What do the www in front of the URL and the com in the back mean?

WWW is the abbreviation of World Wide Information Network (also known as "Web", "WWW", "'W3'", the full English name is "World Wide Web"), and the Chinese name is "World Wide Web"," "World Wide Web" and so on, often referred to as the Web. Divided into Web client and Web server programs. WWW allows Web clients (common browsers) to access and browse pages on the Web server.

com domain name, the most widely popular universal domain name format in the world. International companies will register com domain names. Of course, you can also choose an international domain name ending with net/org.

CN is an Internet domain name, a national top-level domain name, which represents China’s national domain name. It is officially registered and operated by my country's International Internet Network Information Center (Inter NIC). The CN domain name is the only English international top-level domain name in the world managed by China. It is the Internet logo of Chinese enterprises. It embodies a cultural identity, its own value and positioning.

The domain name suffix for industrial and commercial enterprises is generally com, the domain name suffix for creativity and innovation is generally xyz, the suffix for network providers is net?, and the suffix for group organizations is org. There is no restriction on the scope of use of domain name suffixes, and different suffixes are allocated according to different countries.

Extended information:

1. WWW adopts the client/server working mode, and the specific workflow is as follows:

1) Users use browsers or other programs Establish a connection between the client and the server and send a browsing request;

2) After receiving the request, the Web server returns information to the client;

3) The communication is completed and the connection is closed.

2. The cn domain name is managed by the China Internet Network Information Center (CNNIC). According to the latest implementation of the "China Internet Domain Name Management Measures", CNNIC has revised the existing third-level CN ??domain name registration process. Registering a third-level CN ??domain name will no longer require written registration materials, and the effective period will be shortened to 5 working days.

3. com is a general top-level domain (gTLD) on the Internet's DNS. Its name is derived from the English word "commercial", indicating the original intention of registering this domain name by a commercial organization. However, with com, org and net opening up unlimited registration, there will ultimately be no difference.

Baidu Encyclopedia-www

Baidu Encyclopedia-com

Baidu Encyclopedia-cn