diff --git a/blacklist b/blacklist
index b84d973..f748859 100644
--- a/blacklist
+++ b/blacklist
@@ -1,4 +1,4 @@
-Can be username and IP
+Can be username and IP and referer
 username
 0.0.0.0
 175.180.108.110
diff --git a/routes/all.js b/routes/all.js
index 2765d7a..9df5e1c 100644
--- a/routes/all.js
+++ b/routes/all.js
@@ -3,9 +3,9 @@ var blank = require('../tools/blank');
 
 module.exports = function (req, res, next) {
 
-    if (blank(req.headers.host)) {
-        logger.info(`Reject POST form ${req.headers.host} for black host.`);
-        res.send(`{"code": -6, "msg": "Rejected for black host."}`);
+    if (req.headers.referer && blank(req.headers.referer)) {
+        logger.info(`Reject POST form ${req.headers.referer} for black referer.`);
+        res.send(`{"code": -6, "msg": "Rejected for black referer."}`);
         return;
     }
     
diff --git a/tools/blank.js b/tools/blank.js
index a517232..8c0be5a 100644
--- a/tools/blank.js
+++ b/tools/blank.js
@@ -2,5 +2,10 @@ var fs = require('fs');
 var blanklist = fs.readFileSync('blacklist').toString().split('\n');
 
 module.exports = function (text) {
-    return blanklist.indexOf(text.split(',')[0]) !== -1;
+    for (var i = 0; i < blanklist.length; i++) {
+        if (new RegExp(blanklist[i]).test(text)) {
+            return true;
+        }
+    }
+    return false;
 }
\ No newline at end of file