Google DNS
极速 主DNS
8.8.8.8 备DNS
8.8.4.4 IPv6
2001:4860:4860::8888 全球最受欢迎的免费DNS服务，由Google开发。具备高速、高可靠性，在全球范围内均可使用。
- Exceptional speed
- 99.9% uptime
- Full IPv6 support
- No censorship or filtering
免费DNS 2026
最佳免费公共DNS服务器，助你提升网速与安全性
最佳免费DNS服务器
了解全球最受欢迎、最可靠的免费公共DNS服务
Cloudflare DNS
极速 主DNS
1.1.1.1 备DNS
1.0.0.1 IPv6
2606:4700:4700::1111 多项基准测试中全球最快的DNS。Cloudflare注重隐私保护，不记录您的个人IP地址。
- Fastest globally
- Privacy focused
- No personal IP logging
- Anti-malware protection
Quad9 DNS
安全 主DNS
9.9.9.9 备DNS
149.112.112.112 IPv6
2620:fe::fe IBM推出的以安全为核心的免费DNS服务，能自动拦截恶意域名、钓鱼网站和僵尸网络。
- Automatic malware blocking
- Phishing protection
- No user logs
- IBM backed
OpenDNS
家长控制 主DNS
208.67.222.222 备DNS
208.67.220.220 IPv6
2620:119:35::35 Cisco旗下的DNS服务，提供出色的家长控制选项和可定制的内容过滤功能。
- Advanced parental controls
- Content filtering
- Usage statistics
- Phishing blocking
AdGuard DNS
无广告 主DNS
94.140.14.14 备DNS
94.140.15.15 IPv6
2a10:50c0::ad1:ff 可拦截广告、追踪器和恶意域名的DNS。非常适合无广告干扰的浏览体验。
- Ad blocking
- Anti-tracking
- Malware protection
- No browsing logs
NextDNS
可定制 主DNS
45.90.28.0 备DNS
45.90.30.0 IPv6
2a07:a8c0:: 现代化DNS，提供高级配置、详细的分析数据以及对内容过滤的精细控制。
- Custom configuration
- Detailed analytics
- Multiple blocklists
- Developer API
速度与特性对比
| 服务商 | 速度 | 隐私 |
|---|---|---|
| Google DNS | 优秀 | 基础 |
| Cloudflare DNS | 优秀 | 优秀 |
| Quad9 DNS | 良好 | 优秀 |
| OpenDNS | 良好 | 良好 |
| AdGuard DNS | 良好 | 优秀 |
| NextDNS | 良好 | 优秀 |
| Yandex DNS | 中等 | 基础 |
| CleanBrowsing | 良好 | 良好 |
什么是DNS？ - 完整指南
DNS将域名转换为IP地址。它是使互联网浏览成为可能的隐形基础设施。
1
You type a URL
Your browser needs to convert the domain into an IP address.
2
DNS query
The request travels through recursive servers, root servers and TLD servers.
3
Response
The IP is returned and your browser connects to the web server.
使用公共DNS的优势
Higher Speed
Public DNS are usually faster than your ISP's defaults, reducing web page loading times.
Better Security
Many public DNS offer protection against malware, phishing and malicious websites.
Greater Availability
Major providers have global infrastructure with high availability and redundancy.
Privacy Control
Some public DNS offer better privacy policies than local ISPs.
如何在不同设备上配置DNS
手把手教您在主流操作系统和设备上配置自定义DNS服务器。
Frequently Asked Questions
Yes, public DNS from recognized providers like Google, Cloudflare and Quad9 are safe and reliable. In fact, many offer better security than your ISP's default DNS, including protection against malware and phishing.
Changing to a faster DNS can significantly improve web page loading times, especially initial domain name resolution. However, it won't increase your download speed or total bandwidth.
For gaming, we recommend Cloudflare (1.1.1.1) or Google DNS (8.8.8.8) for their low latency and high availability. Avoid DNS with extensive filtering as they may add additional latency.