diff --git a/cspreports/admin.py b/cspreports/admin.py
index 5e5d244..7ce7e7e 100644
--- a/cspreports/admin.py
+++ b/cspreports/admin.py
@@ -1,15 +1,19 @@
 from django.contrib import admin
+from django.utils.safestring import mark_safe
 
 from cspreports.models import CSPReport
 
 
 class CSPReportAdmin(admin.ModelAdmin):
-    list_display = ('id', 'created', 'document_uri', 'blocked_uri')
+    list_display = ('id', 'created', 'document_uri', 'blocked_uri', 'is_valid')
     fields = ('created', 'modified', 'json_as_html')
     readonly_fields = ('created', 'modified', 'json_as_html')
+    search_fields = ('json',)
+    list_filter = ('is_valid',)
+    date_hierarchy = 'created'
 
     def json_as_html(self, instance):
-        return "<br />" + instance.json_as_html()
+        return mark_safe("<br />" + instance.json_as_html())
 
     def document_uri(self, instance):
         return instance.data.get('csp-report', {}).get('document-uri')
@@ -20,5 +24,11 @@ def blocked_uri(self, instance):
     json_as_html.short_description = "Report"
     json_as_html.allow_tags = True
 
+    def has_add_permission(self, request):
+        return False
+
+    def has_change_permission(self, request, obj=None):
+        return False
+
 
 admin.site.register(CSPReport, CSPReportAdmin)
diff --git a/cspreports/models.py b/cspreports/models.py
index acc2043..8083bd6 100644
--- a/cspreports/models.py
+++ b/cspreports/models.py
@@ -5,6 +5,7 @@
 from django.db import models
 from django.utils.html import escape
 from django.utils.safestring import mark_safe
+from django.utils.translation import gettext_lazy as _
 
 DISPOSITIONS = (
     ('enforce', 'enforce'),
@@ -60,6 +61,7 @@ class CSPReport(models.Model):
     """
 
     class Meta:
+        verbose_name = _('CSP report')
         ordering = ('-created',)
 
     created = models.DateTimeField(auto_now_add=True)