de></li>
                                        <li><span>Referer</span>: <code>%http_referer%</code></li>
                                        <li><span>Request Time (s)</span>: <code>%request_time%</code></li>
                                        <li><span>Upstream Response Time (s)</span>:
                                            <code>%upstream_response_time%</code>
                                        </li>
                                        <li><span>User Agent</span>: <code>%http_us