Did you know that when visiting any website on the Internet, your browser may send a list of plugins, extensions, battery, method of connection to the Internet, not to mention the OS version and browser.
Below you can check what information about you available to sites outside.

Server information (То что сервер получает от браузера при каждом запросе)
HTTP_ACCEPT_ENCODINGx-gzip, gzip, deflate
HTTP_USER_AGENTCCBot/2.0 (http://commoncrawl.org/faq/)
HTTP_CONTENT_TYPE
HTTP_ACCEPTtext/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_IF_MODIFIED_SINCEThu, 24 May 2018 21:48:23 GMT
HTTP_HOSTen.sanstv.ru
HTTP_CONNECTIONclose
HTTP_CONTENT_LENGTH
REMOTE_ADDR54.81.254.212
REMOTE_PORT37914
Client information (То что доступно ява скриптам)
Local IPnot found