想要从您的ISP DNS切换到其他提供商？我惊讶地发现，使用信誉良好的公司提供的免费公共DNS 服务器比使用本地(DNS server)ISP DNS好得多，尤其是在国外旅行时。
我最近在印度(India)，对不断出现的网页无法加载错误感到非常沮丧，然后网站在5(loading 5)秒后加载。我一直看到DNS 查找(DNS lookup)失败消息，所以我想让我尝试另一个DNS 提供商(DNS provider)，这绝对是一个不同的世界。
您可以使用许多公共DNS服务器，但我不会费心提及它们，因为前 5 到 10 名将满足几乎所有人的需求。一些DNS服务器提供额外的好处，例如过滤网络钓鱼诈骗、阻止色情网站等，我一定会提到每项服务的功能。
另外，请务必阅读我关于使用免费实用程序从您的位置查找最快的公共 DNS 服务器的帖子。(finding the fastest public DNS server)一旦您选择了DNS 服务(DNS service)，请阅读我关于如何在 Windows 中更改 DNS 服务器的(how to change your DNS servers in Windows)文章。
1.谷歌公共DNS
谷歌(Google)是谷歌(Google)，他们拥有分布在世界各地的大规模、负载平衡、冗余和 DNS 服务器。(redundancy and DNS servers)它们还支持最新的技术和安全机制，例如IPv6 DNS服务器和DNSSEC。他们的 DNS 服务器也能很好地抵御DoS攻击和缓存中毒(cache poisoning)攻击。
值得注意的是，Google 公共 DNS(Google Public DNS)不会像其他一些服务那样对DNS请求执行任何(DNS)阻止或过滤。(blocking or filtering)他们表示，只有在特殊情况下，他们才会阻止任何事情。对我来说，这是一个不错的选择，因为我使用其他工具来过滤恶意软件站点等，并且不一定希望涉及我的DNS 服务。(DNS service)
使用Google的主要好处是他们的全球数据中心以及他们在世界各地拥有DNS服务器的事实。其他一些服务只有位于世界某一地区的DNS服务器，因此性能会受到很大影响。(DNS)
使用谷歌(Google)的主要缺点是它们都是关于跟踪和记录任何人在互联网上所做的(Internet)一切(everything anyone)，这也不例外。如果您对Google(Google)的信息过多持怀疑态度，我建议您使用不同的DNS 服务器(DNS server)。
谷歌公共 DNS IPv4 地址：
谷歌公共 DNS IPv6 地址：
- 2001:4860:4860::8888
- 2001:4860:4860::8844
2. 3级DNS
Level 3是为许多ISP提供与(ISPs)Internet 骨干网(Internet backbone)连接的公司，因此它们规模庞大、可靠且安全。3 级(Level 3)没有过滤，就像Google DNS一样，所以它主要用于性能和可靠性(performance and reliability)。
根据您在世界上的位置，我在这里提到的任何公共DNS 服务器(DNS server)都可能是最快的，这就是为什么有必要阅读上面的链接以找到最快的DNS 服务器(DNS server)以进行连接。
3 级(Level 3) 公共 DNS 服务器(Public DNS Server)地址：
- 209.244.0.3
- 209.244.0.4
- 4.2.2.1
- 4.2.2.2
- 4.2.2.3
- 4.2.2.4
3.开放DNS
OpenDNS已经存在了很长时间，他们是一家有信誉的公司。OpenDNS提供多项服务，包括增强型 DNS 和家长控制(Enhanced DNS and Parental Controls)，这两项服务都是免费的。
OpenDNS也是我提到的第一个自动阻止和过滤网络钓鱼攻击和身份盗用的公共(identity theft)DNS。如果您有孩子并希望防止他们登陆受恶意软件感染的网站，或者您有年长的家庭成员有时会点击电子邮件中的垃圾邮件链接，这是一个很好的选择。
他们还提供每月 20 美元的VIP 服务，可为您提供网络上所有设备的大量(VIP service)Internet 使用(Internet usage)统计信息。
OpenDNS IP 地址：
- 208.67.222.222
- 208.67.220.220
4. 诺顿 ConnectSafe DNS
Norton ConnectSafe是(Norton ConnectSafe)Norton提供的公共DNS 服务(DNS service)。与OpenDNS一样，诺顿(Norton)也具有基于其站点数据库的自动过滤和阻止功能。使用我提到的免费DNS 速度(DNS speed)工具，它也是最快的公共 DNS服务器之一。
Norton DNS有几个不同的DNS服务器，具体取决于您想要的保护类型。他们有三个选择：
A –防范(Protection)恶意软件、网络钓鱼和诈骗网站
B – A + 色情
C – A +色情+其他
其他基本上会阻止与成人内容、赌博、仇恨、自杀、烟草、毒品、酒精等相关的网站。显然，这可能会阻止很多网站，所以我们根据您的需要选择该选项。
诺顿 DNS IP 地址：
选项 A：
- 199.85.126.10
- 199.85.127.10
选项 B：
- 199.85.126.20
- 199.85.127.20
选项 C：
- 199.85.126.30
- 199.85.127.30
5.OpenNIC DNS
最后，我喜欢使用的另一个是OpenNIC。他们在世界各地拥有由他们自己的成员运行的服务器，并且存在提供一个民主的、非国家的网络来保护您的隐私。上面的链接将向您显示他们在世界各地的所有第 2 层(Tier 2) DNS服务器的列表，但您可以转到主页(homepage)，它会在右上角自动告诉您最接近您的 IP 的服务器。
查看服务器列表时，您可以选择适合您隐私需求的服务器。他们中的许多人不保留任何日志，完全禁用日志或保留匿名日志。
因此，这些是我对公共DNS(DNS)服务器的最高建议，这些服务器可靠、快速，并为需要它的人提供额外的安全性和过滤。(security and filtering)尽管大多数人使用他们的 ISP 作为DNS，但使用第三方确实要好得多。如果您有任何问题，请在评论中告诉我们。享受！
Best Free Public DNS Servers
Looking to switch from your ISP DNS to another provider? I was surprised to find out that using a free public DNS server from a reputable company was fаr better than using my loсal ISP DNS, especially when travelling in foreign countries.
