I had same confusion for a second but the html does clear it up: yes, it means you don't have the thing.

   <li class="...">
     <div class="...">
       <div class="..."></div>
     </div>
     <span class="text-sm">Residential Proxy</span>
     <span class="sr-only">Not detected</span>
   </li>

I pinged the web team, they will work on something to make this more legible. (Edit: they have started work on this; if you have any other feedback, please let me know) — Abdullah | DevRel, IPinfo