diff --git a/dispatcher/backend/src/common/schemas/fields.py b/dispatcher/backend/src/common/schemas/fields.py
index 876ada4c..f3c909b0 100644
--- a/dispatcher/backend/src/common/schemas/fields.py
+++ b/dispatcher/backend/src/common/schemas/fields.py
@@ -47,6 +47,7 @@ def validate_schedule_name(value) -> bool:
     regex=r"^(.+?_)([a-z\-]{2,3}?_)(.+_|)([\d]{4}-[\d]{2}|{period}).zim$",
     error="ZIM filename format is incorrect",
 )
+validate_zim_title = validate.Length(max=30)
 validate_zim_description = validate.Length(max=80)
 validate_zim_longdescription = validate.Length(max=4000)
 
diff --git a/dispatcher/backend/src/common/schemas/offliners/devdocs.py b/dispatcher/backend/src/common/schemas/offliners/devdocs.py
index 3e0734d1..163cf772 100644
--- a/dispatcher/backend/src/common/schemas/offliners/devdocs.py
+++ b/dispatcher/backend/src/common/schemas/offliners/devdocs.py
@@ -5,6 +5,7 @@
     validate_output,
     validate_zim_description,
     validate_zim_longdescription,
+    validate_zim_title,
 )
 
 
@@ -73,6 +74,7 @@ class Meta:
             "to `{full_name} Docs`",
         },
         data_key="title-format",
+        validate=validate_zim_title,
     )
 
     description_format = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/freecodecamp.py b/dispatcher/backend/src/common/schemas/offliners/freecodecamp.py
index 2f398e9b..1af7481a 100644
--- a/dispatcher/backend/src/common/schemas/offliners/freecodecamp.py
+++ b/dispatcher/backend/src/common/schemas/offliners/freecodecamp.py
@@ -6,6 +6,7 @@
     validate_zim_description,
     validate_zim_filename,
     validate_zim_longdescription,
+    validate_zim_title,
 )
 
 FCC_LANG_MAP = {
@@ -59,6 +60,7 @@ class Meta:
             "description": "ZIM title",
         },
         required=True,
+        validate=validate_zim_title,
     )
 
     description = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/gutenberg.py b/dispatcher/backend/src/common/schemas/offliners/gutenberg.py
index 363d0beb..00099d18 100644
--- a/dispatcher/backend/src/common/schemas/offliners/gutenberg.py
+++ b/dispatcher/backend/src/common/schemas/offliners/gutenberg.py
@@ -1,7 +1,7 @@
 from marshmallow import fields
 
 from common.schemas import SerializableSchema, String
-from common.schemas.fields import validate_zim_description
+from common.schemas.fields import validate_zim_description, validate_zim_title
 
 
 class GutenbergFlagsSchema(SerializableSchema):
@@ -34,6 +34,7 @@ class Meta:
             "description": "Custom title for your project and ZIM.",
         },
         data_key="zim-title",
+        validate=validate_zim_title,
     )
 
     zim_desc = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/ifixit.py b/dispatcher/backend/src/common/schemas/offliners/ifixit.py
index 8719ec19..867aa1d6 100644
--- a/dispatcher/backend/src/common/schemas/offliners/ifixit.py
+++ b/dispatcher/backend/src/common/schemas/offliners/ifixit.py
@@ -5,6 +5,7 @@
     validate_output,
     validate_zim_description,
     validate_zim_filename,
+    validate_zim_title,
 )
 
 
@@ -38,6 +39,7 @@ class Meta:
             "description": "Custom title for your ZIM. "
             "iFixIt homepage title otherwise",
         },
+        validate=validate_zim_title,
     )
 
     description = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/kolibri.py b/dispatcher/backend/src/common/schemas/offliners/kolibri.py
index fef7cc7e..0fce189b 100644
--- a/dispatcher/backend/src/common/schemas/offliners/kolibri.py
+++ b/dispatcher/backend/src/common/schemas/offliners/kolibri.py
@@ -6,6 +6,7 @@
     validate_zim_description,
     validate_zim_filename,
     validate_zim_longdescription,
+    validate_zim_title,
 )
 
 
@@ -52,7 +53,8 @@ class Meta:
         metadata={
             "label": "Title",
             "description": "Custom title for your ZIM. Kolibri channel name otherwise",
-        }
+        },
+        validate=validate_zim_title,
     )
 
     description = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/mwoffliner.py b/dispatcher/backend/src/common/schemas/offliners/mwoffliner.py
index 7a756295..a4f17d07 100644
--- a/dispatcher/backend/src/common/schemas/offliners/mwoffliner.py
+++ b/dispatcher/backend/src/common/schemas/offliners/mwoffliner.py
@@ -11,6 +11,7 @@
     validate_output,
     validate_zim_description,
     validate_zim_longdescription,
+    validate_zim_title,
 )
 
