Domestic and foreign DNS encyclopedia

What is DNS?

DNS, or Domain Name System, converts human-readable domain names (eg, boxpu.com) into machine-readable IP addresses (eg, 192.168.8.1).

DNS Basics

All computers on the Internet, from your smartphone or laptop to the servers that serve up content for a slew of retail websites, find each other and communicate with each other by using numbers. These numbers are called IP addresses. When you open your web browser and go to a website, you don't have to remember and type in a long number. Instead, you type in a domain name, like example.com, and end up in the right place.

The DNS service is a globally distributed service that converts human-readable names (such as http://www.example.com) into numeric IP addresses (such as 192.0.2.1) that computers use to connect to each other. The Internet's DNS system works like a phone book, managing the mapping between names and numbers. DNS servers convert name requests into IP addresses, controlling which servers end users access when they enter a domain name into a web browser. These requests are called queries.

Types of DNS Services

Authoritative DNS: An authoritative DNS service provides an update mechanism for developers to manage their public DNS names. It then responds to DNS queries, translating domain names into IP addresses so that computers can communicate with each other. Authoritative DNS has the final authority for the domain and is responsible for providing responses from recursive DNS servers with IP address information.

Recursive DNS: Clients don't usually make queries directly to an authoritative DNS service. Instead, they usually connect to another type of DNS service called a resolver, or a recursive DNS service. A recursive DNS service is like a doorman at a hotel: it doesn't have any DNS records of its own, but acts as an intermediary to get DNS information on your behalf. If the recursive DNS has a DNS reference that it has cached or stored for a while, it responds to the DNS query by providing the source or IP information. If it doesn't, it passes the query to one or more authoritative DNS servers to find the information.

Foreign DNS

1. Google Public DNS

Google Public DNS is a free domain name resolution service (DNS) provided by Google since December 5, 2009.

Google Public DNS is a free domain name resolution service launched by Google for the general public.Free DNSThe main purpose of the service is to improve web browsing speed and improve the browsing experience of web users. For this reason, Google does not use widely used DNS programs such as BIND, but instead improves DNS server technology with self-developed software. On a two-tier computer cluster, the cache DNS server balances the load to improve performance while ensuring the security and accuracy of the DNS service.

The following is the DNS address for this service:

IPv4 Address:
8.8.8.8 (google-public-dns-a.google.com)
8.8.4.4 (google-public-dns-b.google.com)
IPv6 Address:
2001:4860:4860::8888
2001:4860:4860::8844
DNS Address:
dns.google

Google's free DNS servers are often ranked as the best, they're easy to remember, and available to everyone. It even offers impressive speeds.

The main advantage of Google DNS comes from their reputation as a company. Google makes a lot of money every year and can afford to provide the most stable and resilient DNS servers. The only problem with this DNS server is that they store information about your operations, which they can share with third parties if the US government decides they need that information. However, for users who are not concerned about this issue, Google is generally considered the best DNS server.

2. Cloudflare DNS

DNS is a mission-critical component for all online businesses. Yet it is often overlooked and forgotten until something goes wrong.

Cloudflare 1.1.1.1 is the fastest and most reliable public DNS resolver in the world.

Cloudflare DNS is an enterprise-grade authoritative DNS service that delivers the fastest response times, unparalleled redundancy, and advanced security with built-in DDoS mitigation and DNSSEC.

Over 10% websites use Cloudflare as a reverse proxy

The following is the DNS address for this service:

IPv4 Address:
1.1.1.1

Cloudflare has an extremely large network and infrastructure that can stop even the largest attacks against the DNS system. We only receive clean requests and no longer have to deal with malicious traffic or attacks on our DNS infrastructure.

3. OpenDNS

OpenDNS is a free domain name resolution service provider (DNS) with anti-phishing, content control software and other functions.

OpenDNS provides DNS solutions for individuals and businesses. Users can choose to use OpenDNS's services or use the DNS services provided by their local ISP. Placing server groups in strategic locations and using a large number of domain name caches can make DNS queries much faster, thereby speeding up page retrieval. DNS query results are sometimes cached by the local operating system or application, so the increase in speed may not be reflected in each query, but the increase in query speed for results that are not in the local cache is obvious. Other features include an anti-phishing filter. By collecting a list of malicious websites, OpenDNS will block these malicious websites when users visit them through their service. OpenDNS recently launched an anti-phishing service (PhishTank) so that users around the world can report and view untrustworthy phishing websites.

OpenDNS is not open source software as its name suggests.

