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<div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Menú principal" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Menú principal</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header 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accesskey="z"><span>Portada</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Especial:Article_aleatori" title="Carrega una pàgina a l’atzar [x]" accesskey="x"><span>Article a l'atzar</span></a></li><li id="n-Articles-de-qualitat" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Articles_de_qualitat"><span>Articles de qualitat</span></a></li> </ul> </div> </div> <div id="p-Comunitat" class="vector-menu mw-portlet mw-portlet-Comunitat" > <div class="vector-menu-heading"> Comunitat </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-portal" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Portal" title="Sobre el projecte, què podeu fer, on trobareu les coses"><span>Portal viquipedista</span></a></li><li id="n-Agenda-d'actes" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Trobades"><span>Agenda d'actes</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Especial:Canvis_recents" title="Una llista dels canvis recents al wiki [r]" accesskey="r"><span>Canvis recents</span></a></li><li id="n-La-taverna" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:La_taverna"><span>La taverna</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Contacte"><span>Contacte</span></a></li><li id="n-Xat" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Canals_IRC"><span>Xat</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Ajuda" title="El lloc per a saber més coses"><span>Ajuda</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Portada" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Viquipèdia" src="/static/images/mobile/copyright/wikipedia-wordmark-ca.svg" style="width: 7.5em; height: 1.4375em;"> <img class="mw-logo-tagline" 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class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Aparença"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Aparença" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Aparença</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ca.wikipedia.org&uselang=ca" class=""><span>Donatius</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Especial:Crea_compte&returnto=.arpa" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori" class=""><span>Crea un compte</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Especial:Registre_i_entrada&returnto=.arpa" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o" class=""><span>Inicia la sessió</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Més opcions" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Eines personals" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Eines personals</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Menú d'usuari" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ca.wikipedia.org&uselang=ca"><span>Donatius</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Especial:Crea_compte&returnto=.arpa" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Crea un compte</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Especial:Registre_i_entrada&returnto=.arpa" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Inicia la sessió</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pàgines per a editors no registrats <a href="/wiki/Ajuda:Introducci%C3%B3" aria-label="Vegeu més informació sobre l'edició"><span>més informació</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Especial:Contribucions_pr%C3%B2pies" title="Una llista de les modificacions fetes des d'aquesta adreça IP [y]" accesskey="y"><span>Contribucions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Especial:Discussi%C3%B3_personal" title="Discussió sobre les edicions per aquesta adreça ip. [n]" accesskey="n"><span>Discussió per aquest IP</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Lloc"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contingut" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contingut</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">amaga</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inici</div> </a> </li> <li id="toc-Dominis_de_segon_nivell" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Dominis_de_segon_nivell"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Dominis de segon nivell</span> </div> </a> <ul id="toc-Dominis_de_segon_nivell-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referències" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referències"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Referències</span> </div> </a> <ul id="toc-Referències-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contingut" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Commuta la taula de continguts." > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Commuta la taula de continguts.