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没有一台 DNS 服务器适合所有人。如果你只想要通用解析,可比较 Google Public DNS 和 Cloudflare 1.1.1.1;如果你优先拦截已知恶意域名,可考虑 Quad9 的威胁拦截配置;如果你需要拦截广告、跟踪器或成人内容,可查看 AdGuard DNS 对应的过滤模式。速度则要在你自己的网络上测试,不能仅凭服务商名称判断谁最快。
本文依据截至 2026 年 10 月 8 日可核实的服务说明整理。DNS 服务端点、隐私政策和设备设置可能变更,配置前应核对服务商当前文档。
DNS 服务器究竟做什么?
递归 DNS 解析器负责替设备查询域名对应的 DNS 记录,例如把网站域名解析为浏览器可连接的地址。换用公共解析器,改变的是负责回答查询的服务商;它不会改变网站本身,也不会替你托管自己域名的 DNS 记录。
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match递归解析与权威 DNS 托管是两回事。前者回答设备发出的查询;后者发布某个域名的权威记录。Google Public DNS 是公共递归解析器,不等同于 Google Cloud DNS 的权威 DNS 托管服务。
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选择 DNS 时要比较什么?
把选择拆成几项实际需求,比寻找一个所谓“最佳 DNS”更有用:
- 解析与过滤:你想要尽量不做内容过滤的解析,还是希望拦截恶意域名、广告与跟踪器,或启用家庭保护?
- 加密协议:你的设备或路由器是否支持 DNS over HTTPS(DoH)或 DNS over TLS(DoT),以及服务商是否提供对应端点?
- 隐私政策:查看服务商说明收集什么数据、保留多久、是否共享,以及是否公开审计信息。政策是服务商的承诺和说明,并不等于没有任何一方能观察到查询。
- 本地速度与可靠性:解析延迟会受位置、ISP、路由、设备、协议和当时网络状况影响。比较时也要关注失败率和稳定性,而不只看一次响应时间。
- 设置与恢复:确认设备或路由器支持所需配置,并在更改前记下现有 DNS 设置,以便出现问题时恢复。
Google DNS、Cloudflare、Quad9 和 AdGuard 怎么选?
下表比较的是各服务公开说明的用途,而非速度排名。具体配置应以服务商当前端点表、过滤说明和隐私政策为准。
| 服务 | 适合的需求 | 过滤与加密 | 选择时留意 |
|---|---|---|---|
| Google Public DNS | 通用公共递归解析 | 提供 DoH、DoT 配置说明;并非以广告或家庭内容过滤为主要用途 | Google 表示客户端 IP 会暂时记录,并在一两天内删除;某些 ISP 及城市或都会区层级信息会保留更久。具体以其现行隐私说明为准。 |
| Cloudflare 1.1.1.1 | 通用公共递归解析 | 支持 DoT;核对当前可用的加密配置及端点 | Cloudflare 的解析器隐私政策称,指定公共解析器日志会在 25 小时内删除并截断源 IP,同时说明存在有限例外。该政策属于 Cloudflare 的陈述。 |
| Quad9 | 希望拦截已知恶意域名的用户 | 有威胁拦截配置,也有不启用威胁拦截的解析器变体;应核对具体端点 | 不要只凭“Quad9”名称推定过滤行为,需确认实际设置的是哪种服务变体。 |
| AdGuard DNS | 需要广告、跟踪器、安全或家庭过滤的用户 | 提供不同过滤模式,并在文档中说明受支持的加密协议选项 | 选择前查看所选模式拦截的域名类别,避免把不同模式当成同一服务。 |
只想要通用解析
可把 Google Public DNS 与 Cloudflare 1.1.1.1 放在候选名单中,再结合隐私政策、设备支持和本地测试决定。若设备支持且你希望 DNS 查询传输加密,可考虑配置 DoH 或严格模式 DoT。
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- Covers up to 1,000 sq. ft. with four external antennas for stable wireless connections and optimal coverage.
