China is currently facing one of the most sophisticated internet censorship in the world which has grown enormously in scope and strength in the past decade. It now blocks many of the most popular websites. The websites of billion-dollar companies like Google and Facebook, with billions of users in the rest of the world, are dark, shuttered rooms in China.
The Great Firewall (GFW) has been deployed near the gateways of all Chinese domestic ISPs. With deep packet inspection (DPI) technology, GFW wiretaps all international links and inspects the traffic to detect any sensitive keywords going through the gateway. GFW depends mainly on three technologies to block
- “harmful” information: IP blocking
- DNS (Domain Name System) injection
- TCP RST (Reset).
Below is the list of blocked website in China
Search engines
Google, DuckDuckGo, Baidu Japan, Baidu Brazil, Yahoo Hong Kong, Yahoo Taiwan
Social media
Twitter, Facebook, Google+, Google Hangouts, Google Blogspot, WordPress.com, Line, KakaoTalk, TalkBox, selected Tumblr sites, FC2, Soundcloud, Hootsuite, Adultfriendfinder, Ustream, Twitpic, Instagram
Newspapers and media
New York Times, New York Times Chinese, Bloomberg, Bloomberg Businessweek, BBC Chinese, Chosun Chinese, WSJ, WSJ Chinese, Flipboard (international version only), Google News, YouTube, Vimeo, Dailymotion, LiveLeak, Break, Crackle, selected international Wikipedia pages, selected Chinese Wikipedia pages, Wikileaks
Redux: gagging Google
Yes, a lot of those are Google services. Let’s recap the Google blocklist in full:
Google search, Gmail, Google Drive, Google Docs, Google Play, Google Translate, Google Calendar, Google Picasa, Google Groups, Google Keep, Google Voice, Google Wallet, YouTube, Google Earth, Google Earth, Google Chrome homepage, Google Code, Google Blogspot, Google Feedburner
Work and productivity
Microsoft OneDrive, Dropbox, Slideshare, iStockPhoto, Google Drive, Google Docs, Gmail (inc Gmail’s IMAP, SMAP, and POP servers), Google Translate, Google Calendar, Google Groups, Google Keep
Online tools
Flickr, Google Play, Google Picasa, Feedburner, Twitter URL shortener, Google URL shortener, Bit.ly, Archive.org, Pastebin, Change.org, 4Shared, The Pirate Bay, OpenVPN
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