</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">.arpa</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vés a un article en una altra llengua. Disponible en 31 llengües" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-31" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">31 llengües</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/.arpa" title=".arpa - asturià" lang="ast" hreflang="ast" data-title=".arpa" data-language-autonym="Asturianu" data-language-local-name="asturià" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/.arpa" title=".arpa - belarús" lang="be" hreflang="be" data-title=".arpa" data-language-autonym="Беларуская" data-language-local-name="belarús" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/.%E0%A6%8F%E0%A6%86%E0%A6%B0%E0%A6%AA%E0%A6%BF%E0%A6%8F" title=".এআরপিএ - bengalí" lang="bn" hreflang="bn" data-title=".এআরপিএ" data-language-autonym="বাংলা" data-language-local-name="bengalí" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ce mw-list-item"><a href="https://ce.wikipedia.org/wiki/.arpa" title=".arpa - txetxè" lang="ce" hreflang="ce" data-title=".arpa" data-language-autonym="Нохчийн" data-language-local-name="txetxè" class="interlanguage-link-target"><span>Нохчийн</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/.arpa" title=".arpa - txec" lang="cs" hreflang="cs" data-title=".arpa" data-language-autonym="Čeština" data-language-local-name="txec" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/.arpa" title=".arpa - danès" lang="da" hreflang="da" data-title=".arpa" data-language-autonym="Dansk" data-language-local-name="danès" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/.arpa" title=".arpa - alemany" lang="de" hreflang="de" data-title=".arpa" data-language-autonym="Deutsch" data-language-local-name="alemany" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/.arpa" title=".arpa - Zazaki" lang="diq" hreflang="diq" data-title=".arpa" data-language-autonym="Zazaki" data-language-local-name="Zazaki" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-eml mw-list-item"><a href="https://eml.wikipedia.org/wiki/.arpa" title=".arpa - Emiliano-Romagnolo" lang="egl" hreflang="egl" data-title=".arpa" data-language-autonym="Emiliàn e rumagnòl" data-language-local-name="Emiliano-Romagnolo" class="interlanguage-link-target"><span>Emiliàn e rumagnòl</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/.arpa" title=".arpa - anglès" lang="en" hreflang="en" data-title=".arpa" data-language-autonym="English" data-language-local-name="anglès" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/.arpa" title=".arpa - esperanto" lang="eo" hreflang="eo" data-title=".arpa" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/.arpa" title=".arpa - espanyol" lang="es" hreflang="es" data-title=".arpa" data-language-autonym="Español" data-language-local-name="espanyol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/.arpa" title=".arpa - persa" lang="fa" hreflang="fa" data-title=".arpa" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/.arpa" title=".arpa - francès" lang="fr" hreflang="fr" data-title=".arpa" data-language-autonym="Français" data-language-local-name="francès" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/.arpa" title=".arpa - hongarès" lang="hu" hreflang="hu" data-title=".arpa" data-language-autonym="Magyar" data-language-local-name="hongarès" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/.arpa" title=".arpa - armeni" lang="hy" hreflang="hy" data-title=".arpa" data-language-autonym="Հայերեն" data-language-local-name="armeni" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/.arpa" title=".arpa - italià" lang="it" hreflang="it" data-title=".arpa" data-language-autonym="Italiano" data-language-local-name="italià" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/.arpa" title=".arpa - japonès" lang="ja" hreflang="ja" data-title=".arpa" data-language-autonym="日本語" data-language-local-name="japonès" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/.arpa" title=".arpa - coreà" lang="ko" hreflang="ko" data-title=".arpa" data-language-autonym="한국어" data-language-local-name="coreà" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-mzn mw-list-item"><a href="https://mzn.wikipedia.org/wiki/.arpa" title=".arpa - mazanderani" lang="mzn" hreflang="mzn" data-title=".arpa" data-language-autonym="مازِرونی" data-language-local-name="mazanderani" class="interlanguage-link-target"><span>مازِرونی</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/.arpa" title=".arpa - neerlandès" lang="nl" hreflang="nl" data-title=".arpa" data-language-autonym="Nederlands" data-language-local-name="neerlandès" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/.arpa" title=".arpa - noruec bokmål" lang="nb" hreflang="nb" data-title=".arpa" data-language-autonym="Norsk bokmål" data-language-local-name="noruec bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/.arpa" title=".arpa - occità" lang="oc" hreflang="oc" data-title=".arpa" data-language-autonym="Occitan" data-language-local-name="occità" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/.arpa" title=".arpa - polonès" lang="pl" hreflang="pl" data-title=".arpa" data-language-autonym="Polski" data-language-local-name="polonès" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/.arpa" title=".arpa - portuguès" lang="pt" hreflang="pt" data-title=".arpa" data-language-autonym="Português" data-language-local-name="portuguès" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/.arpa" title=".arpa - rus" lang="ru" hreflang="ru" data-title=".arpa" data-language-autonym="Русский" data-language-local-name="rus" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/.arpa" title=".arpa - iacut" lang="sah" hreflang="sah" data-title=".arpa" data-language-autonym="Саха тыла" data-language-local-name="iacut" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/.arpa" title=".arpa - suec" lang="sv" hreflang="sv" data-title=".arpa" data-language-autonym="Svenska" data-language-local-name="suec" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/.arpa" title=".arpa - turc" lang="tr" hreflang="tr" data-title=".arpa" data-language-autonym="Türkçe" data-language-local-name="turc" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/.arpa" title=".arpa - ucraïnès" lang="uk" hreflang="uk" data-title=".arpa" data-language-autonym="Українська" data-language-local-name="ucraïnès" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/.arpa" title=".arpa - xinès" lang="zh" hreflang="zh" data-title=".arpa" data-language-autonym="中文" data-language-local-name="xinès" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q158966#sitelinks-wikipedia" title="Modifica enllaços interlingües" class="wbc-editpage">Modifica els enllaços</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Espais de noms"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/.arpa" title="Vegeu el contingut de la pàgina [c]" accesskey="c"><span>Pàgina</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Discussi%C3%B3:.arpa&action=edit&redlink=1" rel="discussion" class="new" title="Discussió sobre el contingut d'aquesta pàgina (encara no existeix) [t]" accesskey="t"><span>Discussió</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Canvia la variant de llengua" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">català</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Vistes"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/.arpa"><span>Mostra</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=.arpa&action=edit" title="Modifica el codi font d'aquesta pàgina [e]" accesskey="e"><span>Modifica</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=.arpa&action=history" title="Versions antigues d'aquesta pàgina [h]" accesskey="h"><span>Mostra l'historial</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Eines de la pàgina"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Eines" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Eines</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Eines</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">amaga</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Més opcions" > <div class="vector-menu-heading"> Accions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/.arpa"><span>Mostra</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=.arpa&action=edit" title="Modifica el codi font d'aquesta pàgina [e]" accesskey="e"><span>Modifica</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=.arpa&action=history"><span>Mostra l'historial</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Especial:Enlla%C3%A7os/.arpa" title="Una llista de totes les pàgines wiki que enllacen amb aquesta [j]" accesskey="j"><span>Què hi enllaça</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Especial:Seguiment/.arpa" rel="nofollow" title="Canvis recents a pàgines enllaçades des d'aquesta pàgina [k]" accesskey="k"><span>Canvis relacionats</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Especial:P%C3%A0gines_especials" title="Llista totes les pàgines especials [q]" accesskey="q"><span>Pàgines especials</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=.arpa&oldid=31862448" title="Enllaç permanent a aquesta revisió de la pàgina"><span>Enllaç