTML syntax such as "table layouts" and "spacer" GIF images to create web pages — an approach often referred to as "
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4), but were often inaccessible to people with disabilities. Tag soup pages also displayed or operated incorrectly in older browsers, and required code forks such as
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A W3C Recommendation is a specification or set of guidelines that, after extensive consensus-building, has received the endorsement of W3C Members and the Director.
69:, not just the World Wide Web. Even when not web-focused, such standards directly or indirectly affect the development and administration of web sites and 322:, and other browser makers to support these standards in their browsers. It then set about promoting these standards to designers, who were still using 123: 1288: 1278: 165: 526:
There are compliance tests both for HTML code generated by websites as well as for the faithful interpretation of HTML code by web browsers.
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HTML 5 contains numerous "willful violations" of other specifications, in order to accommodate limitations of existing platforms.
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offers online services to test websites directly for both web site developers, as well as for website users. These include:
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When a web site or web page is described as complying with web standards, it usually means that the site or page has valid
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to deliver the page, return data from it and to request other resources referenced in it, based on RFC 2616, from IETF.
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Web standards include many interdependent standards and specifications, some of which govern aspects of the
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When web standards are discussed, the following publications are typically seen as foundational:
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Web standards are evolving specifications of web technologies. Web standards are developed by
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Properly formed names and addresses for the page and all other resources referenced from it (
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More broadly, the following technologies may be referred to as "web standards" as well:
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to check Cascading Style Sheets (CSS) and (X)HTML documents with style sheets
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The earliest visible manifestation of the web standards movement was the
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Standard and various Unicode Technical Reports (UTRs) published by the
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guidelines. Full standard compliance also covers proper settings for
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areas, and wherever fast Internet connections were unavailable.
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is the annual international celebration of web standards and
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when tested against validation software maintained by the
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Sliwa, Carol (1998-08-17). "Browser standards targeted".
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Gleaning Resource Descriptions from Dialects of Languages
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to check the markup (HTML, XHTML, ...) of Web documents
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series while retaining its original IETF RFC number.
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is currently focused by publications related to the
