Its possible but not likely. They probably have stored some data in your Adobe Flashplayer-cache.
There are several ways to identify a returning visitor:
By IP address (not reliable for security critical purposes, can changed and faked)
By Cookie
By Application data (such as flashplayer cookie or other plugins data)
By a combination of various environment variables (not really realiable but sometimes the only thing you can get)
I have also seen some sites where external sources have been loaded (images and stuff) with headers so that the users browser cached them. Then they checked whether the resourced have been requested from those external domains again.
This way they could identify a returning visitor and do something. The intention was to give him a free offer only once (because the typical users deletes cookies and changes ip adress but not cache if he/she wants some free offer again). There were also cookie and ip blocking in place.
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有可能,但可能性不大。他们可能已在您的 Adobe Flashplayer 缓存中存储了一些数据。
有多种方法可以识别回访者:
通过 IP 地址(对于安全关键目的不可靠,可以更改和伪造)
通过应用程序数据(例如 flashplayer cookie 或其他插件数据)
通过以下组合各种环境变量(并不真正可靠,但有时是您唯一可以获得的东西)
我还看到一些网站,其中外部源有已加载(图像和内容)标头,以便用户浏览器缓存它们。然后他们检查是否再次从这些外部域请求了资源。
这样他们就可以识别回访者并采取行动。目的是只给他一次免费优惠(因为典型的用户会删除 cookie 并更改 IP 地址,但如果他/她想要再次获得一些免费优惠,则不会缓存)。还有 cookie 和 ip 封锁。
您可以在 adobes 网站上在线控制/删除您的 Flash cookie。访问此链接:
http://www.macromedia.com/support/documentation/en /flashplayer/help/settings_manager07.html
Its possible but not likely. They probably have stored some data in your Adobe Flashplayer-cache.
There are several ways to identify a returning visitor:
By IP address (not reliable for security critical purposes, can changed and faked)
By Cookie
By Application data (such as flashplayer cookie or other plugins data)
By a combination of various environment variables (not really realiable but sometimes the only thing you can get)
I have also seen some sites where external sources have been loaded (images and stuff) with headers so that the users browser cached them. Then they checked whether the resourced have been requested from those external domains again.
This way they could identify a returning visitor and do something. The intention was to give him a free offer only once (because the typical users deletes cookies and changes ip adress but not cache if he/she wants some free offer again). There were also cookie and ip blocking in place.
You can control/delete your flash cookies online on adobes website. Visit this link:
http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html
不,这是因为 Flash 有一组独立的 cookie。
No, it's because Flash has an independent set of cookies.