permanent</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=.arpa&action=info" title="Més informació sobre aquesta pàgina"><span>Informació de la pàgina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Especial:Citau&page=.arpa&id=31862448&wpFormIdentifier=titleform" title="Informació sobre com citar aquesta pàgina"><span>Citau aquest article</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Especial:UrlShortener&url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2F.arpa"><span>Obtén una URL abreujada</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Especial:QrCode&url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2F.arpa"><span>Descarrega el codi QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Imprimeix/exporta </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Especial:Llibre&bookcmd=book_creator&referer=.arpa"><span>Crea un llibre</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Especial:DownloadAsPdf&page=.arpa&action=show-download-screen"><span>Baixa com a PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=.arpa&printable=yes" title="Versió per a impressió d'aquesta pàgina [p]" accesskey="p"><span>Versió per a impressora</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> En altres projectes </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q158966" title="Enllaç a l'element del repositori de dades connectat [g]" accesskey="g"><span>Element a Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Eines de la pàgina"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aparença"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aparença</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">amaga</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">De la Viquipèdia, l'enciclopèdia lliure</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="ca" dir="ltr"><table class="infobox" style="font-size:90%;width:25em"><caption style="font-weight:bold;background-color: #b0d1ad"><span style="float:left;"><span typeof="mw:File"><span title="Infotaula de domini de primer nivell"><img alt="Infotaula de domini de primer nivell" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/Antu_application-vnd-google-earth-kml-black.svg/22px-Antu_application-vnd-google-earth-kml-black.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/Antu_application-vnd-google-earth-kml-black.svg/33px-Antu_application-vnd-google-earth-kml-black.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/38/Antu_application-vnd-google-earth-kml-black.svg/44px-Antu_application-vnd-google-earth-kml-black.svg.png 2x" data-file-width="512" data-file-height="512" /></span></span></span>.arpa</caption><tbody><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee; width:30%">Tipus</th><td class="infobox-data"><a href="/wiki/Domini_de_primer_nivell" title="Domini de primer nivell">domini de primer nivell</a> <span class="penicon"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q158966?uselang=ca#P31" title="Modifica el valor a Wikidata"><img alt="Modifica el valor a Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/10px-Arbcom_ru_editing.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/15px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/20px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee; width:30%">Introduït</th><td class="infobox-data">1999 <sup>(Julià)</sup> <span class="penicon"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q158966?uselang=ca#P571" title="Modifica el valor a Wikidata"><img alt="Modifica el valor a Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/10px-Arbcom_ru_editing.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/15px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/20px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee; width:30%">Organització patrocinadora</th><td class="infobox-data"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1667943" class="extiw" title="d:Special:EntityPage/Q1667943">Internet Architecture Board</a> <span class="penicon"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q158966?uselang=ca#P859" title="Modifica el valor a Wikidata"><img alt="Modifica el valor a Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/10px-Arbcom_ru_editing.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/15px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/20px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee; width:30%">Lloc web oficial</th><td class="infobox-data"><a rel="nofollow" class="external text" href="http://www.iana.org/arpa-dom/">iana.org…</a> <span class="penicon"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q158966?uselang=ca#P856" title="Modifica el valor a Wikidata"><img alt="Modifica el valor a Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/10px-Arbcom_ru_editing.