DNS Lookup Tool
Query DNS records for any domain with multiple record types
The Domain Name System (DNS) is like the internet's phone book. It translates human-readable domain names (like example.com) into IP addresses that computers use to communicate with each other.
How DNS Works:
You enter a domain name in your browser
Your computer queries DNS servers to find the IP address
DNS servers return the corresponding IP address
Your browser connects to the website using the IP address
Key Concepts:
How long DNS records are cached before being refreshed
Servers that store and serve DNS records for domains
Different types of information stored in DNS (A, MX, CNAME, etc.)
Time it takes for DNS changes to spread across the internet
Public DNS Servers:
| Provider | Primary DNS | Secondary DNS | IPv6 DNS |
|---|---|---|---|
| 114DNS | 114.114.114.114 | 114.114.115.115 | - |
| DNSPod DNS+ | 119.29.29.29 | 182.254.116.116 | 2402:4e00:: |
| DNS.SB (Telecom/Mobile) | 101.226.4.6 | 218.30.118.6 | - |
| DNS.SB (Unicom) | 123.125.81.6 | 140.207.198.6 | - |
| CNNIC DNS | 1.2.4.8 | 210.2.4.8 | - |
| Google DNS | 8.8.8.8 | 8.8.4.4 | 2001:4860:4860::8888 |
| Cloudflare DNS | 1.1.1.1 | 1.0.0.1 | 2606:4700:4700::1111 |
| IBM Quad9 DNS | 9.9.9.9 | 149.112.112.112 | 2620:fe::fe |
| DNS.SB | 185.222.222.222 | 185.184.222.222 | 2a09:: |
| OpenDNS | 208.67.222.222 | 208.67.220.220 | 2620:0:ccc::2 |
| V2EX DNS | 199.91.73.222 | 178.79.131.110 | - |
| Alibaba Cloud DNS | 223.5.5.5 | 223.6.6.6 | 2400:3200::1 |
| Tencent Cloud DNS | 183.60.83.19 | 183.60.82.98 | - |
| Baidu Cloud DNS | 180.76.76.76 | - | 2400:da00::6666 |
| Microsoft DNS | 4.2.2.1 | 4.2.2.2 | - |
| Huawei Cloud DNS | 122.112.208.1 | 139.9.23.90 | - |
| ByteDance DNS | 180.184.1.1 | 180.184.2.2 | - |
| OneDNS | 117.50.11.11 | 52.80.66.66 | - |
| Chunghwa Telecom DNS | 168.95.192.1 | 168.95.1.1 | - |
| Hong Kong Broadband DNS | 203.80.96.10 | 203.80.96.9 | - |
| Norton DNS | 199.85.126.10 | 199.85.127.10 | - |
| Oracle Dyn DNS | 216.146.35.35 | 216.146.36.36 | - |
| Credit Suisse DNS | 64.6.64.6 | 64.6.65.6 | - |
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