- Supports IGMP Proxy/Snooping, Bridge and Tag VLAN to optimize IPTV streaming
- Access Point Mode - Supports AP Mode to transform your wired connection into wireless network, an ideal wireless router for home
- Advanced Security with WPA3 - The latest Wi-Fi security protocol, WPA3, brings new capabilities to improve cybersecurity in personal networks
优先防范恶意域名
可评估 Quad9 的威胁拦截变体。拦截范围取决于服务端点和其威胁情报规则;配置时确认使用的是哪一个变体,并留意误拦截网站时的处理方式。
需要广告或家庭过滤
查看 AdGuard DNS 的安全、广告与跟踪器、家庭保护等模式,并按家庭实际需求选择。过滤会改变部分域名的解析结果,因此某些应用或网站功能可能受影响;若问题出现,可切换模式或临时恢复原 DNS 进行排查。
哪种 DNS 对我的网络最快?
目前没有足以证明某一公共解析器在所有地区、ISP、设备和协议下都最快的可比数据。一次测试结果也可能受缓存、网络拥塞和测试方法影响,因此不能把全球性最快排名当成个人网络的答案。
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- READY FOR THE DEVICES YOU ALREADY OWN: Your phones, laptops, and TVs work right out of the box. WiFi 6 delivers speeds up to 1.8 Gbps across 2.4 GHz and 5 GHz bands. Backward compatible with WiFi 5 and earlier.
- COVERAGE IN EVERY ROOM: Covers up to 1,500 sq. ft. for up to 20 connected devices. Walls, floors, and interference can reduce range. Larger or multi-story homes may benefit from a NETGEAR Orbi mesh WiFi system.
在你实际使用的设备和网络上,对候选解析器重复测试响应时间与可用性,并尽量保持测试条件一致。若不同候选速度相近,优先按过滤需求、隐私政策及连接稳定性选择。改变 DNS 只影响域名查询这一步,不会自动提高带宽或修复所有网络延迟问题。
DoH、DoT 和 DNSSEC 有什么区别?
DoH 与 DoT:加密设备到解析器这一段
传统 DNS 查询通常通过 UDP 或 TCP 传输,客户端与解析器之间的内容一般没有加密。DoH 和 DoT 会加密客户端到解析器之间的 DNS 消息,减少同一链路上的旁观者直接读取查询内容的机会。它们并不会让解析器看不见查询:标准 DoH 下,解析器仍能看到客户端 IP 和所查询的域名。
严格与机会式 DoT
Google 的 DoT 文档区分严格隐私配置与机会式配置。严格配置会验证所配置的 DNS 服务器名称;如果无法建立 TLS 连接,DNS 查询会失败,而不是退回普通 DNS。机会式配置在 TLS 无法建立时可能回退到 53 端口上的普通 DNS,并且不能防止主动攻击者冒充服务器。两者的隐私与可用性取舍不同,选择时应查看设备和服务商的具体实现。
Rank #4
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- 𝐁𝐄𝟑𝟔𝟎𝟎 𝐃𝐮𝐚𝐥-𝐁𝐚𝐧𝐝 𝐖𝐢-𝐅𝐢 𝟕 𝐑𝐨𝐮𝐭𝐞𝐫: Delivers up to 2882 Mbps (5 GHz), and 688 Mbps (2.4 GHz) speeds for 4K/8K streaming, AR/VR gaming & more. Dual-band routers do not support 6 GHz. Performance varies by conditions, distance, and obstacles like walls.
- 𝐔𝐧𝐥𝐞𝐚𝐬𝐡 𝐌𝐮𝐥𝐭𝐢-𝐆𝐢𝐠 𝐒𝐩𝐞𝐞𝐝𝐬 𝐰𝐢𝐭𝐡 𝐃𝐮𝐚𝐥 𝟐.𝟓 𝐆𝐛𝐩𝐬 𝐏𝐨𝐫𝐭𝐬 𝐚𝐧𝐝 𝟑×𝟏𝐆𝐛𝐩𝐬 𝐋𝐀𝐍 𝐏𝐨𝐫𝐭𝐬: Maximize Gigabitplus internet with one 2.5G WAN/LAN port, one 2.5 Gbps LAN port, plus three additional 1 Gbps LAN ports. Break the 1G barrier for seamless, high-speed connectivity from the internet to multiple LAN devices for enhanced performance.