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/15px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/20px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></span></td></tr></tbody></table> <p><b>.arpa</b> és un <a href="/wiki/Domini_de_primer_nivell_gen%C3%A8ric" title="Domini de primer nivell genèric">domini de primer nivell genèric</a> d'<a href="/wiki/Internet" title="Internet">Internet</a> utilitzat exclusivament per a la infraestructura d'<a href="/wiki/Internet" title="Internet">Internet</a> i administrat per <i>Internet Assigned Number Authority</i> (IANA).<sup id="cite_ref-:0_1-0" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>El domini .arpa es va establir el <a href="/wiki/1985" title="1985">1983</a> per a facilitar la transició cap als sistemes <a href="/wiki/DNS" class="mw-redirect" title="DNS">DNS</a> i després va ser eliminat.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>La xarxa <a href="/wiki/ARPANET" title="ARPANET">ARPANET</a> va ser la predecessora d'Internet creada al <a href="/wiki/Departament_de_Defensa_dels_Estats_Units" title="Departament de Defensa dels Estats Units">Departament de Defensa dels Estats Units</a> per l'<a href="/w/index.php?title=Ag%C3%A8ncia_de_Projectes_d%27Investigaci%C3%B3_Avan%C3%A7ada&action=edit&redlink=1" class="new" title="Agència de Projectes d'Investigació Avançada (encara no existeix)">Agència de Projectes d'Investigació Avançada</a> (ARPA), i quan el sistema de DNS's va començar a funcionar els dominis d'ARPANET van ser, al principi, convertits al nou sistema afegint .arpa al final.<sup id="cite_ref-:0_1-1" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Altres xarxes també van ser convertides al nou sistema usant <a href="/wiki/Domini_de_primer_nivell#Pseudo_dominis" title="Domini de primer nivell">pseudo dominis</a>, afegint al final el domini <a href="/wiki/.com" title=".com">.com</a> <a href="/wiki/.uucp" title=".uucp">.uucp</a> o <a href="/wiki/.bitnet" title=".bitnet">.bitnet</a>, tot i que aquests mai van ser afegits als dominis genèrics d'Internet. </p><p>Tanmateix, l'eliminació de .arpa una vegada haguessin servit com a domini de transició, es va comprovar que era poc pràctic perquè in-addr.arpa era utilitzada per servidors DNS inversos per a l'obtenció d'adreces IP. Per exemple l'adreça 212.30.222.56 és enviada al nom 56.222.30.212.inaddr.arpa </p><p>També es va intentar crear una nova infraestructura de <a href="/wiki/Base_de_dades" title="Base de dades">bases de dades</a> sota el domini <a href="/wiki/.int" title=".int">.int</a>, en vista a eliminar .arpa.<sup id="cite_ref-:0_1-2" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Al maig del 2000 aquest projecte va ser cancel·lat i es va decidir conservar el domini .arpa per al seu propòsit inicial i utilitzar .int per a organitzacions internacionals. </p> <div class="mw-heading mw-heading2"><h2 id="Dominis_de_segon_nivell">Dominis de segon nivell</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=.arpa&action=edit&section=1" title="Modifica la secció: Dominis de segon nivell"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>e164.arpa - ENUM lookup mapping telephone numbers into DNS</li> <li>in-addr.arpa - reverse DNS lookup per a direccions <a href="/wiki/IPv4" class="mw-redirect" title="IPv4">IPv4</a></li> <li>ip6.arpa - <a href="/wiki/Reverse_DNS_lookup" title="Reverse DNS lookup">reverse DNS lookup</a> per a direccions <a href="/wiki/IPv6" title="IPv6">IPv6</a></li> <li>uri.arpa - for dynamic discovery of <a href="/wiki/Uniform_Resource_Identifier" class="mw-redirect" title="Uniform Resource Identifier">URI</a> addressing schemes</li> <li>urn.arpa - for dynamic discovery of <a href="/w/index.php?title=URN&action=edit&redlink=1" class="new" title="URN (encara no existeix)">URN</a> addressing schemes</li></ul> <div class="mw-heading mw-heading2"><h2 id="Referències"><span id="Refer.C3.A8ncies"></span>Referències</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=.arpa&action=edit&section=2" title="Modifica la secció: Referències"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist {{#if: | references-column-count references-column-count-{{{col}}}" style="list-style-type: decimal;"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-:0-1"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:0_1-0">1,0</a></sup> <sup><a href="#cite_ref-:0_1-1">1,1</a></sup> <sup><a href="#cite_ref-:0_1-2">1,2</a></sup></span> <span class="reference-text"><span class="citation book" style="font-style:normal" id="CITEREFC.)2002"><span style="font-variant: small-caps;">C.)