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A brief introduction to the '.cn/.中国' domain name system.

Preface#

'.cn', the top-level domain of the Heavenly Kingdom, is the one I am currently using, https://cloud.sd.cn/
Not occasionally, but often, people think that this is a second-level domain (although technically it is indeed (
Then they ask me how I registered a domain name like "sd.cn" and why I didn't use it directly but added a prefix instead.
I explained a lot . If anyone asks about this again, they can directly throw this article at their face (perfect (*゚∇゚)

Main Text#

Reference: Ministry of Industry and Information Technology - Domain Industry Information Management Announcement - China Internet Domain System
The top-level domain in our country is '.cn (.China)' the Chinese domain name is in parentheses below
But there are also many second-level domains and Chinese top-level domains under it. In addition to the commonly seen .com.cn/.org.cn/gov.cn, there are many lesser-known domain names (of course, the prices are the same as ordinary .cn domain names)
These can be classified according to "category-geography" and "registrable-non-registrable"

  • Category-Non-registrable
    • .gov.cn (Government Affairs) Government agencies
    • .edu.cn Educational institutions
    • .mil.cn Defense agencies
  • Category-Registrable
    • .com.cn/.net.cn Too familiar, no need to explain
    • .org.cn (Public Welfare) Non-profit organizations
    • .ac.cn Research institutions (yes, this is open for registration (
  • Geography-All registrable
    • .bj.cn Beijing
    • .tj.cn Tianjin
    • .sh.cn Shanghai
    • .cq.cn Chongqing
    • .he.cn Hebei
    • .sx.cn Shanxi
    • .nm.cn Inner Mongolia
    • .ln.cn Liaoning
    • .jl.cn Jilin
    • .hl.cn Heilongjiang
    • .js.cn Jiangsu
    • .zj.cn Zhejiang
    • .ah.cn Anhui
    • .fj.cn Fujian
    • .jx.cn Jiangxi
    • .sd.cn Shandong
    • .ha.cn Henan
    • .hb.cn Hubei
    • .hn.cn Hunan
    • .gd.cn Guangdong
    • .gx.cn Guangxi
    • .hi.cn Hainan
    • .sc.cn Sichuan
    • .gz.cn Guizhou
    • .yn.cn Yunnan
    • .xz.cn Tibet
    • .sn.cn Shaanxi
    • .gs.cn Gansu
    • .qh.cn Qinghai
    • .nx.cn Ningxia
    • .xj.cn Xinjiang
    • .tw.cn Taiwan
    • .hk.cn Hong Kong
    • .mo.cn Macau

Also#

Not surprisingly, xLog recognizes it as a second-level domain (amazing)

Image
But it works (good, good, good)

Image
↑, Note: The correct filling in actuality

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