The following is the DNS address for this service:

OpenDNS's IPv4 free DNS resolution server:
208.67.222.123
208.67.220.123

OPENDNS settings work on all your devices: laptops, smartphones, tablets, DVRs, game consoles, TVs, pretty much anything that connects to the internet from your home network. Not to mention, OpenDNS is one of the world’s leading DNS service providers, which means you’ll also experience faster internet speeds.

4. DNS.WATCH

WATCH is a fast, free and uncensored DNS server (or more specifically, a DNS resolver). The service is available worldwide and free of charge to everyone.

Optimized for maximum speed - browse the web without any lags. WATCH's resolver only provides uncensored records. DNS.WATCH believes in freedom. Everyone should have free access to uncensored resolvers.

The following is the DNS address for this service:

IPv4 free DNS resolution server:
84.200.69.80 (resolver1.dns.watch)
84.200.70.40 (resolver2.dns.watch)
IPv6 free DNS resolution server:
2001:1608:10:25::1c04:b12f
2001:1608:10:25::9249:d69b

No censorship. No bullshit. Just DNS.

With a focus on transparency and freedom of choice, DNS Watch offers the best DNS servers that are not subject to any form of censorship. They also guarantee that no information is stored on their servers and their resolvers are not set to log any of your data.

5. COMODO SecureDNS

Comodo Secure DNS, enjoy a safer, smarter, faster network completely free. Switch to Comodo Secure DNS 2.0 to get a faster and more reliable web browsing experience than the DNS server provided by your local ISP. This does not require any hardware or software installation!

The following is the DNS address for this service:

IPv4 free DNS resolution server:
8.26.56.26
8.20.247.20

As a leading computer security solutions provider, Comodo is highly aware of the dangers of today's Internet. Secure DNS helps users filter malicious domains to ensure online safety. Secure DNS references a real-time block list to block harmful websites (such as phishing sites, malware sites, spyware sites, excessive advertising sites, etc.), and will alert you whenever you try to visit a website that contains potentially threatening content. Routing your requests through highly secure servers can also reduce your exposure to DNS cache poisoning attacks, which may also affect anyone else using your ISP.

6. Verisign Public DNS

Why choose VeriSign Public DNS?
Stability: Confidence in a highly reliable public DNS platform
Security: Strong protection against security breaches
Privacy: Guarantee that your public DNS data will not be sold to third parties

The following is the DNS address for this service:

IPv4 free DNS resolution server:
64.6.64.6
64.6.65.6

VeriSign Public DNS is our new free recursive DNS service that leverages VeriSign's extensive DNS experience and expertise and respects your privacy. VeriSign does not sell your public DNS data to third parties, nor does it redirect your failed queries to sites that serve you ads. It also provides improved DNS stability and security compared to other alternatives.

7. OpenNIC

A group of enthusiasts running an alternative DNS network also provides access to non-ICANN-managed domains.

DNS Neutrality: No company should be able to say which websites we can or cannot use. By using our voluntary DNS servers, you no longer have to question your ISP's motives and can rest assured that your Internet connection is not being censored by your DNS servers.

Free: We are a non-profit organization and do not charge for access to our DNS services, including proposals/requests for new TLDs. Free to use and operated entirely by volunteers, so there is no financial pressure to undermine our organization. New volunteers are welcome!

Stop DNS Hijacking: Have you ever typed the wrong URL into your browser only to be met with a search page owned by your ISP? The domains you tried to visit, the ads you clicked on, and the searches you conducted could all be collected by your ISP for any number of nefarious purposes. You can block this behavior with OpenNIC servers, which allows DNS to work the way it was intended: under your control.

The following is the DNS address for this service:

IPv4 DNS Servers:
185.121.177.177
169.239.202.202
IPv6 DNS Servers:
2a05:dfc7:5::53
2a05:dfc7:5353::53

OpenNIC is a great choice for users who don't want to figure out what server is closest to their location.

The DNS servers listed here are just a portion of the vast number of servers they have available. If you visit their website, not only can you look up the DNS closest to your location, but you can also have the site do it for you automatically. This saves you the hassle of searching for the best DNS.

More DNS server address queries:https://servers.opennic.org/

8. GreenTeamDNS

GreenTeamDNS is a 100% cloud-based network security filtering service that protects you from malware and phishing sites and/or unwanted or objectionable content - all based on simple filtering policies you set. This simple DNS switch on your router (preferred), computer, tablet or mobile device will protect you, your children or employees from accidental or intentional exposure to adult content, gambling sites, malware and phishing sites.

The following is the DNS address for this service:

IPv4 Address:
81.218.119.11
209.88.198.133

GreenTeamDNS is an all-in-one premium domain name service that is completely cloud-based. Known as a web file archiving service, it protects you from malware and phishing sites, as well as all unpatented or objectionable content - all based on simple but powerful filtering policies that you set.

