diff --git a/gettags.py b/gettags.py
index c7b459a..e5ec250 100644
--- a/gettags.py
+++ b/gettags.py
@@ -1,24 +1,17 @@
 from bs4 import BeautifulSoup
 import requests
-import fake_useragent
 import json
 import yaml
 
 
 URL = "https://nhentai.net/tags/"
-ua = fake_useragent.UserAgent()
-useragent = ua.random
 
-with open('set.yaml', 'r') as f:
-    cookie = yaml.load(f, Loader=yaml.CLoader)["cookid"]
-    if cookie == "":
-        print("Please edit set.yaml")
-        exit()
-def wtfcloudflare(url,method="get",data=None):
+
+def wtfcloudflare(url, method="get", useragent=None, cookie=None, data=None):
     session = requests.Session()
     session.headers = {
         'Referer': "https://nhentai.net/login/",
-        'User-Agent': "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36",
+        'User-Agent': useragent,
         'Cookie': cookie,
         'Accept-Language': 'en-US,en;q=0.9',
         'Accept-Encoding': 'gzip, deflate, br',
@@ -26,15 +19,23 @@ def wtfcloudflare(url,method="get",data=None):
     if method == "get":
         r = session.get(url)
     elif method == "post":
-        r = session.post(url,data=data)
+        r = session.post(url, data=data)
     return r
 
+
 def get_tags():
+    with open('set.yaml', 'r') as f:
+        cookie = yaml.load(f, Loader=yaml.CLoader)["cookid"]
+        useragent = yaml.load(f, Loader=yaml.CLoader)["useragent"]
+        if cookie == "":
+            print("Please edit set.yaml")
+            exit()
     now = 1
     tagjson = {}
 
     while True:
-        data = wtfcloudflare(f"{URL}?page={now}")
+        data = wtfcloudflare(f"{URL}?page={now}",
+                             useragent=useragent, cookie=cookie)
         soup = BeautifulSoup(data.text, 'html.parser')
         print(data.text)
         tags = soup.find_all("a", class_='tag')
@@ -49,6 +50,9 @@ def get_tags():
         for i in enumerate(tagnumber):
             tagjson[i[1]] = tagnames[i[0]]
         now += 1
+    if tagjson == {}:
+        print("something wrong with your cookie or useragent")
+        exit()
     with open('tag.json', 'w') as f:
         json.dump(tagjson, f)
     return
diff --git a/nfavorites.py b/nfavorites.py
index f194c1d..feb67dc 100644
--- a/nfavorites.py
+++ b/nfavorites.py
@@ -3,22 +3,22 @@ from progress.spinner import PixelSpinner
 from bs4 import BeautifulSoup
 import yaml
 import requests
-import fake_useragent
 import locale
 import os
 import json
 import csv
-import gevent.monkey
-gevent.monkey.patch_all()
+
 
 if not os.path.isfile("set.yaml"):
     with open('set.yaml', 'w') as f:
-        yaml.dump({"cookid": ""}, f)
+        yaml.dump({"cookid": "", "useragent": ""}, f)
     print("Please edit set.yaml")
     exit()
 
 with open('set.yaml', 'r') as f:
-    cookie = yaml.load(f, Loader=yaml.CLoader)["cookid"]
+    data = yaml.load(f, Loader=yaml.CLoader)
+    cookie = data["cookid"]
+    useragent = data["useragent"]
     if cookie == "":
         print("Please edit set.yaml")
         exit()
@@ -32,8 +32,6 @@ now = 1
 allnumbers = []
 allnames = []
 alltags = []
-ua = fake_useragent.UserAgent()
-useragent = ua.random
 locate = locale.getdefaultlocale()[0]
 if locate == "zh_TW":
     language = {
@@ -41,6 +39,7 @@ if locate == "zh_TW":
         "nodata2": "抓取完畢",
         "usedata": "使用離線資料",
         "getdata": "抓取資料中...",
+        "403": "403 錯誤，可能被 cloudflare 阻擋，請檢查 cookie 是否正確",
     }
 else:
     language = {
@@ -48,8 +47,10 @@ else:
         "nodata2": "Done",
         "usedata": "Use offline data",
         "getdata": "Getting data...",
+        "403": "403 error, maby block by cloudflare , please check if the cookie is correct",
     }
 
+
 def banner():
     data = """            _           _        _         ___  _         
  _ __   ___| |__  _ __ | |_ __ _(_)       / __\/_\/\   /\ 
@@ -60,11 +61,13 @@ def banner():
     print(data)
 
 # request
-def wtfcloudflare(url,method="get",data=None):
+
+
+def wtfcloudflare(url, method="get", data=None):
     session = requests.Session()
     session.headers = {
         'Referer': "https://nhentai.net/login/",
-        'User-Agent': "",
+        'User-Agent': useragent,
         'Cookie': cookie,
         'Accept-Language': 'en-US,en;q=0.9',
         'Accept-Encoding': 'gzip, deflate, br',
@@ -72,9 +75,20 @@ def wtfcloudflare(url,method="get",data=None):
     if method == "get":
         r = session.get(url)
     elif method == "post":
-        r = session.post(url,data=data)
+        r = session.post(url, data=data)
     return r
 
+
+def check_pass():
+    res = wtfcloudflare("https://nhentai.net/")
+    if res.status_code == 403:
+        print(language["403"])
+        exit()
+
+
+# --- main ---
+banner()
+check_pass()
 if not os.path.isfile("tag.json"):
     print(language["nodata"])
     get_tags()
@@ -102,7 +116,6 @@ while True:
     spinner.next()
 
 
-
 with open('tag.json', 'r') as f:
     tagjson = json.load(f)
 for i in enumerate(allnumbers):
@@ -114,7 +127,6 @@ for i in enumerate(allnumbers):
     table.append([i[1], allnames[i[0]], tagstr])
 
 
-
 with open('output.csv', 'w', newline='', encoding="utf_8_sig") as csvfile:
     writer = csv.writer(csvfile)
     writer.writerows(table)