diff --git a/archivebox/archive_methods.py b/archivebox/archive_methods.py
index b2f04f33..6fd08d0e 100644
--- a/archivebox/archive_methods.py
+++ b/archivebox/archive_methods.py
@@ -30,6 +30,8 @@ from config import (
     OUTPUT_DIR,
     GIT_DOMAINS,
     GIT_SHA,
+    RESTRICT_FILE_NAMES,
+    CURL_USER_AGENT,
     WGET_USER_AGENT,
     CHECK_SSL_VALIDITY,
     COOKIES_FILE,
@@ -226,7 +228,7 @@ def fetch_wget(link_dir, link, timeout=TIMEOUT):
         '--span-hosts',
         '--no-parent',
         '-e', 'robots=off',
-        '--restrict-file-names=windows',
+        *(('--restrict-file-names={}'.format(RESTRICT_FILE_NAMES),) if RESTRICT_FILE_NAMES else ()),
         '--timeout={}'.format(timeout),
         *(('--compression=auto',) if WGET_AUTO_COMPRESSION else ()),
         *(() if FETCH_WARC else ('--timestamping',)),
@@ -561,7 +563,7 @@ def archive_dot_org(link_dir, link, timeout=TIMEOUT):
         CURL_BINARY,
         '--location',
         '--head',
-        '--user-agent', 'ArchiveBox/{} (+https://github.com/pirate/ArchiveBox/)'.format(GIT_SHA),  # be nice to the Archive.org people and show them where all this ArchiveBox traffic is coming from
+	*(('--user-agent', '{}'.format(CURL_USER_AGENT),) if CURL_USER_AGENT else ()),  # be nice to the Archive.org people and show them where all this ArchiveBox traffic is coming from
         '--max-time', str(timeout),
         *(() if CHECK_SSL_VALIDITY else ('--insecure',)),
         submit_url,
diff --git a/archivebox/config.py b/archivebox/config.py
index 47f1776f..f4907a30 100644
--- a/archivebox/config.py
+++ b/archivebox/config.py
@@ -34,7 +34,9 @@ SUBMIT_ARCHIVE_DOT_ORG = os.getenv('SUBMIT_ARCHIVE_DOT_ORG', 'True'
 
 CHECK_SSL_VALIDITY =     os.getenv('CHECK_SSL_VALIDITY',     'True'             ).lower() == 'true'
 RESOLUTION =             os.getenv('RESOLUTION',             '1440,2000'        )
+RESTRICT_FILE_NAMES =    os.getenv('RESTRICT_FILE_NAMES',    'windows'        )
 GIT_DOMAINS =            os.getenv('GIT_DOMAINS',            'github.com,bitbucket.org,gitlab.com').split(',')
+CURL_USER_AGENT =        os.getenv('CURL_USER_AGENT',        'ArchiveBox/{GIT_SHA} (+https://github.com/pirate/ArchiveBox/)')
 WGET_USER_AGENT =        os.getenv('WGET_USER_AGENT',        'ArchiveBox/{GIT_SHA} (+https://github.com/pirate/ArchiveBox/) wget/{WGET_VERSION}')
 COOKIES_FILE =           os.getenv('COOKIES_FILE',           None)
 CHROME_USER_DATA_DIR =   os.getenv('CHROME_USER_DATA_DIR',   None)
@@ -192,13 +194,15 @@ try:
         raise
 
     ### Make sure curl is installed
-    if FETCH_FAVICON or SUBMIT_ARCHIVE_DOT_ORG:
+    if FETCH_FAVICON or FETCH_TITLE or SUBMIT_ARCHIVE_DOT_ORG:
         if run(['which', CURL_BINARY], stdout=DEVNULL, stderr=DEVNULL).returncode or run([CURL_BINARY, '--version'], stdout=DEVNULL, stderr=DEVNULL).returncode:
             print('{red}[X] Missing dependency: curl{reset}'.format(**ANSI))
             print('    Install it, then confirm it works with: {} --version'.format(CURL_BINARY))
             print('    See https://github.com/pirate/ArchiveBox/wiki/Install for help.')
             raise SystemExit(1)
 
+        CURL_USER_AGENT = CURL_USER_AGENT.format(GIT_SHA=GIT_SHA[:9])
+
     ### Make sure wget is installed and calculate version
     if FETCH_WGET or FETCH_WARC:
         if run(['which', WGET_BINARY], stdout=DEVNULL, stderr=DEVNULL).returncode or run([WGET_BINARY, '--version'], stdout=DEVNULL, stderr=DEVNULL).returncode:
diff --git a/etc/ArchiveBox.conf.default b/etc/ArchiveBox.conf.default
index dcb8aeac..a48ee8e2 100644
--- a/etc/ArchiveBox.conf.default
+++ b/etc/ArchiveBox.conf.default
@@ -39,7 +39,9 @@
 
 #CHECK_SSL_VALIDITY=True
 #FETCH_WGET_REQUISITES=True
+#RESTRICT_FILE_NAMES="windows"
 #RESOLUTION="1440,900"
+#CURL_USER_AGENT="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36"
 #WGET_USER_AGENT="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36"
 #CHROME_USER_AGENT="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36"
 #GIT_DOMAINS="github.com,bitbucket.org,gitlab.com"