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Key lengths | Reports | OpenStreetMap Taginfo Vietnam
<!DOCTYPE html> <html lang="en" dir="ltr"> <head profile="http://a9.com/-/spec/opensearch/1.1/"> <title>Key lengths | Reports | OpenStreetMap Taginfo Vietnam</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <meta name="content-language" content="en" /> <meta name="viewport" content="width=device-width, initial-scale=1"/> <link rel="stylesheet" type="text/css" href="/css/taginfo.css" /> <link rel="search" type="application/opensearchdescription+xml" href="/search/opensearch.xml" title="Taginfo Vietnam" /> <script id="context" type="application/json"> {"instance":"asia:vietnam","instances":{"australia-oceania:polynesie-francaise":"Polynésie française (French Polynesia)","australia-oceania:tokelau":"Tokelau","australia-oceania:new-zealand":"New Zealand","australia-oceania:wallis-et-futuna":"Wallis et Futuna","australia-oceania:niue":"Niue","australia-oceania:american-oceania":"American Oceania","australia-oceania:kiribati":"Kiribati","australia-oceania:marshall-islands":"Marshall Islands","australia-oceania:samoa":"Samoa","australia-oceania:ile-de-clipperton":"Île de Clipperton","australia-oceania:palau":"Palau","australia-oceania:cook-islands":"Cook Islands","australia-oceania:tuvalu":"Tuvalu","australia-oceania:papua-new-guinea":"Papua New Guinea","australia-oceania":"Australia and Oceania","australia-oceania:vanuatu":"Vanuatu","australia-oceania:tonga":"Tonga","australia-oceania:new-caledonia":"New Caledonia","australia-oceania:micronesia":"Micronesia","australia-oceania:fiji":"Fiji","australia-oceania:australia":"Australia","australia-oceania:nauru":"Nauru","australia-oceania:pitcairn-islands":"Pitcairn Islands","australia-oceania:solomon-islands":"Solomon Islands","europe:sweden":"Sweden","europe:slovenia":"Slovenia","europe:britain-and-ireland":"Britain and Ireland","europe:finland":"Finland","europe:denmark":"Denmark","europe:bulgaria":"Bulgaria","europe:hungary":"Hungary","europe:guernsey-jersey":"Guernsey and Jersey","europe:romania":"Romania","europe:turkey":"Turkey","europe:latvia":"Latvia","europe:liechtenstein":"Liechtenstein","europe:united-kingdom:scotland":"Scotland","europe:united-kingdom":"United Kingdom","europe:united-kingdom:wales":"Wales","europe:united-kingdom:england:greater-london":"Greater London","europe:united-kingdom:england:derbyshire":"Derbyshire","europe:united-kingdom:england:bristol":"Bristol","europe:united-kingdom:england:cheshire":"Cheshire","europe:united-kingdom:england:staffordshire":"Staffordshire","europe:united-kingdom:england:east-sussex":"East Sussex","europe:united-kingdom:england:suffolk":"Suffolk","europe:united-kingdom:england:essex":"Essex","europe:united-kingdom:england:lancashire":"Lancashire","europe:united-kingdom:england:nottinghamshire":"Nottinghamshire","europe:united-kingdom:england:cornwall":"Cornwall","europe:united-kingdom:england:west-yorkshire":"West Yorkshire","europe:united-kingdom:england:durham":"Durham","europe:united-kingdom:england:london:enfield":"Enfield","europe:united-kingdom:england:merseyside":"Merseyside","europe:united-kingdom:england:hertfordshire":"Hertfordshire","europe:united-kingdom:england:lincolnshire":"Lincolnshire","europe:united-kingdom:england:devon":"Devon","europe:united-kingdom:england:northumberland":"Northumberland","europe:united-kingdom:england:dorset":"Dorset","europe:united-kingdom:england:worcestershire":"Worcestershire","europe:united-kingdom:england:buckinghamshire":"Buckinghamshire","europe:united-kingdom:england":"England","europe:united-kingdom:england:shropshire":"Shropshire","europe:united-kingdom:england:north-yorkshire":"North