diff --git a/plugins/pre_analysis/robots.py b/plugins/pre_analysis/robots.py
index 47036d4..dbc1148 100644
--- a/plugins/pre_analysis/robots.py
+++ b/plugins/pre_analysis/robots.py
@@ -61,7 +61,11 @@ class IWLAPreAnalysisRobots(IPlugin):
         self.awstats_robots = list(map(lambda x : re.compile(('.*%s.*') % (x), re.IGNORECASE), awstats_data.robots))
         self.robot_re = re.compile(r'.*bot.*', re.IGNORECASE)
         self.crawl_re = re.compile(r'.*crawl.*', re.IGNORECASE)
-        self.compatible_re = re.compile(r'.*\(.*compatible; (.*); \+.*\)*')
+        self.compatible_re = []
+        self.compatible_re.append(re.compile(r'.*\(.*compatible; ([^;]+);.*\).*'))
+        self.compatible_re.append(re.compile(r'.*\(.*compatible; (.*)\).*'))
+        self.compatible_re.append(re.compile(r'.*\(([^;]+); \+.*\).*'))
+        self.compatible_re.append(re.compile(r'(.*); \(\+.*\)*'))
         self.logger = logging.getLogger(self.__class__.__name__)
         self.one_hit_only = self.iwla.getConfValue('count_hit_only_visitors', False)
         self.no_referrer_domains = self.iwla.getConfValue('no_referrer_domains', [])
@@ -76,12 +80,14 @@ class IWLAPreAnalysisRobots(IPlugin):
         self.logger.debug('%s is a robot (caller %s:%d)' % (k, info.function, info.lineno))
         super_hit['robot'] = True
         super_hit['keep_requests'] = False
-        for hit in super_hit['requests']:
-            robot_name = self.compatible_re.match(hit['http_user_agent'])
+
+        agent = super_hit['requests'][0]['http_user_agent']
+        for compatible_re in self.compatible_re:
+            robot_name = compatible_re.match(agent)
             if robot_name:
                 super_hit['robot_name'] = robot_name[1]
                 break
-
+            
 # Basic rule to detect robots
     def hook(self):
         hits = self.iwla.getCurrentVisits()
@@ -101,10 +107,9 @@ class IWLAPreAnalysisRobots(IPlugin):
             referers = 0
 
             first_page = super_hit['requests'][0]
-
+                
             if self.robot_re.match(first_page['http_user_agent']) or\
-                    self.crawl_re.match(first_page['http_user_agent']) or\
-                    self.compatible_re.match(first_page['http_user_agent']):
+                    self.crawl_re.match(first_page['http_user_agent']):
                 self.logger.debug(first_page['http_user_agent'])
                 self._setRobot(k, super_hit)
                 continue
@@ -147,7 +152,8 @@ class IWLAPreAnalysisRobots(IPlugin):
 
                 # Exception for favicon.png and all apple-*icon*
                 if int(hit['status']) >= 400 and int(hit['status']) <= 499 and\
-                   'icon' not in hit['extract_request']['http_uri']:
+                   'icon' not in hit['extract_request']['http_uri'] and\
+                   hit['server_name'] != 'forge.soutade.fr':
                     error_codes += 1
                 elif int(hit['status']) in (304,):
                     not_modified_pages += 1