diff --git a/manual-check.sh b/manual-check.sh
new file mode 100755
index 0000000..a40685c
--- /dev/null
+++ b/manual-check.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+SOCKS_PROXY='socks5h://127.0.0.1:9150/'
+USER_AGENT='Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0'
+for url in "$@" ; do
+    echo ":::: $url ::::"
+    curl --head --user-agent "$USER_AGENT" --proxy "$SOCKS_PROXY" "$url" || exit $?
+done
+exit 0
diff --git a/rwos-db.py b/rwos-db.py
index 8c003ab..ac0efc7 100755
--- a/rwos-db.py
+++ b/rwos-db.py
@@ -13,7 +13,7 @@ GLOBAL_DB = None # has to be a global because pickling :-(
 MASTER_CSV = 'master.csv'
 DB_FILENAME = 'fetch.sqlite3'
 SOCKS_PROXY = 'socks5h://127.0.0.1:9150/'
-USER_AGENT = "Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0"
+USER_AGENT = 'Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0'
 BADNESS = 900
 CURL_TIMEOUT = 120
 RETRY_SLEEP = 60