Yorkshire","europe:united-kingdom:england:cambridgeshire":"Cambridgeshire","europe:united-kingdom:england:rutland":"Rutland","europe:united-kingdom:england:tyne-and-wear":"Tyne and Wear","europe:united-kingdom:england:greater-manchester":"Greater Manchester","europe:united-kingdom:england:leicestershire":"Leicestershire","europe:united-kingdom:england:norfolk":"Norfolk","europe:united-kingdom:england:west-midlands":"West Midlands","europe:united-kingdom:england:northamptonshire":"Northamptonshire","europe:united-kingdom:england:hampshire":"Hampshire","europe:united-kingdom:england:berkshire":"Berkshire","europe:united-kingdom:england:kent":"Kent","europe:united-kingdom:england:cumbria":"Cumbria","europe:united-kingdom:england:south-yorkshire":"South Yorkshire","europe:united-kingdom:england:warwickshire":"Warwickshire","europe:united-kingdom:england:west-sussex":"West Sussex","europe:united-kingdom:england:east-yorkshire-with-hull":"East Yorkshire with Hull","europe:united-kingdom:england:bedfordshire":"Bedfordshire","europe:united-kingdom:england:surrey":"Surrey","europe:united-kingdom:england:herefordshire":"Herefordshire","europe:united-kingdom:england:somerset":"Somerset","europe:united-kingdom:england:isle-of-wight":"Isle of Wight","europe:united-kingdom:england:wiltshire":"Wiltshire","europe:united-kingdom:england:gloucestershire":"Gloucestershire","europe:united-kingdom:england:oxfordshire":"Oxfordshire","europe:albania":"Albania","europe:norway":"Norway","europe:lithuania":"Lithuania","europe:georgia":"Georgia","europe:azores":"Azores","europe:estonia":"Estonia","europe:monaco":"Monaco","europe:czech-republic":"Czech Republic","europe:macedonia":"Macedonia","europe:luxembourg":"Luxembourg","europe":"Europe","europe:italy:isole":"Isole","europe:italy:nord-est":"Nord-Est","europe:italy":"Italy","europe:italy:nord-ovest":"Nord-Ovest","europe:italy:sud":"Sud","europe:italy:centro":"Centro","europe:dach":"Germany, Austria, Switzerland","europe:france:auvergne":"Auvergne","europe:france:nord-pas-de-calais":"Nord-Pas-de-Calais","europe:france:martinique":"Martinique","europe:france:picardie":"Picardie","europe:france:pays-de-la-loire":"Pays de la Loire","europe:france:bretagne":"Bretagne","europe:france:provence-alpes-cote-d-azur":"Provence Alpes-Cote-d'Azur","europe:france:lorraine":"Lorraine","europe:france:haute-normandie":"Haute-Normandie","europe:france:champagne-ardenne":"Champagne Ardenne","europe:france:basse-normandie":"Basse-Normandie","europe:france":"France","europe:france:alsace":"Alsace","europe:france:languedoc-roussillon":"Languedoc-Roussillon","europe:france:ile-de-france":"Ile-de-France","europe:france:aquitaine":"Aquitaine","europe:france:franche-comte":"Franche Comte","europe:france:guadeloupe":"Guadeloupe","europe:france:mayotte":"Mayotte","europe:france:guyane":"Guyane","europe:france:midi-pyrenees":"Midi-Pyrenees","europe:france:reunion":"Reunion","europe:france:poitou-charentes":"Poitou-Charentes","europe:france:centre":"Centre","europe:france:rhone-alpes":"Rhone-Alpes","europe:france:corse":"Corse","europe:france:limousin":"Limousin","europe:france:bourgogne":"Bourgogne","europe:poland:podlaskie":"Województwo podlaskie\u003Cbr />(Podlaskie Voivodeship)","europe:poland:malopolskie":"Województwo małopolskie\u003Cbr />(Lesser Poland Voivodeship)","europe:poland:wielkopolskie":"Województwo wielkopolskie\u003Cbr />(Greater Poland Voivodeship)","europe:poland:slaskie":"Województwo śląskie\u003Cbr />(Silesian Voivodeship)","europe:poland:podkarpackie":"Województwo podkarpackie\u003Cbr />(Subcarpathian Voivodeship)","europe:poland:warminsko-mazurskie":"Województwo warmińsko-mazurskie\u003Cbr />(Warmian-Masurian Voivodeship)","europe:poland:lodzkie":"Województwo