DNS works similarly to all other related services, but its new level of security, settings and all other features make it better than others. It also makes it simple to turn on your router, computer, tablet or mobile device, which will save you and your employees from accidental or intentional exposure to gambling sites, adult content and any type of malware sites.

GreenTeamDNS is a cloud-based service with advanced malware protection that protects homes, schools, and businesses from visiting millions of dangerous websites. The service comes with two different account levels such as Basic and Business/Premium. Both have various benefits, features, and price plans to choose from.

Domestic public DNS service

1.114DNS

114DNS originated from the ultra-large DNS system that Nanjing Tradewind used to provide backup services for about 20 million broadband users of China Telecom and China Unicom in two major provinces in 2010. Against the backdrop of the nationwide large-scale DNS failure on May 19, 2009, the hijacking of Baidu's domain name in 2010, repeated attacks on domestic domain name registrars and some authoritative DNS service units, and relevant agencies' monitoring of more than 50% of domestic domain name services being unsafe, Nanjing Tradewind took the lead and worked with multiple telecom operators for more than a year to develop a professional DNS platform that was deployed at multiple points using BGP Global AnyCast technology. It also provides public DNS resolution services and authoritative DNS resolution services. 114DNS will provide reliable basic security for China's Internet and e-commerce.

The following is the DNS address for this service:

IPv4 Address:
114.114.114.114
114.114.115.115

Pure and without hijacking. No need to endure the pain of being forced to watch advertisements or vulgar websites.

Block phishing virus and Trojan horse websites to enhance the security of online banking, securities, shopping, games, and privacy information
The service addresses are: 114.114.114.119 and 114.114.115.119

Schools or parents can choose to block pornographic websites to protect children from the harm of online pornographic content.
The service addresses are: 114.114.114.110 and 114.114.115.110

114DNS website address:https://www.114dns.com/

2.DNSPod Public DNS (Tencent DNS)

Tencent DNS is based on BGP Anycast technology and is interconnected with domestic and global operators. No matter where users are, they can access services nearby.
Supports Google ECS (edns-client-subnet) protocol and cooperates with DNSPod authoritative resolution to provide users with the most accurate resolution results.
We promise not to hijack the parsing results. We also provide a professional version with management functions, which can be configured by users to block various dangerous websites.

The following is the DNS address for this service:

IPv4 Address:
119.29.29.29
IPv6 Address:
2402:4e00::

Tencent DNS website address:https://www.dnspod.cn/Products/Public.DNS

3. Alibaba Cloud Public DNS

fast:Public DNS(recursive resolution) + Cloud DNS (authoritative resolution), a one-stop DNS resolution closed loop; dynamic caching technology reduces layers of recursion and speeds up resolution responses.

Stability: A cluster of hundreds of servers around the world, with sufficient bandwidth resources; years of experience in public DNS operations, providing high-quality, stable access services.

Security: Supports user ECS extension technology and intelligent analysis; supports DoT/DoH protocols, protects user privacy, and is secure against hijacking.

The following is the DNS address for this service:

IPv4 Address:
223.5.5.5
223.6.6.6
IPv6 Address:
2400:3200::1
2400:3200:baba::1

Alibaba Cloud Public DNS is Alibaba Cloud's global public recursive domain name resolution service for all Internet users. As part of the domestic Internet infrastructure,

Alibaba Cloud Public DNS focuses on the first-hop capability of terminal devices to access the Internet, providing fast, secure, stable, and intelligent DNS recursive resolution services.

Ali DNS website address:http://alidns.com/

4. Baidu Public DNS

Faster and more stable: Which is the fastest and most stable website in China? That’s right, www.baidu.com. Baidu Public DNS has the same basic network, infrastructure and system architecture as Baidu Search. More importantly, we are a group of people.
Pure and without hijacking:As China's largest traffic company, Baidu is the biggest victim of DNS hijacking. Baidu's goal in building a public DNS is to provide a pure and secure traffic environment for the majority of netizens, and to curb hijacking chaos through the power of its products.
Safety protection:Another additional function of Baidu Public DNS is security protection. Relying on Baidu's safe search technology, if the website you visit has virus or Trojan risk, we will intercept and prompt it in real time, effectively ensuring the user's Internet security.
CDN affinity:Baidu Public DNS has recursive exit nodes all over the country. When a query request does not hit the primary cache, we will dispatch the request to the recursive node closest to the user for further query. Therefore, it will not affect the scheduling progress of the CDN. On the other hand, we are actively implementing edns-client-subnet, which will greatly improve the CDN scheduling accuracy, and I believe CDN manufacturers will like it.