+<h3><a name="url">url</a></h3>
+<p>Servus now tracks URLs pasted into <span
+class="code">#chiark</span>, and will comment if you post a duplicate
+URL. The <span class="code">url</span> command provides a way for you
+to check if a URL has been posted before (if not, Servus posts it on
+your behalf). The syntax is:<br />
+<span class="code">/msg Servus url http://some.url</span><br />
+Servus will either paste the URL into channel, or <span
+class="code">/msg</span> you to tell you it was a duplicate. Although
+you can use this command in-channel (and get a response by <span
+class="code">/msg </span>), this is discouraged. Servus also
+understands <span class="code">nsfw://</span>
+and <span class="code">nsfws://</span> URLs, and knows they are an
+obfuscation of the relevant <span class="code">http://</span>
+or <span class="code">https://</span> URL for URLs that are not
+work-safe. You can make your firefox understand <span
+class="code">nsfw://</span> URLS by visiting <a
+href="http://www.chiark.greenend.org.uk/~owend/nsfw.html">http://www.chiark.greenend.org.uk/~owend/nsfw.html</a>.</p>
+