diff --git a/README.md b/README.md
index 94ef8db36..77d503cdf 100644
--- a/README.md
+++ b/README.md
@@ -109,6 +109,14 @@ worksheet = sh.add_worksheet(title="A worksheet", rows="100", cols="20")
 sh.del_worksheet(worksheet)
 ```
 
+### Protecting / Unprotecting a Worksheet
+
+```python
+worksheet.protect()
+# Run your code without risk from other users (apart from the sheet owner!)
+worksheet.unprotect()
+```
+
 ### Getting a Cell Value
 
 ```python
diff --git a/gspread/worksheet.py b/gspread/worksheet.py
index 606b71a31..2b7080b26 100644
--- a/gspread/worksheet.py
+++ b/gspread/worksheet.py
@@ -1910,6 +1910,7 @@ def add_protected_range(
         description=None,
         warning_only=False,
         requesting_user_can_edit=False,
+        domain_users_can_edit=False,
     ):
         """Add protected range to the sheet. Only the editors can edit
         the protected range.
@@ -1962,6 +1963,7 @@ def add_protected_range(
                             "editors": {
                                 "users": editor_users_emails,
                                 "groups": editor_groups_emails,
+                                "domainUsersCanEdit": domain_users_can_edit,
                             },
                         }
                     }
@@ -2964,3 +2966,26 @@ def cut_range(
         }
 
         return self.spreadsheet.batch_update(body)
+
+    def column_count(self):
+        """Full English alias for .col_count"""
+        return self.col_count()
+
+    def list_protected_ranges(self):
+        """List protected ranges in current Worksheet"""
+        return self.spreadsheet.list_protected_ranges(self.id)
+
+    def protect(self):
+        """Protect all ranges in current Worksheet"""
+        email = get_email_from_somewhere_tbd()  # TODO ?
+        last_cell = rowcol_to_a1(self.row_count, self.col_count)
+        self.add_protected_range(
+            f"A1:{last_cell}",
+            email,
+            description="LOCKED by gspread user",
+        )
+
+    def unprotect(self):
+        """Unprotect all ranges in current Worksheet"""
+        for range in self.list_protected_ranges():
+            self.delete_protected_range(range)