Here is an excerpt of a article I found that may explain what is going on. It's a few years old, but I think it is still probably relevant.
This article was published by F18News on: 21 July 2004
CHINA: Government blocks religious websites
Chinese web-users are denied access to a range of religious sites based abroad, Forum 18 News Service has found after a two-month survey of how far the Chinese government's Golden Shield firewall, used to censor the internet, affects access to religious websites. Sites blocked include those related to the persecution of Christians and other religious faiths.
In a bid to help remove "unacceptable" content from the web, the authorities launched a website in June encouraging web-users to report such "illegal" sites, including those on religious cult activity, violence, pornography or politically sensitive subjects. The website,
http://net.china.cn/chinese/, is sponsored by the Internet Information Service Work Committee of the China Internet Association. After getting on the relevant page, which is indicated at the top of the homepage, "reporters" must provide their real name, gender, email address, telephone number, addresses, and the name and URL of the offending sites. They are then asked for details of the violations by the offending websites and the category of violations. There are eight categories, including "promoting cults" and "promoting violent superstitions". Other categories include sites that "violate constitutional principles", "attack the party and the government" and "violate social ethics (or morality)". There is one all-encompassing category called "other illegal and harmful messages". The "reporters" are assured of the confidentiality of the information they provide, but are warned that they bear personal responsibility for reporting erroneous information.
http://www.forum18.org/Archive.php?article_id=366-------------------------------------------------------------
mercy, peace and love
Kat