diff --git a/HACKING.md b/HACKING.md
index 1be8fc3..5c0b525 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -203,3 +203,26 @@ CSRF_COOKIE_HTTPONLY = True
 # security.W019
 X_FRAME_OPTIONS = 'DENY'
 ```
+
+## Validation subdomain in eepsite
+
+Uncomment in `project/urls.py`
+
+```python
+from django.urls import path
+from . import views
+
+urlpatterns = [
+    path('', views.home, name="home"),
+    path('filename', views.i2pfile, name='i2pfile') # eepsite
+]
+```
+
+also `project/views.py`
+
+```python
+def i2pfile(request):
+    return render(request, 'trabajo/filename')
+```
+
+and add `project/templates/trabajo/filename`
diff --git a/project/urls.py b/project/urls.py
index d38d3d9..52e75fe 100644
--- a/project/urls.py
+++ b/project/urls.py
@@ -3,4 +3,5 @@ from . import views
 
 urlpatterns = [
     path('', views.home, name="home"),
+    # path('filename', views.i2pfile, name='i2pfile'),
 ]
diff --git a/project/views.py b/project/views.py
index 7e8a958..d4d7f93 100644
--- a/project/views.py
+++ b/project/views.py
@@ -39,3 +39,7 @@ def home(request):
 
     return render(request, 'trabajo/index.djhtml',
                   {'projects': projects, 'form': contact_form})
+
+
+# def i2pfile(request):
+#     return render(request, 'trabajo/filename')