łódzkie\u003Cbr />(Łódź Voivodeship)","europe:poland:pomorskie":"Województwo pomorskie\u003Cbr />(Pomeranian Voivodeship)","europe:poland:swietokrzyskie":"Województwo świętokrzyskie\u003Cbr />(Świętokrzyskie Voivodeship)","europe:poland:mazowieckie":"Województwo mazowieckie\u003Cbr />(Mazovian Voivodeship)","europe:poland:opolskie":"Województwo opolskie\u003Cbr />(Opole Voivodeship)","europe:poland":"Poland","europe:poland:zachodniopomorskie":"Województwo zachodniopomorskie\u003Cbr />(West Pomeranian Voivodeship)","europe:poland:kujawsko-pomorskie":"Województwo kujawsko-pomorskie\u003Cbr />(Kuyavian-Pomeranian Voivodeship)","europe:poland:dolnoslaskie":"Województwo dolnośląskie\u003Cbr />(Lower Silesian Voivodeship)","europe:poland:lubelskie":"Województwo lubelskie\u003Cbr />(Lublin Voivodeship)","europe:poland:lubuskie":"Województwo lubuskie\u003Cbr />(Lubusz Voivodeship)","europe:great-britain":"Great Britain","europe:alps":"Alps","europe:slovakia":"Slovakia","europe:serbia":"Serbia","europe:montenegro":"Montenegro","europe:spain:asturias":"Asturias","europe:spain:ceuta":"Ceuta","europe:spain:murcia":"Murcia","europe:spain:castilla-la-mancha":"Castilla-La Mancha","europe:spain:islas-baleares":"Islas Baleares","europe:spain:madrid":"Madrid","europe:spain:aragon":"Aragón","europe:spain":"Spain","europe:spain:castilla-y-leon":"Castilla y León","europe:spain:cantabria":"Cantabria","europe:spain:cataluna":"Cataluña","europe:spain:la-rioja":"La Rioja","europe:spain:melilla":"Melilla","europe:spain:extremadura":"Extremadura","europe:spain:andalucia":"Andalucía","europe:spain:pais-vasco":"País Vasco","europe:spain:galicia":"Galicia","europe:spain:valencia":"Valencia","europe:spain:navarra":"Navarra","europe:croatia":"Croatia","europe:austria":"Austria","europe:malta":"Malta","europe:ukraine":"Ukraine (with Crimea)","europe:switzerland":"Switzerland","europe:andorra":"Andorra","europe:germany:mecklenburg-vorpommern":"Mecklenburg-Vorpommern","europe:germany:brandenburg":"Brandenburg (mit Berlin)","europe:germany:bremen":"Bremen","europe:germany:bayern:oberbayern":"Oberbayern","europe:germany:bayern:schwaben":"Schwaben","europe:germany:bayern:oberpfalz":"Oberpfalz","europe:germany:bayern:oberfranken":"Oberfranken","europe:germany:bayern:unterfranken":"Unterfranken","europe:germany:bayern:mittelfranken":"Mittelfranken","europe:germany:bayern:niederbayern":"Niederbayern","europe:germany:bayern":"Bayern","europe:germany:hessen":"Hessen","europe:germany:schleswig-holstein":"Schleswig-Holstein","europe:germany":"Germany","europe:germany:hamburg":"Hamburg","europe:germany:berlin":"Berlin","europe:germany:niedersachsen":"Niedersachsen","europe:germany:baden-wuerttemberg:tuebingen-regbez":"Regierungsbezirk Tübingen","europe:germany:baden-wuerttemberg:freiburg-regbez":"Regierungsbezirk Freiburg","europe:germany:baden-wuerttemberg:karlsruhe-regbez":"Regierungsbezirk Karlsruhe","europe:germany:baden-wuerttemberg":"Baden-Württemberg","europe:germany:baden-wuerttemberg:stuttgart-regbez":"Regierungsbezirk Stuttgart","europe:germany:rheinland-pfalz":"Rheinland-Pfalz","europe:germany:sachsen":"Sachsen","europe:germany:thueringen":"Thüringen","europe:germany:nordrhein-westfalen:detmold-regbez":"Regierungsbezirk Detmold","europe:germany:nordrhein-westfalen:muenster-regbez":"Regierungsbezirk Münster","europe:germany:nordrhein-westfalen":"Nordrhein-Westfalen","europe:germany:nordrhein-westfalen:duesseldorf-regbez":"Regierungsbezirk Düsseldorf","europe:germany:nordrhein-westfalen:koeln-regbez":"Regierungsbezirk Köln","europe:germany:nordrhein-westfalen:arnsberg-regbez":"Regierungsbezirk