Related Tools
The DNS record query tool provides DNS A-type, CNAME type, MX type and TXT type record query functions. Domain name system (English: domain name system, abbreviation: DNS) is a service of the Internet. As a distributed database that maps domain names and IP addresses to each other, it can make it easier for people to access the Internet. DNS uses TCP and UDP ports 53. At present, the length limit for each level of domain name is 63 characters, and the total length of domain name cannot exceed 253 characters.
DNS record query tool.
- Please select the DNS record type to query and enter the domain name to be queried.
-
Record type:
A:The domain name points to the IP address.
CNAME:The domain name points to another domain name.
MX:The domain name points to the mail server address.
TXTText value, usually used as SPF record. - The use frequency of this tool is limited. Please use it reasonably.
DNS over TLS
DNS over TLS (DoT) is a network security protocol for encrypting and wrapping Domain Name System (DNS)
queries and answers via the Transport Layer Security (TLS) protocol. The goal of the method is to
increase user privacy and security by preventing eavesdropping and manipulation of DNS data via
man-in-the-middle attacks.
While DNS-over-TLS is applicable to any DNS transaction, it was first standardized for use between stub
or forwarding resolvers and recursive resolvers, in RFC 7858 in May of 2016. Subsequent IETF efforts
specify the use of DoT between recursive and authoritative servers ("Authoritative DNS-over-TLS" or
"ADoT") and a related implementation between authoritative servers (Zone Transfer-over-TLS or
"xfr-over-TLS").
DNS over HTTPS
DNS over HTTPS (DoH) is a protocol for performing remote Domain Name System (DNS) resolution via the
HTTPS protocol. A goal of the method is to increase user privacy and security by preventing
eavesdropping and manipulation of DNS data by man-in-the-middle attacks by using the HTTPS protocol to
encrypt the data between the DoH client and the DoH-based DNS resolver. By March 2018, Google and the
Mozilla Foundation had started testing versions of DNS over HTTPS. In February 2020, Firefox switched to
DNS over HTTPS by default for users in the United States.
An alternative to DoH is the DNS over TLS (DoT) protocol, a similar standard for encrypting DNS queries,
differing only in the methods used for encryption and delivery. On the basis of privacy and security,
whether or not a superior protocol exists among the two is a matter of controversial debate, while
others argue the merits of either depend on the specific use case.
Free and Public DNS Server List
| Chinese Name | English Name | IP Address | IPv6 Address | Other(DOT/DOH) | Recommended Use Region |
|---|---|---|---|---|---|
| 阿里巴巴 | AliDNS |
223.5.5.5
223.6.6.6 |
2400:3200:0:0:0:0:0:1
2400:3200:baba:0:0:0:0:1 |
DOH:https://dns.alidns.com/dns-query DOT:dns.alidns.com |
China |
| 114 DNS | 114 DNS |
114.114.114.114 114.114.115.115 |
China | ||
| 百度 | BaiduDNS | 180.76.76.76 | 2400:da00:0:0:0:0:0:6666 | China | |
| DNSPod DNS | DNSPod DNS | 119.29.29.29 | 2402:4e00:0:0:0:0:0:0 |
DOH:https://doh.pub/dns-query DOT:dot.pub |
China |
| CNNIC SDNS | CNNIC SDNS |
1.2.4.8 210.2.4.8 |
China | ||
| Cloudflare DNS | Cloudflare DNS | 1.1.1.1 1.0.0.1 |
2606:4700:4700:0:0:0:0:64 2606:4700:4700:0:0:0:0:6400 |
Global | |
| 微软 | Microsoft | 4.2.2.1 4.2.2.2 |
Global | ||
| 谷歌 | Google DNS | 8.8.8.8 8.8.4.4 |
2001:4860:4860:0:0:0:0:8888
2001:4860:4860:0:0:0:0:8844 |
DOH:https://dns.google/dns-query – RFC 8484 (GET and POST) DOH:https://dns.google/resolve? – JSON API (GET) DOT:dns.google |
Global |
| IBM | IBM Quad9 |
9.9.9.9
149.112.112.112 |
2620:fe:0:0:0:0:0:fe
2620:fe:0:0:0:0:0:9 |
Global |
