chrome/browser/resources/net_internals/dns_view.html

<!-- Host resolver info -->
<div id=dns-view-tab-content class=content-box>
  <ul style='margin-top: 0'>
    <li><a href='#events&q=type:HOST_RESOLVER_IMPL_JOB%20is:active'>View pending lookups</a></li>
  </ul>

  <div>
    <h4>Async DNS Configuration</h4>
    <ul>
      <li>Internal DNS client enabled:
        <span id=dns-view-internal-dns-enabled></span>
        <span id=dns-view-internal-dns-invalid-config class=warning-text style="display: none;">
          (No valid configuration found)</span>
      </li>
    </ul>
    <table class="styled-table">
      <tbody id=dns-view-internal-dns-config-tbody></tbody>
    </table>
  </div>

  <h4>
    Host resolver cache
    <input type=button value="Clear host cache" id=dns-view-clear-cache class="hide-when-not-capturing">
  </h4>
  <ul>
    <li>Capacity: <span id=dns-view-cache-capacity></span></li>
  </ul>
  <h4>Current State</h4>
  <ul>
    <li>Active entries: <span id=dns-view-cache-active></span></li>
    <li>Expired entries: <span id=dns-view-cache-expired></span></li>
  </ul>

  <table class="styled-table">
    <thead>
      <tr>
        <th>Hostname</th>
        <th>Family</th>
        <th>Addresses</th>
        <th>Expires</th>
      </tr>
    </thead>
    <tbody id=dns-view-cache-tbody>
    </tbody>
  </table>
</div>