diff --git a/app/filter.py b/app/filter.py
index 3e7e77b..00d51d9 100644
--- a/app/filter.py
+++ b/app/filter.py
@@ -140,18 +140,23 @@ class Filter:
     def remove_block_titles(self) -> None:
         if not self.main_divs:
             return
-
+        if self.config.block_title == '':
+            return
+        block_title = re.compile(self.config.block_title)
         for div in [_ for _ in self.main_divs.find_all('div', recursive=True)]:
             block_divs = [_ for _ in div.find_all('h3', recursive=True)
-                          if self.config.block_title.search(_.text) is not None]
+                          if block_title.search(_.text) is not None]
             _ = div.decompose() if len(block_divs) else None
 
     def remove_block_url(self) -> None:
         if not self.main_divs:
             return
+        if self.config.block_url == '':
+            return
+        block_url = re.compile(self.config.block_url)
         for div in [_ for _ in self.main_divs.find_all('div', recursive=True)]:
             block_divs = [_ for _ in div.find_all('a', recursive=True)
-                          if self.config.block_url.search(_.attrs['href']) is not None]
+                          if block_url.search(_.attrs['href']) is not None]
             _ = div.decompose() if len(block_divs) else None
 
     def collapse_sections(self) -> None:
diff --git a/app/models/config.py b/app/models/config.py
index cd58aff..1902009 100644
--- a/app/models/config.py
+++ b/app/models/config.py
@@ -15,8 +15,8 @@ class Config:
             open(os.path.join(app_config['STATIC_FOLDER'],
                               'css/variables.css')).read())
         self.block = os.getenv('WHOOGLE_CONFIG_BLOCK', '')
-        self.block_title = re.compile(os.getenv('WHOOGLE_CONFIG_BLOCK_TITLE', '^$'))
-        self.block_url = re.compile(os.getenv('WHOOGLE_CONFIG_BLOCK_URL', '^$'))
+        self.block_title = os.getenv('WHOOGLE_CONFIG_BLOCK_TITLE', '')
+        self.block_url = os.getenv('WHOOGLE_CONFIG_BLOCK_URL', '')
         self.ctry = os.getenv('WHOOGLE_CONFIG_COUNTRY', '')
         self.theme = os.getenv('WHOOGLE_CONFIG_THEME', '')
         self.safe = read_config_bool('WHOOGLE_CONFIG_SAFE')