- 𝐍𝐞𝐱𝐭-𝐆𝐞𝐧 𝟐.𝟎 𝐆𝐇𝐳 𝐐𝐮𝐚𝐝-𝐂𝐨𝐫𝐞 𝐏𝐫𝐨𝐜𝐞𝐬𝐬𝐨𝐫: Experience power and precision with a state-of-the-art processor that effortlessly manages high throughput. Eliminate lag and enjoy fast connections with minimal latency, even during heavy data transmissions.
- 𝐂𝐨𝐯𝐞𝐫𝐚𝐠𝐞 𝐟𝐨𝐫 𝐄𝐯𝐞𝐫𝐲 𝐂𝐨𝐫𝐧𝐞𝐫 - Covers up to 2,000 sq. ft. for up to 60 devices at a time. 4 internal antennas and beamforming technology focus Wi-Fi signals toward hard-to-reach areas. Seamlessly connect phones, TVs, and gaming consoles.
DNSSEC:验证签名数据
DNSSEC 用于验证经过签名的 DNS 数据是否有效;它与 DoH、DoT 解决的问题不同。DNSSEC 不会加密查询内容,传输加密也不能替代 DNSSEC 验证。两者可以互补。
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.换 DNS 会让浏览更私密吗?
不会让浏览活动匿名化。更换解析器会把 DNS 查询交给新的服务商;启用 DoH 或 DoT 可加密设备到解析器之间的 DNS 传输,但解析器仍需处理查询。其他网络参与方在何种情况下能看到哪些信息,还取决于连接方式、服务和网络配置。
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Cloudflare 介绍的 Oblivious DNS over HTTPS(ODoH)采用代理与目标解析器分工:代理能看到客户端 IP,但读不到加密查询;目标解析器能读取查询,但看到的是代理 IP。Cloudflare 同时说明,RFC 9230 属实验性质,且未获 IETF 背书,因此不应把 ODoH 当作所有设备的默认选择。
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- Dual band router upgrades to 1200 Mbps high speed internet (300mbps for 2.4GHz plus 900Mbps for 5GHz), reducing buffering and ideal for 4K stream
- Full Gigabit Ports - Gigabit Router with 4 Gigabit LAN ports, ideal for any internet plan and allow you to directly connect your wired devices
- Boosted Coverage - Four external antennas equipped with Beamforming technology extend and concentrate the Wi-Fi signals
- MU-MIMO technology - (5GHz band) allows high speeds for multiple devices simultaneously
- Access Point Mode - Supports AP Mode to transform your wired connection into wireless network, an ideal wireless router for home
评估隐私时,应直接阅读服务商针对公共解析器的现行政策,区分其收集、保留、删除和共享承诺;不要把服务商政策描述成独立审计结论。
如何更改 DNS 并保留恢复办法?
具体菜单名称会因操作系统、版本、设备和路由器而异。若要只影响一台设备,在该设备的网络设置中配置;若要覆盖家庭网络,可在路由器或接入点设置中配置,前提是设备支持手动 DNS。无需为了更改 DNS 专门购买路由器。
- 记录当前配置:抄下现有 DNS 服务器地址或保存原设置,确认自己知道如何恢复。
- 决定影响范围:只改一台设备,还是在路由器/接入点上为局域网设备统一配置。路由器配置可能覆盖多台设备,具体取决于网络设置。
- 选定服务与变体:核实服务商的端点、过滤行为,以及设备支持的 DoH 或 DoT 方式;不要混用不同服务变体的地址。
- 按设备或路由器说明配置:在相应网络设置中输入服务商提供的服务器信息。不同系统菜单路径不尽相同,应以设备版本的官方说明为准。
- 验证并观察:重新连接网络,检查常用网站和应用是否正常,以及过滤是否符合预期。若出现无法解析或误拦截,先切回原配置,再逐项排查端点、协议和过滤模式。
结论:按需求选,而不是追逐通用冠军
通用解析可比较 Google Public DNS 与 Cloudflare 1.1.1.1;恶意域名拦截可评估 Quad9 的对应变体;广告、跟踪器或家庭过滤可查看 AdGuard DNS 模式。速度在本地网络上测,隐私则依据具体解析器政策与协议能力判断。记下原设置并确认端点,是更换前最实用的保障。
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