Arnsberg","europe:germany:saarland":"Saarland","europe:germany:sachsen-anhalt":"Sachsen-Anhalt","europe:greece":"Greece","europe:cyprus":"Cyprus","europe:netherlands:utrecht":"Utrecht","europe:netherlands:groningen":"Groningen","europe:netherlands:drenthe":"Drenthe","europe:netherlands:zeeland":"Zeeland","europe:netherlands:friesland":"Friesland","europe:netherlands:flevoland":"Flevoland","europe:netherlands:overijssel":"Overijssel","europe:netherlands":"Netherlands","europe:netherlands:noord-holland":"Noord-Holland","europe:netherlands:zuid-holland":"Zuid-Holland","europe:netherlands:gelderland":"Gelderland","europe:netherlands:noord-brabant":"Noord-Brabant","europe:netherlands:limburg":"Limburg","europe:kosovo":"Kosovo","europe:isle-of-man":"Isle of Man","europe:faroe-islands":"Faroe Islands","europe:belgium":"Belgium","europe:iceland":"Iceland","europe:bosnia-herzegovina":"Bosnia-Herzegovina","europe:moldova":"Moldova","europe:ireland-and-northern-ireland":"Ireland and Northern Ireland","europe:portugal":"Portugal","europe:belarus":"Belarus","south-america:guyana":"Guyana","south-america:suriname":"Suriname","south-america:brazil:norte":"Norte","south-america:brazil:sul":"Sul","south-america:brazil:nordeste":"Nordeste","south-america:brazil":"Brazil","south-america:brazil:sudeste":"Sudeste","south-america:brazil:centro-oeste":"Centro-Oeste","south-america:bolivia":"Bolivia","south-america":"South America","south-america:colombia":"Colombia","south-america:chile":"Chile","south-america:uruguay":"Uruguay","south-america:ecuador":"Ecuador","south-america:peru":"Peru","south-america:argentina":"Argentina","south-america:paraguay":"Paraguay","south-america:venezuela":"Venezuela","asia:bangladesh":"Bangladesh","asia:north-korea":"North Korea","asia:uzbekistan":"Uzbekistan","asia:afghanistan":"Afghanistan","asia:indonesia:nusa-tenggara":"Nusa-Tenggara","asia:indonesia:sumatra":"Sumatra","asia:indonesia":"Indonesia (with East Timor)","asia:indonesia:sulawesi":"Sulawesi","asia:indonesia:kalimantan":"Kalimantan","asia:indonesia:maluku":"Maluku","asia:indonesia:java":"Java","asia:indonesia:papua":"Papua","asia:cambodia":"Cambodia","asia:bhutan":"Bhutan","asia:thailand":"Thailand","asia:china:tibet":"Tibet","asia:china:shandong":"Shandong","asia:china:shanghai":"Shanghai","asia:china:jilin":"Jilin","asia:china:jiangsu":"Jiangsu","asia:china:shaanxi":"Shaanxi","asia:china:fujian":"Fujian","asia:china:yunnan":"Yunnan","asia:china:liaoning":"Liaoning","asia:china:anhui":"Anhui","asia:china:qinghai":"Qinghai","asia:china:hainan":"Hainan","asia:china:inner-mongolia":"Inner Mongolia","asia:china:henan":"Henan","asia:china:hong:kong":"Hong Kong","asia:china:guangdong":"Guangdong (with Hong Kong and Macau)","asia:china:zhejiang":"Zhejiang","asia:china:tianjin":"Tianjin","asia:china:hubei":"Hubei","asia:china:hebei":"Hebei (with Beijing and Tianjin)","asia:china":"China","asia:china:hunan":"Hunan","asia:china:ningxia":"Ningxia","asia:china:shanxi":"Shanxi","asia:china:heilongjiang":"Heilongjiang","asia:china:sichuan":"Sichuan","asia:china:jiangxi":"Jiangxi","asia:china:inner:mongolia":"Inner Mongolia","asia:china:macau":"Macau","asia:china:guangxi":"Guangxi","asia:china:xinjiang":"Xinjiang","asia:china:gansu":"Gansu","asia:china:beijing":"Beijing","asia:china:hong-kong":"Hong Kong","asia:china:guizhou":"Guizhou","asia:china:chongqing":"Chongqing","asia:laos":"Laos","asia:tajikistan":"Tajikistan","asia:israel-and-palestine":"Israel and Palestine","asia:maldives":"Maldives","asia:iraq":"Iraq","asia:sri-lanka":"Sri Lanka","asia:turkmenistan":"Turkmenistan","asia:east-timor":"East Timor","asia:syria":"Syria","asia:gcc-states":"GCC States","asia:kazakhstan":"Kazakhstan","asia:yemen":"Yemen","asia":"Asia","asia:lebanon":"Lebanon","asia:myanmar":"Myanmar (a.k.a. Burma)","asia:india:eastern-zone":"Eastern Zone","asia:india:central-zone":"Central Zone","asia:india:southern-zone":"Southern Zone","asia:india":"India","asia:india:northern-zone":"Northern Zone","asia:india:western-zone":"Western Zone","asia:india:north-eastern-zone":"North-Eastern Zone","asia:vietnam":"Vietnam","asia:pakistan":"Pakistan","asia:philippines":"Philippines","asia:malaysia-singapore-brunei":"Malaysia, Singapore, and Brunei","asia:iran":"Iran","asia:japan:shikoku":"Shikoku","asia:japan:kyushu":"Kyūshū","asia:japan:kansai":"Kansai region (a.k.a. Kinki region)","asia:japan":"Japan","asia:japan:tohoku":"Tōhoku region","asia:japan:hokkaido":"Hokkaidō","asia:japan:chugoku":"Chūgoku region","asia:japan:kanto":"Kantō region","asia:japan:chubu":"Chūbu region","asia:nepal":"Nepal","asia:jordan":"Jordan","asia:taiwan":"Taiwan","asia:azerbaijan":"Azerbaijan","asia:armenia":"Armenia","asia:mongolia":"Mongolia","asia:kyrgyzstan":"Kyrgyzstan","asia:south-korea":"South Korea","africa:lesotho":"Lesotho","africa:cape-verde":"Cape Verde","africa:mauritius":"Mauritius","africa:congo-brazzaville":"Congo (Republic/Brazzaville)","africa:botswana":"Botswana","africa:eritrea":"Eritrea","africa:south-africa-and-lesotho":"South Africa (includes Lesotho)","africa:somalia":"Somalia","africa:gabon":"Gabon","africa:burundi":"Burundi","africa:swaziland":"Swaziland","africa:mauritania":"Mauritania","africa:cameroon":"Cameroon","africa:kenya":"Kenya","africa:ghana":"Ghana","africa:saint-helena-ascension-and-tristan-da-cunha":"Saint Helena, Ascension, and Tristan da Cunha","africa:chad":"Chad","africa:guinea":"Guinea","africa:sao-tome-and-principe":"Sao Tome and Principe","africa:algeria":"Algeria","africa:ethiopia":"Ethiopia","africa:egypt":"Egypt","africa":"Africa","africa:burkina-faso":"Burkina Faso","africa:benin":"Benin","africa:ivory-coast":"Ivory Coast","africa:niger":"Niger","africa:liberia":"Liberia","africa:south-sudan":"South Sudan","africa:angola":"Angola","africa:zimbabwe":"Zimbabwe","africa:uganda":"Uganda","africa:togo":"Togo","africa:senegal-and-gambia":"Senegal and Gambia","africa:morocco":"Morocco","africa:canary-islands":"Canary Islands","africa:mozambique":"Mozambique","africa:rwanda":"Rwanda","africa:guinea-bissau":"Guinea-Bissau","africa:libya":"Libya","africa:seychelles":"Seychelles","africa:madagascar":"Madagascar","africa:tanzania":"Tanzania","africa:sierra-leone":"Sierra Leone","africa:namibia":"Namibia","africa:tunisia":"Tunisia","africa:zambia":"Zambia","africa:mali":"Mali","africa:equatorial-guinea":"Equatorial Guinea","africa:congo-democratic-republic":"Congo (Democratic Republic/Kinshasa)","africa:malawi":"Malawi","africa:south-africa":"South Africa","africa:comores":"Comores","africa:sudan":"Sudan","africa:central-african-republic":"Central African Republic","africa:nigeria":"Nigeria","africa:djibouti":"Djibouti","central-america:panama":"Panama","central-america:cuba":"Cuba","central-america:honduras":"Honduras","central-america:belize":"Belize","central-america:costa-rica":"Costa Rica","central-america":"Central America","central-america:haiti-and-domrep":"Haiti and Dominican Republic","central-america:guatemala":"Guatemala","central-america:bahamas":"Bahamas","central-america:el-salvador":"El Salvador","central-america:jamaica":"Jamaica","central-america:nicaragua":"Nicaragua","north-america:us-pacific":"US Pacific","north-america:mexico":"Mexico","north-america:greenland":"Greenland","north-america:us-midwest":"US Midwest","north-america":"North America","north-america:us-northeast":"US