<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">curl -A "-" <a href="https://hostname/index.php" class="">https://hostname/index.php</a></div><div class=""><br class=""></div><div class="">and</div><div class=""><br class=""></div><div class=""><div class="">curl -A "" <a href="https://hostname/index.php" class="">https://hostname/index.php</a></div></div><div class=""><br class=""></div><div class="">are logged with:</div><div class=""><br class=""></div><div class="">xxx.xxx.xxx.xxx - - [14/Sep/2017:22:47:09 +0300] "GET /index.php HTTP/1.1" 200 26039 "-" "-"</div><div class=""><br class=""></div><div class="">There is not difference if there is an empty user-agent or a user-agent with a dash.</div><div class=""><br class=""></div><div class="">Any idea it shows the empty user agents with dash?</div></body></html>