442:, more commonly JavaScript, from Ecma International. 435:, especially Cascading Style Sheets (CSS), from W3C. 908: 521: 999:Uniform Resource Identifiers (URI): Generic Syntax 124:Web Hypertext Application Technology Working Group 122:Standards and "Living standards" published by the 116:(SVG), as well as accessibility technologies like 1903: 864:Web standards - Mastering HTML5, CSS3, and XML 166:International Organization for Standardization 1168: 514:Non-standard and vendor-proprietary pressures 471:Web accessibility is normally based upon the 218: 215:specifications, the highest maturity level). 199:Name and number registries maintained by the 57:and development that includes those methods. 860: 778:"Search for World Wide Web in ISO standards" 445:Recommendations for Document Object Models ( 563:(WaSP), although development is officially 1175: 1161: 1070: 1011: 896:. Vol. 32, no. 33. p. 76. 701: 699: 697: 420:), Extensible Hypertext Markup Language ( 301:The Web Standards movement declared that 681:"W3C Technical Reports and Publications" 270:The Web Standards movement pioneered by 88:Web standards consist of the following: 41:that define and describe aspects of the 1058:Hypertext Transfer Protocol -- HTTP/1.1 945:Zeldman on Web & Interaction Design 938: 705: 14: 1904: 963: 694: 1156: 891: 416:, such as Hypertext Markup Language ( 710:. Berkeley: New Riders. p. 11. 473:Web Content Accessibility Guidelines 1148:The Internet Engineering Task Force 1051:; Masinter, Larry; Leach, Paul J.; 201:Internet Assigned Numbers Authority 24: 1182: 456:), based upon RFC 2396, from IETF. 25: 1923: 1136: 660:"Mission - Web Standards Project" 555:Compliance tests for web browsers 530:Compliance tests for website code 502:Standards publications and bodies 424:), and Scalable Vector Graphics ( 278:, Steven Champeon, Todd Fahrner, 182:(RFC) documents published by the 92:Recommendations published by the 589: 522:Web Standards Compliance Testing 294:with light, semantic markup and 33:are the formal, non-proprietary 1113: 1092: 1033: 982: 957: 939:Zeldman, Jeffrey (2008-11-20). 932: 885: 854: 356: 184:Internet Engineering Task Force 833: 812: 791: 770: 748: 724: 673: 652: 488:Resource Description Framework 13: 1: 964:Walker, Alissa (2009-11-30). 708:Developing with Web Standards 646: 630:W3C Markup Validation Service 108:(CSS), image formats such as 73:. Considerations include the 706:Allsopp, John (2009-12-09). 612:Designing with Web Standards 477:Web Accessibility Initiative 373:. The HTML should also meet 343:Designing with Web Standards 85:of web pages and web sites. 7: 820:"Unicode Technical Reports" 582: 482:Work in the W3C toward the 248:Microsoft Internet Explorer 164:Standards published by the 60: 10: 1928: 996:; Masinter, Larry (1998). 921:. Archive.webstandards.org 756:"Ecma formal publications" 219:The web standards movement 159:JavaScript Object Notation 1822: 1774: 1738: 1715: 1642: 1574: 1565: 1503: 1494: 1434: 1361: 1269: 1199: 1190: 542:Markup Validation Service 233:World Wide Web Consortium 110:Portable Network Graphics 94:World Wide Web Consortium 149:(formerly ECMA) such as 114:Scalable Vector Graphics 1049:Nielsen, Henrik Frystyk 919:"Web Standards Mission" 475:published by the W3C's 296:progressive enhancement 237:progressive enhancement 209:standards organizations 145:Standards published by 548:CSS Validation Service 126:(WHATWG), such as the 106:Cascading Style Sheets 53:, and a philosophy of 1047:; Mogul, Jeffrey C.; 861:Leslie Sikos (2011). 