                         type  max_depth</span></span>
<span><span class="co">#   &lt;chr&gt;                          &lt;chr&gt;     &lt;dbl&gt;</span></span>
<span><span class="co"># 1 http://vosonlab.net            ext           2</span></span>
<span><span class="co"># 2 https://www.oii.ox.ac.uk       ext           2</span></span>
<span><span class="co"># 3 https://sonic.northwestern.edu ext           2</span></span>
<span></span>
<span><span class="va">collect_web</span> <span class="op">&lt;-</span> <