 
@@ -59,7 +60,8 @@ class Meta:
         metadata={
             "label": "ZIM Title",
             "description": "Custom ZIM title. Wiki name otherwise.",
-        }
+        },
+        validate=validate_zim_title,
     )
     customZimDescription = String(
         metadata={"label": "ZIM Description", "description": "Max length is 80 chars"},
diff --git a/dispatcher/backend/src/common/schemas/offliners/nautilus.py b/dispatcher/backend/src/common/schemas/offliners/nautilus.py
index 19e24220..dbc5ca1a 100644
--- a/dispatcher/backend/src/common/schemas/offliners/nautilus.py
+++ b/dispatcher/backend/src/common/schemas/offliners/nautilus.py
@@ -5,6 +5,7 @@
     validate_output,
     validate_zim_description,
     validate_zim_filename,
+    validate_zim_title,
 )
 
 
@@ -98,7 +99,8 @@ class Meta:
         metadata={
             "label": "Title",
             "description": "Title for your project and ZIM. Otherwise --name.",
-        }
+        },
+        validate=validate_zim_title,
     )
     description = String(
         metadata={
diff --git a/dispatcher/backend/src/common/schemas/offliners/openedx.py b/dispatcher/backend/src/common/schemas/offliners/openedx.py
index a19a02cd..1f54fffb 100644
--- a/dispatcher/backend/src/common/schemas/offliners/openedx.py
+++ b/dispatcher/backend/src/common/schemas/offliners/openedx.py
@@ -5,6 +5,7 @@
     validate_output,
     validate_zim_description,
     validate_zim_filename,
+    validate_zim_title,
 )
 
 
@@ -174,6 +175,7 @@ class Meta:
             "description": "Custom title for your ZIM. Based on MOOC otherwise",
         },
         data_key="title",
+        validate=validate_zim_title,
     )
 
     description = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/sotoki.py b/dispatcher/backend/src/common/schemas/offliners/sotoki.py
index 29496c8e..aae10124 100644
--- a/dispatcher/backend/src/common/schemas/offliners/sotoki.py
+++ b/dispatcher/backend/src/common/schemas/offliners/sotoki.py
@@ -5,6 +5,7 @@
     validate_output,
     validate_zim_description,
     validate_zim_filename,
+    validate_zim_title,
 )
 
 
@@ -33,6 +34,7 @@ class Meta:
             "label": "Title",
             "description": "Custom title for your ZIM. Site name otherwise",
         },
+        validate=validate_zim_title,
     )
 
     description = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/ted.py b/dispatcher/backend/src/common/schemas/offliners/ted.py
index 7bc17ef6..be1aba88 100644
--- a/dispatcher/backend/src/common/schemas/offliners/ted.py
+++ b/dispatcher/backend/src/common/schemas/offliners/ted.py
@@ -6,6 +6,7 @@
     validate_zim_description,
     validate_zim_filename,
     validate_zim_longdescription,
+    validate_zim_title,
 )
 
 
@@ -111,7 +112,8 @@ class Meta:
         metadata={
             "label": "Title",
             "description": "Custom title for your ZIM. Based on selection otherwise",
-        }
+        },
+        validate=validate_zim_title,
     )
 
     description = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/wikihow.py b/dispatcher/backend/src/common/schemas/offliners/wikihow.py
index 0e128436..48687562 100644
--- a/dispatcher/backend/src/common/schemas/offliners/wikihow.py
+++ b/dispatcher/backend/src/common/schemas/offliners/wikihow.py
@@ -5,6 +5,7 @@
     validate_output,
     validate_zim_description,
     validate_zim_filename,
+    validate_zim_title,
 )
 
 
@@ -34,6 +35,7 @@ class Meta:
             "description": "Custom title for your ZIM. "
             "Wikihow homepage title otherwise",
         },
+        validate=validate_zim_title,
     )
 
     description = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/youtube.py b/dispatcher/backend/src/common/schemas/offliners/youtube.py
index 00cc3a33..b4f9f565 100644
--- a/dispatcher/backend/src/common/schemas/offliners/youtube.py
+++ b/dispatcher/backend/src/common/schemas/offliners/youtube.py
@@ -6,6 +6,7 @@
     validate_zim_description,
     validate_zim_filename,
     validate_zim_longdescription,
+    validate_zim_title,
 )
 
 
@@ -85,7 +86,8 @@ class Meta:
             "label": "ZIM Title",
             "description": "Custom title for your ZIM. "
             "Default to Channel name (of first video if playlists)",
-        }
+        },
+        validate=validate_zim_title,
     )
 
     description = String(
diff --git a/dispatcher/backend/src/common/schemas/offliners/zimit.py b/dispatcher/backend/src/common/schemas/offliners/zimit.py
index 07ed9003..c7686a5f 100644
--- a/dispatcher/backend/src/common/schemas/offliners/zimit.py
+++ b/dispatcher/backend/src/common/schemas/offliners/zimit.py
@@ -5,6 +5,7 @@
     validate_output,
     validate_zim_description,
     validate_zim_filename,
+    validate_zim_title,
 )
 
 # https://github.com/puppeteer/puppeteer/blob/main/src/common/DeviceDescriptors.ts
@@ -175,7 +176,8 @@ class Meta:
         metadata={
             "label": "Title",
             "description": "Custom title for ZIM. Defaults to title of main page",
-        }
+        },
+        validate=validate_zim_title,
     )
 
     description = String(