http://go.com 8.8.8.8 http://example.com/ http://httpforever.com/ http://neverssl.com
ref - https://medium.com/@galolbardes/learn-how-easy-is-to-bypass-firewalls-using-dns-tunneling-and-also-how-to-block-it-3ed652f4a000
ref - https://www.reddit.com/r/YouShouldKnow/comments/cqss1b/ysk_if_you_cant_open_the_login_page_for_a_public/
origin - https://www.pipiscrew.com/?p=15220 if-you-cant-open-the-login-page-for-a-public-wifi-type-8-8-8-8-in-the-browser-to-force-the-login-page-to-open