640:Web Standards Project 624:Responsive web design 561:Web Standards Project 496:Web Ontology Language 225:Web Standards Project 941:"Blue Beanie Day II" 822:. Unicode Consortium 431:Recommendations for 412:Recommendations for 180:Request for Comments 128:HTML Living Standard 37:and other technical 618:Open Web Foundation 1470:Application server 732:"WHATWG Standards" 577:Acid3 Browser Test 572:Acid2 Browser Test 383:character encoding 345:. Since then, the 260:Netscape Navigator 252:Netscape Navigator 195:Unicode Consortium 147:Ecma International 27:Technical standard 1899: 1898: 1818: 1817: 1795:Browser extension 1770: 1769: 1490: 1489: 1426:Phusion Passenger 878:978-1-4302-4041-9 717:978-0-321-70271-5 393:news feed, valid 351:web accessibility 264:Internet Explorer 136:Encoding Standard 16:(Redirected from 1919: 1864:Web API security 1786:Remote scripting 1756:Web SQL Database 1572: 1571: 1501: 1500: 1197: 1196: 1177: 1170: 1163: 1154: 1153: 1131: 1130: 1128: 1127: 1117: 1111: 1110: 1108: 1107: 1096: 1090: 1089: 1087: 1086: 1074: 1072:10.17487/RFC2616 1053:Berners-Lee, Tim 1041:Fielding, Roy T. 1037: 1031: 1030: 1028: 1027: 1015: 1013:10.17487/RFC2396 994:Fielding, Roy T. 990:Berners-Lee, Tim 986: 980: 979: 977: 976: 961: 955: 954: 952: 951: 936: 930: 929: 927: 926: 915: 906: 905: 889: 883: 882: 858: 852: 851: 849: 848: 841:"IANA home page" 837: 831: 830: 828: 827: 816: 810: 809: 807: 806: 795: 789: 788: 786: 785: 774: 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339:Blue Beanie Day 276:Jeffrey Zeldman 221: 168:(ISO), such as 153:(also known as 96:(W3C), such as 63: 28: 23: 22: 15: 12: 11: 5: 1925: 1915: 1914: 1897: 1896: 1894: 1893: 1888: 1887: 1886: 1881: 1876: 1866: 1861: 1860: 1859: 1849: 1848: 1847: 1842: 1832: 1826: 1824: 1820: 1819: 1816: 1815: 1813: 1812: 1807: 1802: 1797: 1792: 1778: 1776: 1772: 1771: 1768: 1767: 1765: 1764: 1759: 1758:(formerly W3C) 1753: 1748: 1742: 1740: 1736: 1735: 1733: 1732: 1727: 1721: 1719: 1713: 1712: 1710: 1709: 1704: 1699: 1694: 1689: 1684: 1679: 1674: 1669: 1664: 1659: 1654: 1648: 1646: 1640: 1639: 1637: 1636: 1634:XMLHttpRequest 1631: 1626: 1621: 1616: 1611: 1606: 1601: 1596: 1591: 1586: 1580: 1578: 1569: 1563: 1562: 1560: 1559: 1554: 1549: 1544: 1543: 1542: 1532: 1527: 1526: 1525: 1520: 1509: 1507: 1498: 1492: 1491: 1488: 1487: 1485: 1484: 1479: 1478: 1477: 1467: 1462: 1457: 1448: 1438: 1436: 1432: 1431: 1429: 1428: 1423: 1418: 1413: 1408: 1403: 1398: 1393: 1388: 1383: 1378: 1373: 1367: 1365: 1363:Apache modules 1359: 1358: 1356: 1355: 1354: 1353: 1343: 1338: 1333: 1328: 1323: 1318: 1313: 1308: 1307: 1306: 1296: 1291: 1286: 1281: 1275: 1273: 1267: 1266: 1264: 1263: 1258: 1253: 1248: 1243: 1238: 1233: 1232: 1231: 1226: 1221: 1216: 1205: 1203: 1194: 1188: 1187: 1184:Web interfaces 1180: 1179: 1172: 1165: 1157: 1151: 1150: 1145: 1138: 1137:External links 1135: 1133: 1132: 1112: 1091: 1032: 981: 956: 931: 907: 884: 877: 853: 832: 811: 790: 769: 747: 723: 716: 693: 672: 650: 648: 645: 643: 642: 637: 632: 627: 621: 615: 608: 602: 601: 600: 584: 581: 580: 579: 574: 556: 553: 552: 551: 545: 531: 528: 523: 520: 515: 512: 503: 500: 469: 468: 459:Proper use of 457: 450: 443: 438:Standards for 436: 429: 358: 355: 337:initiated the 286:, Dori Smith, 220: 217: 205: 204: 197: 187: 173: 172: 162: 143: 120: 62: 59: 47:best practices 43:World Wide Web 39:specifications 26: 9: 6: 4: 3: 2: 1924: 1913: 1912:Web standards 1910: 1909: 1907: 1892: 1891:Web framework 1889: 1885: 1882: 1880: 1877: 1875: 1872: 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Meyer 277: 273: 268: 265: 261: 257: 253: 249: 245: 240: 238: 234: 228: 226: 216: 214: 210: 202: 198: 196: 192: 188: 185: 181: 178: 177: 176: 171: 167: 163: 160: 156: 152: 148: 144: 141: 137: 133: 129: 125: 121: 119: 115: 111: 107: 103: 99: 95: 91: 90: 89: 86: 84: 80: 79:accessibility 76: 72: 68: 58: 56: 52: 49:for building 48: 44: 40: 36: 32: 31:Web standards 19: 1851: 1505:Browser APIs 1446:Web resource 1143:W3C homepage 1124:. Retrieved 1115: 1104:. Retrieved 1094: 1083:. Retrieved 1057: 1035: 1024:. Retrieved 998: 984: 973:. Retrieved 970:Fast Company 969: 959: 948:. Retrieved 944: 934: 923:. Retrieved 893: 887: 863: 856: 845:. Retrieved 835: 824:. Retrieved 814: 803:. Retrieved 793: 782:. Retrieved 772: 760:. Retrieved 750: 739:. Retrieved 735: 726: 707: 