diff --git a/library/Local/CrawlerDetect.php b/library/Local/CrawlerDetect.php
index a3aff3f72..69a599c4d 100644
--- a/library/Local/CrawlerDetect.php
+++ b/library/Local/CrawlerDetect.php
@@ -1,114 +1,116 @@
 <?php
 /**
  *  ocs-webserver
  *
  *  Copyright 2016 by pling GmbH.
  *
  *    This file is part of ocs-webserver.
  *
  *    This program is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU Affero General Public License as
  *    published by the Free Software Foundation, either version 3 of the
  *    License, or (at your option) any later version.
  *
  *    This program is distributed in the hope that it will be useful,
  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *    GNU Affero General Public License for more details.
  *
  *    You should have received a copy of the GNU Affero General Public License
  *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  **/
 
 /** crawler detection
  * @param $USER_AGENT
  * @return bool
  */
 function crawlerDetect($USER_AGENT)
 {
     // If the user agent is empty, we assume that it is not a bot.
     if (empty($USER_AGENT)) {
         return false;
     }
 
     $crawlers = array(
         array('Googlebot', 'Googlebot'),
         array('MSN', 'MSN'),
         array('msnbot-media', 'MSN'),
         array('bingbot', 'MSN'),
         array('MegaIndex.ru' , 'MegaIndex.ru'),
         array('Baiduspider', 'Baiduspider'),
         array('YandexBot', 'YandexBot'),
-        array('AhrefsBot', 'ahrefs.com/robot'),
+        array('AhrefsBot', 'Mozilla/5.0 (compatible; AhrefsBot/6.1; +http://ahrefs.com/robot/)'),
         array('ltx71', 'ltx71'),
         array('msnbot', 'MSN'),
         array('Rambler', 'Rambler'),
         array('Yahoo', 'Yahoo'),
         array('AbachoBOT', 'AbachoBOT'),
         array('accoona', 'Accoona'),
         array('AcoiRobot', 'AcoiRobot'),
         array('ASPSeek', 'ASPSeek'),
         array('CrocCrawler', 'CrocCrawler'),
         array('Dumbot', 'Dumbot'),
         array('FAST-WebCrawler', 'FAST-WebCrawler'),
         array('GeonaBot', 'GeonaBot'),
         array('Gigabot', 'Gigabot'),
         array('Lycos', 'Lycos spider'),
         array('MSRBOT', 'MSRBOT'),
         array('Scooter', 'Altavista robot'),
         array('AltaVista', 'Altavista robot'),
         array('IDBot', 'ID-Search Bot'),
         array('eStyle', 'eStyle Bot'),
         array('Scrubby', 'Scrubby robot'),
-        array('MJ12bot','http://mj12bot.com/'),
+        array('MJ12bot','Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)'),
         array('SemrushBot', 'SemrushBot'),
         array('bingbot','bingbot'),
         array('DotBot','http://www.opensiteexplorer.org/dotbot'),
         array('SEOkicks','https://www.seokicks.de/robot.html'),
         array('CCBot','CCBot/2.0 (https://commoncrawl.org/faq/)'),
         array('Sogou','Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)'),
         array('Bytespider','Bytespider;https://zhanzhang.toutiao.com/'),
         array('BLEXBot','BLEXBot/1.0; +http://webmeup-crawler.com/'),
         array('Applebot','Applebot/0.1; +http://www.apple.com/go/applebot'),
         array('serpstatbot','serpstatbot/1.0 (advanced backlink tracking bot; curl/7.58.0; http://serpstatbot.com/; abuse@serpstatbot.com)'),
         array('Linespider','Linespider/1.1;+https://lin.ee/4dwXkTH'),
         array('Yeti','Yeti/1.1; +http://naver.me/spd'),
         array('Feedspot','Feedspot/1.0 (+https://www.feedspot.com/fs/fetcher; like FeedFetcher-Google)'),
         array('fantastic_search_engine_crawler','fantastic_search_engine_crawler/2.0 (Linux) fantastic-crawler@umich.edu'),
         array('Qwantify','Qwantify/Bleriot/1.1; +https://help.qwant.com/bot'),
         array('coccocbot','coccocbot-web/1.0; +http://help.coccoc.com/searchengine'),
         array('nagios-plugins','check_http/v2.2.1 (nagios-plugins 2.2.1)'),
         array('urlwatch','urlwatch/2.17 (+https://thp.io/2008/urlwatch/info.html)'),
         array('Buck','Buck/2.2; (+https://app.hypefactors.com/media-monitoring/about.html)'),
         array('Anitya','Anitya 0.17.2 at release-monitoring.org'),
         array('MauiBot','MauiBot (crawler.feedback+dc@gmail.com)'),
         array('istellabot','istellabot/t.1.13'),
         array('SeznamBot','Mozilla/5.0 (compatible; SeznamBot/3.2-test1; +http://napoveda.seznam.cz/en/seznambot-intro/)'),
         array('TelegramBot','TelegramBot (like TwitterBot)'),
         array('Synapse','Synapse/1.0.0'),
         array('VelenPublicWebCrawler','Mozilla/5.0 (compatible; VelenPublicWebCrawler/1.0; +https://velen.io)'),
         array('MagiBot','Mozilla/5.0 (compatible; MagiBot/1.0.0; Matarael; +https://magi.com/bots)'),
         array('linkfluence','Mozilla/5.0 (compatible; YaK/1.0; http://linkfluence.com/; bot@linkfluence.com)'),
         array('repology','repology-linkchecker/1 (+https://repology.org/bots)'),
         array('yacybot','Mozilla/5.0 (compatible; yacybot/1.921/custom +https://searx.everdot.org/about)'),
         array('facebookexternalhit','facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)'),
         array('ZoominfoBot','ZoominfoBot (zoominfobot at zoominfo dot com)'),
         array('curl','curl/7.66.0'),
         array('ZoomBot','ZoomBot (Linkbot 1.0 http://suite.seozoom.it/bot.html)'),
         array('PaperLiBot','Mozilla/5.0 (compatible; PaperLiBot/2.1; https://support.paper.li/entries/20023257-what-is-paper-li)'),
         array('python-requests','python-requests/2.22.0'),
         array('Cliqzbot','Mozilla/5.0 (compatible; Cliqzbot/3.0; +http://cliqz.com/company/cliqzbot)'),
         array('YisouSpider','YisouSpider'),
-        array('trendictionbot','Mozilla/5.0 (Windows NT 10.0; Win64; x64; trendictionbot0.5.0; trendiction search; http://www.trendiction.de/bot; please let us know of any problems; web at trendiction.com) Gecko/20170101 Firefox/67.0')
+        array('trendictionbot','Mozilla/5.0 (Windows NT 10.0; Win64; x64; trendictionbot0.5.0; trendiction search; http://www.trendiction.de/bot; please let us know of any problems; web at trendiction.com) Gecko/20170101 Firefox/67.0'),
+        array('Seekport','Mozilla/5.0 (compatible; Seekport Crawler; http://seekport.com/)'),
+        array('GarlikCrawler','GarlikCrawler/1.2 (http://garlik.com/, crawler@garlik.com)')
     );
 
     foreach ($crawlers as $c)
     {
         if (stristr($USER_AGENT, $c[0]))
         {
             return true;
         }
     }
 
     return false;
 }