Does DNS directly affect network speed, and is there any relationship between DNS and network speed?

It will affect the speed of the Internet.

Each IP address can have a hostname, which consists of one or more strings, separated by a decimal point. With a hostname, don't memorize the IP address of each IP device, just remember the hostname that is relatively intuitive and meaningful. That's what the DNS protocol is meant to accomplish.

DNS1) static mapping, each device is configured with host-to-IP address mapping, and each device maintains its own mapping table independently, and it is only used by the device;

2) Dynamic mapping, establish a set of domain name resolution system (DNS), only configure the mapping of the host to the IP address on the dedicated DNS server, and the equipment that needs to use the host name to communicate on the network first needs to query the IP address corresponding to the host on the DNS server.

The process of obtaining the IP address corresponding to the hostname is called domain name resolution (or hostname resolution). When resolving a domain name, you can first use the static domain name resolution method, and if the static domain name resolution is unsuccessful, then use the dynamic domain name resolution method. You can put some commonly used domain names into a static DNS table, which can greatly improve the efficiency of DNS resolution.

Upstairs is not practical, generally by the server automatic allocation of DNS, no one will be willing to go far, the principle of DNS is to find their own set of DNS, and then the DNS server automatically find the root server, and then level by level to find, not by a DNS to find, there are 13 root servers in the world, all to find on it, generally with the server to allocate their own better, he is the closest to you.

I think DNS will affect the speed of the internet a little bit, if you are in Beijing and you are using a DNS server in Africa, then it will definitely be slower than using a DNS server in Beijing.

DNS servers are used exclusively to resolve domain names. Yangfan420's reply is wrong, the DNS server is not fixed, the network I am using now has problems with the DNS server for more than 1 week, and I have now changed to a Hong Kong DNS server as usual. And if the DNS server is broken, it doesn't mean that the network can't be used, if you know the IP address you want to use, you can still use it.

The DNS is fixed, and if it's not right, you can't get online.

Of course! Use this! It works in person.

The choice of DNS has nothing to do with the speed of the network, but it has to do with the speed of response.

1. The DNS provided by the ISP is certainly the most responsive, but not necessarily the most comprehensive.

2. If you want to open the web page, you must provide as many DNS services as possible.

3. While using the DNS provided by the ISP, it is best to add the public DNS to it, and the address is and.

Yes, the DNS server is slow, and there will be various problems such as lag when playing games or watching dramas, and it will be better to optimize the DNS network speed.

At present, the fastest DNS in China is recognized as 114DNS, Ali DNS, DNS, DNS faction, and OneDNS.

2. Ali DNS

DNS address: . Ali DNS is a DNS service launched by Alibaba in 2014, and the homepage of Ali DNS is stable, extremely fast and intelligent.

3、 dns

4. DNS faction.

Unicom: Preferred: .

DNS faction aims to provide users with a high-speed, stable and secure Internet environment, although there may not be as many people who know DNS faction as DNS and Ali DNS, but the reputation of DNS faction is still good.

5、onedns

OneDNS Home: South: North:. Only shouting onedns is still in contact with it quite early, but it's not using their dns but hosts.

You can use 360 Security Guard to set up, open 360 Security Guard, enter the function encyclopedia, and find the "DNS Preferred" tool to set it.