"所謂 UA(User Agent / 用戶代理),最初是指瀏覽器告知網站管理員,本瀏覽器支持的類型和框架,讓網站管理員以支持的模式結構向瀏覽器發送頁面,呈現給用戶瀏覽。演變到今天,網站管理員爲了給用戶帶呈現最佳的頁面效果,爲了使不一樣瀏覽器展示一樣的網站頁面,經過瀏覽器獲取用戶的系統信息,包括硬件平臺、系統軟件、應用軟件和用戶我的偏好,而後經過服務器解析後以適合用戶的頁面類型發送到瀏覽器。
python
Python UA庫
# 安裝 pip install fake-useragent# 使用 from fake_useragent import UserAgent ua = UserAgent() # 隨機谷歌UA chrome = ua.Chrome # 隨機IE的UA ie = ua.ie # 隨機火狐UA firefox = ua.Firefox # 隨機瀏覽器的UA firefox = ua.random # 忽略大小寫的,好比:ua.ie可寫成ua.IE # 若是實例化時出現報錯,可嘗試以幾種方式實例化: # ua = UserAgent(use_cache_server=False) # ua = UserAgent(cache=False) # ua = UserAgent(verify_ssl=False)
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.87 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.87 Safari/537.36 OPR/37.0.2178.32
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.87 Safari/537.36 OPR/37.0.2178.32
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534.57.2 (KHTML, like Gecko) Version/5.1.7 Safari/534.57.2
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Safari/537.36 Edge/13.10586
Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0)
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 BIDUBrowser/8.3 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Maxthon/4.9.2.1000 Chrome/39.0.2146.0 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36 Core/1.47.277.400 QQBrowser/9.4.7658.400
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 UBrowser/5.6.12150.8 Safari/537.36
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.122 Safari/537.36 SE 2.X MetaSr 1.0
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.154 Safari/537.36 LBBROWSER
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36 TheWorld 7
Mozilla/5.0 (Linux; Android 5.0; SM-N9100 Build/LRX21V) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/37.0.0.0 Mobile Safari/537.36 V1_AND_SQ_5.3.1_196_YYB_D QQ/5.3.1.2335 NetType/WIFI
Mozilla/5.0 (Linux; Android 5.0; SM-N9100 Build/LRX21V) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/37.0.0.0 Mobile Safari/537.36 MicroMessenger/6.0.2.56_r958800.520 NetType/WIFI
Mozilla/5.0 (iPhone; CPU iPhone OS 7_1_2 like Mac OS X) AppleWebKit/537.51.2 (KHTML, like Gecko) Mobile/11D257 QQ/5.2.1.302 NetType/WIFI Mem/28
Mozilla/5.0 (iPhone; CPU iPhone OS 7_1_2 like Mac OS X) AppleWebKit/537.51.2 (KHTML, like Gecko) Mobile/11D257 MicroMessenger/6.0.1 NetType/WIFI
"chrome