diff --git a/archivebox/config.py b/archivebox/config.py
index ec970a22..0d49a5d2 100644
--- a/archivebox/config.py
+++ b/archivebox/config.py
@@ -47,7 +47,7 @@ WGET_BINARY =            os.getenv('WGET_BINARY',            'wget')
 YOUTUBEDL_BINARY =       os.getenv('YOUTUBEDL_BINARY',       'youtube-dl')
 CHROME_BINARY =          os.getenv('CHROME_BINARY',          None)
 
-URL_BLACKLIST =          os.getenv('URL_BLACKLIST',          '.*youtube.com.*,.*facebook.com/.*,.*.exe')
+URL_BLACKLIST =          os.getenv('URL_BLACKLIST',          None)
 
 try:
     OUTPUT_DIR = os.path.abspath(os.getenv('OUTPUT_DIR'))
@@ -76,6 +76,8 @@ USE_CHROME = FETCH_PDF or FETCH_SCREENSHOT or FETCH_DOM
 USE_WGET = FETCH_WGET or FETCH_WGET_REQUISITES or FETCH_WARC
 WGET_AUTO_COMPRESSION = USE_WGET and WGET_BINARY and (not run([WGET_BINARY, "--compression=auto", "--help"], stdout=DEVNULL).returncode)
 
+URL_BLACKLIST = URL_BLACKLIST and re.compile(URL_BLACKLIST, re.IGNORECASE)
+
 ########################### Environment & Dependencies #########################
 
 try:
@@ -268,11 +270,3 @@ except KeyboardInterrupt:
 except:
     print('[X] There was an error during the startup procedure, your archive data is unaffected.')
     raise
-
-URL_BLACKLIST = re.compile(
-    r'(.*\.youtube\.com)|'
-    r'(.*\.facebook\.com)|'
-    r'(.*\.amazon\.com)|'
-    r'(.*\.reddit\.com)',
-    re.IGNORECASE,
-    )
\ No newline at end of file