Northeast","north-america:us:mississippi":"Mississippi","north-america:us:arkansas":"Arkansas","north-america:us:virginia":"Virginia","north-america:us:connecticut":"Connecticut","north-america:us:oregon":"Oregon","north-america:us:utah":"Utah","north-america:us:louisiana":"Louisiana","north-america:us:north-dakota":"North Dakota","north-america:us:us-virgin-islands":"United States Virgin Islands","north-america:us:new-hampshire":"New Hampshire","north-america:us:hawaii":"Hawaii","north-america:us:georgia":"Georgia","north-america:us:indiana":"Indiana","north-america:us:illinois":"Illinois","north-america:us:idaho":"Idaho","north-america:us:arizona":"Arizona","north-america:us:south-carolina":"South 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District","russia:crimean-fed-district":"Crimean Federal District"},"default_instance_selected":false,"lang":"en","maxLength":60,"data":[0,1,8,85,123,163,191,459,481,305,344,437,417,381,412,297,407,319,226,156,118,212,110,80,88,86,66,68,36,48,25,28,21,8,18,18,15,12,4,5,3,4,5,6,1,2,2,1,0,0,1]} </script> <script> function generate_instance_list(path, type) { var level = -1; var ul = ""; var sel = ""; Object.keys(context.instances).sort().forEach(slug => { if (slug.startsWith("north-america:us-")) return; var pretty = context.instances[slug]; var lt = pretty.indexOf("<"); if (lt>0) pretty=pretty.substr(0,lt); var new_level = (slug.match(/:/g)||[]).length if (new_level > level) { ul += '<ul>'.repeat(new_level - level); } else if (new_level < level) { ul += '</ul>'.repeat(level - new_level); } ul += '<li><a href="/' + slug + path + '">' + pretty + '</a></li>'; level = new_level; sel += "<option "; if (slug == context.instance) sel += "selected "; sel += "value=\"" + slug + "\">" + " ".repeat(level+1); if (level==0) sel += "<u>"; sel += pretty; if (level==0) sel += "</u>"; sel += "</option>"; }); if (level>0) ul += '</ul>'.repeat(level); return (type == 'ul') ? ul : sel; } </script> <script type="text/javascript" src="/js/taginfo.js"></script> <script type="text/javascript" src="/js/en/texts.js"></script> <script type="text/javascript" src="/js/pages/reports/key_lengths.js"></script> <script type="text/javascript" src="/js/d3/d3.min.js"></script></head> <body> <div id="tooltip"></div> <div id="menu-button-wrapper"> <div id="menu-button"></div> </div> <header> <div id="header_logo"> <a href="/"><img width="49" height="49" src="/img/logo/geofabrik.png" alt="taginfo"/></a> <a href="/"><img width="129" height="49" src="/img/logo/taginfo.png" alt="taginfo"/></a> <span id="header_instance"> <a href="/asia:vietnam/" id="instance">Vietnam</a> </span> </div> <div id="header_date" title="Last update of taginfo database" data-tooltip-position="OnLeft">Data from: 2024-11-28 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<option value="ru">Русский</option> <option value="uk">Українська</option> <option value="fa">فارسی</option> <option value="ja">日本語</option> <option value="ko">한국어</option> </select> </form> <form id="search_form" action="/asia:vietnam/search"> <input type="text" id="search" name="q" value="" autocomplete="off" autocapitalize="off"/> <div id="suggestions"></div> </form> </div> </header> <nav> <ul id="menu" class="no-print"> <li><a href="/asia:vietnam/keys">Keys</a></li> <li><a href="/asia:vietnam/tags">Tags</a></li> <li><a href="/asia:vietnam/relations">Relations</a></li> <li><a href="/asia:vietnam/projects">Projects</a></li> <li><a class="selected" href="/asia:vietnam/reports">Reports</a></li> <li><a href="/asia:vietnam/sources">Sources</a></li> <li><a href="/asia:vietnam/about">About</a></li> </ul> </nav> <main> <div class="section_title"> <a class="section" href="/reports">Reports</a> </div> <div> <h1>Key lengths</h1> <p>Tag keys can be between 0 and 255 (Unicode) characters long. 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