</span>, Communication Research Conference on Information, and Internet Policy (29th : 2001 : Washington D.. <a rel="nofollow" class="external text" href="https://books.google.cat/books?id=qPpdyIycDfMC&pg=PA38&dq=.arpa&hl=ca&sa=X&ved=2ahUKEwjGruaQgI38AhXTVaQEHUqWAyEQ6AF6BAghEAI#v=onepage&q=.arpa&f=false"><i>Communications Policy and Information Technology: Promises, Problems, Prospects</i></a> (en anglès).  MIT Press, 2002, p. 37-38. <span style="font-size:90%; white-space:nowrap;"><a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/978-0-262-03300-8" title="Especial:Fonts bibliogràfiques/978-0-262-03300-8">ISBN 978-0-262-03300-8</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Communications+Policy+and+Information+Technology%3A+Promises%2C+Problems%2C+Prospects&rft.aulast=C.%29&rft.aufirst=Communication+Research+Conference+on+Information%2C+and+Internet+Policy+%2829th+%3A+2001+%3A+Washington+D.&rft.date=2002&rft.pub=MIT+Press&rft.pages=37-38&rft.isbn=978-0-262-03300-8&rft_id=https%3A%2F%2Fbooks.google.cat%2Fbooks%3Fid%3DqPpdyIycDfMC%26pg%3DPA38%26dq%3D.arpa%26hl%3Dca%26sa%3DX%26ved%3D2ahUKEwjGruaQgI38AhXTVaQEHUqWAyEQ6AF6BAghEAI%23v%3Donepage%26q%3D.arpa%26f%3Dfalse"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><span class="citation book" style="font-style:normal" id="CITEREFBruen2015"><span style="font-variant: small-caps;">Bruen</span>, Garth O. <a rel="nofollow" class="external text" href="https://books.google.cat/books?id=cla-CgAAQBAJ&pg=PA138&dq=.arpa&hl=ca&sa=X&ved=2ahUKEwjGruaQgI38AhXTVaQEHUqWAyEQ6AF6BAgHEAI#v=onepage&q=.arpa&f=false"><i>WHOIS Running the Internet: Protocol, Policy, and Privacy</i></a> (en anglès).  John Wiley & Sons, 2015-10-02, p. 138. <span style="font-size:90%; white-space:nowrap;"><a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/978-1-118-98577-9" title="Especial:Fonts bibliogràfiques/978-1-118-98577-9">ISBN 978-1-118-98577-9</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=WHOIS+Running+the+Internet%3A+Protocol%2C+Policy%2C+and+Privacy&rft.aulast=Bruen&rft.aufirst=Garth+O.&rft.date=2015-10-02&rft.pub=John+Wiley+%26+Sons&rft.pages=138&rft.isbn=978-1-118-98577-9&rft_id=https%3A%2F%2Fbooks.google.cat%2Fbooks%3Fid%3Dcla-CgAAQBAJ%26pg%3DPA138%26dq%3D.arpa%26hl%3Dca%26sa%3DX%26ved%3D2ahUKEwjGruaQgI38AhXTVaQEHUqWAyEQ6AF6BAgHEAI%23v%3Donepage%26q%3D.arpa%26f%3Dfalse"><span style="display: none;"> </span></span></span> </li> </ol></div></div> <div role="navigation" class="navbox" aria-labelledby="Domini_de_primer_nivell_genèric" style="padding:3px"><table class="nowraplinks collapsible 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href="/wiki/Domini_de_primer_nivell_gen%C3%A8ric" title="Domini de primer nivell genèric">Domini de primer nivell genèric</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks collapsible collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style=";"><div id="Actuals" style="font-size:114%;margin:0 4em">Actuals</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:9.0em"><a href="/wiki/Domini_de_primer_nivell_gen%C3%A8ric" title="Domini de primer nivell genèric">Genèric</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=.bar&action=edit&redlink=1" class="new" title=".bar (encara no existeix)">.bar</a></li> <li><a href="/w/index.php?title=.bible&action=edit&redlink=1" class="new" title=".bible (encara no existeix)">.bible</a></li> <li><a href="/wiki/.biz" title=".biz">.biz</a></li> <li><a href="/w/index.php?title=.church&action=edit&redlink=1" class="new" title=".church (encara no existeix)">.church</a></li> <li><a href="/w/index.php?title=.club&action=edit&redlink=1" class="new" title=".club (encara no existeix)">.club</a></li> <li><a href="/w/index.php?title=.college&action=edit&redlink=1" class="new" title=".college (encara no existeix)">.college</a></li> <li><a href="/wiki/.com" title=".com">.com</a></li> <li><a href="/w/index.php?title=.design&action=edit&redlink=1" class="new" title=".design (encara no existeix)">.design</a></li> <li><a href="/w/index.php?title=.download&action=edit&redlink=1" class="new" title=".download (encara no existeix)">.download</a></li> <li><a href="/w/index.php?title=.eco&action=edit&redlink=1" class="new" title=".eco (encara no existeix)">.eco</a></li> <li><a href="/w/index.php?title=.green&action=edit&redlink=1" class="new" title=".green (encara no existeix)">.green</a></li> <li><a href="/w/index.php?title=.hiv&action=edit&redlink=1" class="new" title=".hiv (encara no existeix)">.hiv</a></li> <li><a href="/wiki/.info" title=".info">.info</a></li> <li><a href="/w/index.php?title=.kaufen&action=edit&redlink=1" class="new" title=".kaufen (encara no existeix)">.kaufen</a></li> <li><a href="/w/index.php?title=.kiwi&action=edit&redlink=1" class="new" title=".kiwi (encara no existeix)">.kiwi</a></li> <li><a href="/wiki/.lat" title=".lat">.lat</a></li> <li><a href="/w/index.php?title=.lgbt&action=edit&redlink=1" class="new" title=".lgbt (encara no existeix)">.lgbt</a></li> <li><a href="/w/index.php?title=.moe&action=edit&redlink=1" class="new" title=".moe (encara no existeix)">.moe</a></li> <li><a href="/wiki/.name" title=".name">.name</a></li> <li><a href="/wiki/.net" title=".net">.net</a></li> <li><a href="/w/index.php?title=.ninja&action=edit&redlink=1" class="new" title=".ninja (encara no existeix)">.ninja</a></li> <li><a href="/w/index.php?title=.NGO_and_.ONG&action=edit&redlink=1" class="new" title=".NGO and .ONG (encara no existeix)">.ngo</a></li> <li><a href="/w/index.php?title=.one_(domain)&action=edit&redlink=1" class="new" title=".one (domain) (encara no existeix)">.one</a></li> <li><a href="/w/index.php?title=.NGO_and_.ONG&action=edit&redlink=1" class="new" title=".NGO and .ONG (encara no existeix)">.ong</a></li> <li><a href="/w/index.php?title=.OOO&action=edit&redlink=1" class="new" title=".OOO (encara no existeix)">.OOO</a></li> <li><a href="/wiki/.org" title=".org">.org</a></li> <li><a href="/wiki/.pro" title=".pro">.pro</a></li> <li><a href="/w/index.php?title=.wiki&action=edit&redlink=1" class="new" title=".wiki (encara no existeix)">.wiki</a></li> <li><a href="/wiki/.wtf" title=".wtf">.wtf</a></li> <li><a href="/wiki/.xyz" title=".xyz">.xyz</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:9.0em"><a href="/wiki/Domini_de_primer_nivell_patrocinat" title="Domini de primer nivell patrocinat">Patrocinats</a></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/.aero" title=".aero">.aero</a></li> <li><a href="/wiki/.asia" title=".asia">.asia</a></li> <li><a href="/wiki/.cat" title=".cat">.cat</a></li> <li><a href="/wiki/.coop" title=".coop">.coop</a></li> <li><a href="/wiki/.edu" title=".edu">.edu</a></li> <li><a href="/wiki/.eus" title=".eus">.eus</a></li> <li><a href="/w/index.php?title=.google&action=edit&redlink=1" class="new" title=".google (encara no existeix)">.google</a></li> <li><a href="/wiki/.gov" title=".gov">.gov</a></li> <li><a href="/wiki/.int" title=".int">.int</a></li> <li><a href="/wiki/.jobs" title=".jobs">.jobs</a></li> <li><a href="/wiki/.mil" title=".mil">.mil</a></li> <li><a href="/wiki/.mobi" title=".mobi">.mobi</a></li> <li><a href="/wiki/.museum" title=".museum">.museum</a></li> <li><a href="/wiki/.post" title=".post">.post</a></li> <li><a href="/wiki/.tel" title=".tel">.tel</a></li> <li><a href="/wiki/.travel" title=".travel">.travel</a></li> <li><a href="/wiki/.xxx" title=".xxx">.xxx</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:9.0em"><a href="/w/index.php?title=GeoTLD&action=edit&redlink=1" class="new" title="GeoTLD (encara no existeix)">Geogràfic</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=.africa&action=edit&redlink=1" class="new" title=".africa (encara no existeix)">.africa</a></li> <li><a href="/w/index.php?title=.alsace&action=edit&redlink=1" class="new" title=".alsace (encara no existeix)">.alsace</a></li> <li><a href="/w/index.php?title=.amsterdam&action=edit&redlink=1" class="new" title=".amsterdam (encara no existeix)">.amsterdam</a></li> <li><a href="/wiki/.berlin" title=".berlin">.berlin</a></li> <li><a href="/w/index.php?title=.brussels&action=edit&redlink=1" class="new" title=".brussels (encara no existeix)">.brussels</a></li> <li><a href="/wiki/.bzh" title=".bzh">.bzh</a></li> <li><a href="/w/index.php?title=.cymru&action=edit&redlink=1" class="new" title=".cymru (encara no existeix)">.cymru</a></li> <li><a href="/w/index.php?title=.frl&action=edit&redlink=1" class="new" title=".frl (encara no existeix)">.frl</a></li> <li><a href="/wiki/.gal" title=".gal">.gal</a></li> <li><a href="/w/index.php?title=.gent&action=edit&redlink=1" class="new" title=".gent (encara no existeix)">.gent</a></li> <li><a href="/w/index.php?title=.irish&action=edit&redlink=1" class="new" title=".irish (encara no existeix)">.irish</a></li> <li><a href="/w/index.php?title=.ist&action=edit&redlink=1" class="new" title=".ist (encara no existeix)">.ist</a></li> <li><a href="/w/index.php?title=.istanbul&action=edit&redlink=1" class="new" title=".istanbul (encara no existeix)">.istanbul</a></li> <li><a href="/w/index.php?title=.kiwi&action=edit&redlink=1" class="new" title=".kiwi (encara no existeix)">.kiwi</a></li> <li><a href="/wiki/.krd" title=".krd">.krd</a></li> <li><a href="/w/index.php?title=.london&action=edit&redlink=1" class="new" title=".london (encara no existeix)">.london</a></li> <li><a href="/w/index.php?title=.miami&action=edit&redlink=1" class="new" title=".miami (encara no existeix)">.miami</a></li> <li><a href="/wiki/.nyc" title=".nyc">.nyc</a></li> <li><a href="/wiki/.paris" title=".paris">.paris</a></li> <li><a href="/w/index.php?title=.quebec&action=edit&redlink=1" class="new" title=".quebec (encara no existeix)">.quebec</a></li> <li><a