diff --git a/apps/participation/models.py b/apps/participation/models.py
index 034abbc..c3f3e4e 100644
--- a/apps/participation/models.py
+++ b/apps/participation/models.py
@@ -1,12 +1,11 @@
 import re
 
-from django.urls import reverse_lazy
-
 from corres2math.lists import get_sympa_client
 from django.core.exceptions import ObjectDoesNotExist
 from django.core.validators import RegexValidator
 from django.db import models
 from django.db.models import Index
+from django.urls import reverse_lazy
 from django.utils.crypto import get_random_string
 from django.utils.text import format_lazy
 from django.utils.translation import gettext_lazy as _
@@ -121,7 +120,7 @@ class Participation(models.Model):
     )
 
     def get_absolute_url(self):
-        return reverse_lazy("participation:team_detail", args=(self.pk,))
+        return reverse_lazy("participation:participation_detail", args=(self.pk,))
 
     def __str__(self):
         return _("Participation of the team {name} ({trigram})").format(name=self.team.name, trigram=self.team.trigram)
diff --git a/apps/participation/search_indexes.py b/apps/participation/search_indexes.py
index cbe54ed..2a6f88a 100644
--- a/apps/participation/search_indexes.py
+++ b/apps/participation/search_indexes.py
@@ -4,15 +4,15 @@ from .models import Participation, Team, Video
 
 
 class TeamIndex(indexes.SearchIndex, indexes.Indexable):
-    text = indexes.CharField(document=True, model_attr="name")
-    trigram = indexes.CharField(model_attr="trigram")
+    text = indexes.EdgeNgramField(document=True, model_attr="name")
+    trigram = indexes.EdgeNgramField(model_attr="trigram")
 
     def get_model(self):
         return Team
 
 
 class ParticipationIndex(indexes.SearchIndex, indexes.Indexable):
-    text = indexes.CharField(document=True, model_attr="team__trigram")
+    text = indexes.EdgeNgramField(document=True, model_attr="team__name")
 
     def get_model(self):
         return Participation
diff --git a/apps/registration/models.py b/apps/registration/models.py
index c1540db..71c890d 100644
--- a/apps/registration/models.py
+++ b/apps/registration/models.py
@@ -2,6 +2,7 @@ from corres2math.tokens import email_validation_token
 from django.contrib.sites.models import Site
 from django.db import models
 from django.template import loader
+from django.urls import reverse_lazy
 from django.utils.crypto import get_random_string
 from django.utils.encoding import force_bytes
 from django.utils.http import urlsafe_base64_encode
@@ -63,6 +64,9 @@ class Registration(PolymorphicModel):
     def is_admin(self):
         return isinstance(self, AdminRegistration) or self.user.is_superuser
 
+    def get_absolute_url(self):
+        return reverse_lazy("registration:user_detail", args=(self.user_id,))
+
     def __str__(self):
         return f"{self.user.first_name} {self.user.last_name}"
 
diff --git a/apps/registration/search_indexes.py b/apps/registration/search_indexes.py
index 73c048c..07614ed 100644
--- a/apps/registration/search_indexes.py
+++ b/apps/registration/search_indexes.py
@@ -4,10 +4,10 @@ from .models import Registration
 
 
 class RegistrationIndex(indexes.SearchIndex, indexes.Indexable):
-    text = indexes.CharField(document=True, model_attr="user__username")
-    last_name = indexes.CharField(model_attr="user__last_name")
-    first_name = indexes.CharField(model_attr="user__first_name")
-    email = indexes.CharField(model_attr="user__email")
+    text = indexes.EdgeNgramField(document=True, model_attr="user__username")
+    last_name = indexes.EdgeNgramField(model_attr="user__last_name")
+    first_name = indexes.EdgeNgramField(model_attr="user__first_name")
+    email = indexes.EdgeNgramField(model_attr="user__email")
 
     def get_model(self):
         return Registration
diff --git a/corres2math/urls.py b/corres2math/urls.py
index 45b3392..2d2cfa5 100644
--- a/corres2math/urls.py
+++ b/corres2math/urls.py
@@ -13,7 +13,6 @@ Including another URLconf
     1. Import the include() function: from django.urls import include, path
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
-from django.conf.urls.static import static
 from django.contrib import admin
 from django.urls import path, include
 from django.views.defaults import bad_request, permission_denied, page_not_found, server_error