685:. Retrieved 675: 664:. Retrieved 654: 610: 564: 558: 533: 525: 517: 508: 505: 494:(GRDDL) and 484:Semantic Web 481: 470: 449:), from W3C. 407: 360: 357:Common usage 342: 332: 300: 284:Tantek Çelik 269: 241: 229: 222: 206: 174: 154: 140:URL Standard 132:DOM Standard 87: 71:web services 64: 30: 29: 1884:Progressive 1879:Single-page 1687:WebAssembly 1667:Geolocation 1624:Web storage 1530:C NPRuntime 1518:LiveConnect 1496:Client-side 1442:Web service 1371:mod_include 1326:Python ASGI 1321:Python WSGI 1271:Server APIs 1192:Server-side 1102:. W3C. 1999 433:stylesheets 428:) from W3C. 347:30 November 335:Douglas Vos 328:Adobe Flash 272:Glenn Davis 1652:DOM events 1629:Web worker 1614:WebSockets 1475:comparison 1411:mod_python 1391:mod_parrot 1224:Encryption 1126:2017-06-29 1106:2009-02-18 1085:2009-10-27 1026:2009-10-27 975:2020-04-21 950:2020-04-21 925:2014-02-26 847:2009-01-19 826:2009-01-19 805:2009-01-19 784:2009-01-19 762:2009-01-19 741:2020-11-22 687:2009-01-19 666:2009-01-19 647:References 440:ECMAScript 371:JavaScript 311:JavaScript 256:JavaScript 155:ECMAScript 151:JavaScript 112:(PNG) and 55:web design 1810:Scripting 1672:IndexedDB 1523:XPConnect 1482:Scripting 1406:mod_proxy 1351:container 1341:Perl PSGI 1331:Ruby Rack 1304:container 1261:WebSocket 1201:Protocols 902:0010-4841 389:or valid 333:In 2007, 320:Microsoft 83:usability 51:web sites 35:standards 1906:Category 1835:Web page 1692:WebAuthn 1567:Web APIs 1460:Open API 1421:mod_ruby 1416:mod_wsgi 1396:mod_perl 1386:mod_mono 1381:mod_lisp 1311:CLI OWIN 1055:(1999). 583:See also 565:inactive 401:, valid 399:metadata 397:, valid 385:, valid 379:semantic 324:tag soup 316:Netscape 292:tag soup 288:Tim Bray 244:tag soup 118:WAI-ARIA 67:Internet 61:Overview 18:Open Web 1845:Dynamic 1805:Web IDL 1751:GraphQL 1717:Khronos 1547:ActiveX 1535:C PPAPI 1513:C NPAPI 1465:Webhook 1401:mod_php 1346:Portlet 1294:COM ASP 1289:C ISAPI 1284:C ASAPI 1279:C NSAPI 498:(OWL). 490:(RDF), 191:Unicode 161:(JSON) 1840:Static 1823:Topics 1800:Mashup 1775:Topics 1762:WebUSB 1739:Others 1702:WebRTC 1697:WebGPU 1589:Canvas 1576:WHATWG 1435:Topics 1376:mod_jk 1229:WebDAV 900:  875:  869:Apress 843:. IANA 801:. IETF 758:. Ecma 714:  662:. WaSP 309:, and 250:4 and 235:; and 203:(IANA) 186:(IETF) 157:) and 1790:DHTML 1746:Gears 1730:WebGL 1725:WebCL 1707:WebXR 1609:Video 1584:Audio 780:. ISO 683:. W3C 626:(RWD) 620:(OWF) 606:Acid3 422:XHTML 102:XHTML 1874:Rich 1857:REST 1788:vs. 1784:and 1782:Ajax 1662:File 1594:CORS 1557:XBAP 1540:NaCl 1453:vs. 1444:vs. 1256:WSRP 1246:FCGI 1241:SCGI 1209:HTTP 1080:2616 1063:IETF 1021:2396 1004:IETF 898:ISSN 873:ISBN 712:ISBN 559:The 465:MIME 463:and 461:HTTP 454:URIs 418:HTML 391:Atom 377:and 369:and 363:HTML 303:HTML 258:for 189:The 170:JPEG 138:and 98:HTML 81:and 1682:SVG 1677:MSE 1657:EME 1644:W3C 1604:SSE 1599:DOM 1552:BHO 1455:ROA 1451:WOA 1251:AJP 1236:CGI 1077:RFC 1067:doi 1018:RFC 1008:doi 535:W3C 447:DOM 426:SVG 403:XML 395:RDF 387:RSS 367:CSS 307:CSS 213:W3C 1908:: 1219:v3 1214:v2 1075:. 1065:. 1061:. 1043:; 1016:. 1006:. 1002:. 992:; 968:. 943:. 910:^ 871:. 867:. 734:. 696:^ 479:. 365:, 353:. 326:, 318:, 305:, 282:, 134:, 130:, 104:, 77:, 1176:e 1169:t 1162:v 1129:. 1109:. 1088:. 1069:: 1029:. 1010:: 978:. 953:. 928:. 904:. 881:. 850:. 829:. 808:. 787:. 767:, 765:. 744:. 720:. 690:. 669:. 142:. 100:/ 20:)

Index

Open Web
standards
specifications
World Wide Web
best practices
web sites
web design
Internet
web services
interoperability
accessibility
usability
World Wide Web Consortium
HTML
XHTML
Cascading Style Sheets
Portable Network Graphics
Scalable Vector Graphics
WAI-ARIA
Web Hypertext Application Technology Working Group
HTML Living Standard
DOM Standard
Encoding Standard
URL Standard
Ecma International
JavaScript
JavaScript Object Notation
International Organization for Standardization
JPEG
Request for Comments

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