href="/w/index.php?title=.rio&action=edit&redlink=1" class="new" title=".rio (encara no existeix)">.rio</a></li> <li><a href="/w/index.php?title=.saarland&action=edit&redlink=1" class="new" title=".saarland (encara no existeix)">.saarland</a></li> <li><a href="/wiki/.scot" title=".scot">.scot</a></li> <li><a href="/w/index.php?title=.tokyo&action=edit&redlink=1" class="new" title=".tokyo (encara no existeix)">.tokyo</a></li> <li><a href="/w/index.php?title=.vlaanderen&action=edit&redlink=1" class="new" title=".vlaanderen (encara no existeix)">.vlaanderen</a></li> <li><a href="/wiki/.wales" title=".wales">.wales</a></li> <li><a href="/w/index.php?title=.wien&action=edit&redlink=1" class="new" title=".wien (encara no existeix)">.wien</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:9.0em">Infraestructura</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a class="mw-selflink selflink">.arpa</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:9.0em">Esborrat/retirat</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/.nato" title=".nato">.nato</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:9.0em"><a href="/wiki/Domini_de_primer_nivell#Dominis_de_primer_nivell_reservats" title="Domini de primer nivell">Reservats</a></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/.example" title=".example">.example</a></li> <li><a href="/wiki/.invalid" title=".invalid">.invalid</a></li> <li><a href="/wiki/.local" title=".local">.local</a></li> <li><a href="/wiki/.localhost" title=".localhost">.localhost</a></li> <li><a href="/wiki/.onion" title=".onion">.onion</a></li> <li><a href="/wiki/.test" title=".test">.test</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks collapsible collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style=";"><div id="Proposats" style="font-size:114%;margin:0 4em"><a href="/w/index.php?title=Domini_de_primer_nivell_proposats&action=edit&redlink=1" class="new" title="Domini de primer nivell proposats (encara no existeix)">Proposats</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:9.0em"><a href="/w/index.php?title=GeoTLD&action=edit&redlink=1" class="new" title="GeoTLD (encara no existeix)">Ubicacions</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=.africa&action=edit&redlink=1" class="new" title=".africa (encara no existeix)">.africa</a></li> <li><a href="/wiki/.bcn" title=".bcn">.bcn</a></li> <li><a href="/wiki/.lat" title=".lat">.lat</a></li> <li><a href="/wiki/.%D0%B1%D0%B3" title=".бг">.бг</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:9.0em">Llengua i<br />nacionalitat</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=.eng&action=edit&redlink=1" class="new" title=".eng (encara no existeix)">.eng</a></li> <li><a href="/w/index.php?title=.sic&action=edit&redlink=1" class="new" title=".sic (encara no existeix)">.sic</a></li> <li><a href="/wiki/.%D0%B1%D0%B3" title=".бг">.бг</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:9.0em">Tècnic</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/.geo" title=".geo">.geo</a></li> <li><a href="/wiki/.mail" title=".mail">.mail</a></li> <li><a href="/wiki/.web" title=".web">.web</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:9.0em">Negocis</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=.shop&action=edit&redlink=1" class="new" title=".shop (encara no existeix)">.shop</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:9.0em">Altres</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=.art&action=edit&redlink=1" class="new" title=".art (encara no existeix)">.art</a></li> <li><a href="/w/index.php?title=.eco&action=edit&redlink=1" class="new" title=".eco (encara no existeix)">.eco</a></li> <li><a href="/w/index.php?title=.kid&action=edit&redlink=1" class="new" title=".kid (encara no existeix)">.kid</a></li> <li><a href="/w/index.php?title=.kids&action=edit&redlink=1" class="new" title=".kids (encara no existeix)">.kids</a></li> <li><a href="/w/index.php?title=.music&action=edit&redlink=1" class="new" title=".music (encara no existeix)">.music</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><a href="/wiki/Llista_de_dominis_de_primer_nivell_territorial" title="Llista de dominis de primer nivell territorial">Llista de dominis de primer nivell territorial</a></div></td></tr></tbody></table></div> <p><span style="display: none;" class="interProject"><a href="https://ca.wiktionary.org/wiki/arpa" class="extiw" title="wikt:arpa">Viccionari</a></span> </p>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Obtingut de «<a dir="ltr" href="https://ca.wikipedia.org/w/index.php?title=.arpa&oldid=31862448">https://ca.wikipedia.org/w/index.php?title=.arpa&oldid=31862448</a>»</div></div> <div 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