Schematic depiction of the domain name hierarchy.
<a href="//commons.wikimedia.org/wiki/User_talk:TilmannR" title="User talk:TilmannR">TilmannR</a>
Own work based on:<br><span style="color:#69F">✦ </span><a href="//commons.wikimedia.org/wiki/File:Dns-raum.svg" class="image"><img alt="Dns-raum.svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Dns-raum.svg/64px-Dns-raum.svg.png" decoding="async" width="64" height="34" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Dns-raum.svg/96px-Dns-raum.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Dns-raum.svg/128px-Dns-raum.svg.png 2x" data-file-width="1066" data-file-height="572"></a><a href="//commons.wikimedia.org/wiki/File:Dns-raum.svg" title="File:Dns-raum.svg">Dns-raum.svg</a> <i>by</i> <a href="//commons.wikimedia.org/wiki/User:Hank_van_Helvete~commonswiki" title="User:Hank van Helvete~commonswiki">Hank van Helvete</a><br><span style="color:#69F">✦ </span><a href="//commons.wikimedia.org/wiki/File:DNS-names-ru.svg" class="image"><img alt="DNS-names-ru.svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cb/DNS-names-ru.svg/64px-DNS-names-ru.svg.png" decoding="async" width="64" height="36" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cb/DNS-names-ru.svg/96px-DNS-names-ru.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/cb/DNS-names-ru.svg/128px-DNS-names-ru.svg.png 2x" data-file-width="1073" data-file-height="596"></a><a href="//commons.wikimedia.org/wiki/File:DNS-names-ru.svg" title="File:DNS-names-ru.svg">DNS-names-ru.svg</a> <i>by</i> <a href="//commons.wikimedia.org/wiki/User:George_Shuklin" title="User:George Shuklin">George Shuklin</a>