I was recently in India and was getting very frustrated with the constant Webpage cannot load errors followed by the website loading 5 seconds later. I kept seeing the DNS lookup failed message, so I figured let me try another DNS provider and that made an absolute world of difference.
There are a bunch of public DNS servers you can use, but I won’t bother mentioning them all as the top 5 to 10 will cover the needs for pretty much everyone. Some DNS servers provide additional benefits like filtering out phishing scams, blocking porn sites, etc. and I’ll be sure to mention the features for each service.
Also, be sure to read my post on finding the fastest public DNS server from your location using free utilities. Once you have chosen a DNS service, read my post on how to change your DNS servers in Windows.
1. Google Public DNS
Google being Google, they have massive scale, load-balancing, redundancy and DNS servers distributed all over the world. They also support the latest technologies and security mechanisms like IPv6 DNS servers and DNSSEC. Their DNS servers are also well protected against DoS attacks and cache poisoning attacks.
It’s worth noting that Google Public DNS does not perform any blocking or filtering on the DNS requests, as some of the other services do. They state that only under extraordinary circumstances would they block anything. For me, this is a good option because I use other tools to filter out malware sites, etc and don’t necessarily want my DNS service to be involved.
The main benefit for using Google is their global data center and the fact that they have DNS servers located around the world. Some other services only have DNS servers located in one part of the world, so the performance will suffer considerably.
The main downside to using Google is that they are all about tracking and logging everything anyone does on the Internet and this is no exception. If you are leery of Google having too much information, I would suggest using a different DNS server.
Google Public DNS IPv4 Addresses:
Google Public DNS IPv6 Addresses:
- 2001:4860:4860::8888
- 2001:4860:4860::8844
2. Level 3 DNS
Level 3 is the company that provides a lot of ISPs their connection to the Internet backbone, so they are huge, reliable and secure. There is no filtering with Level 3, just like Google DNS, so it’s mostly used for performance and reliability.
Depending on your location in the world, any of the public DNS servers I mention here could be the fastest, so that’s why it’s necessary to read the link above on finding the fastest DNS server for your connection.
Level 3 Public DNS Server Addresses:
- 209.244.0.3
- 209.244.0.4
- 4.2.2.1
- 4.2.2.2
- 4.2.2.3
- 4.2.2.4
3. OpenDNS
OpenDNS has been around for a very long time and they are a reputable company. OpenDNS provides several services including Enhanced DNS and Parental Controls, both of which are free.
OpenDNS is also the first public DNS that I have mentioned that does automatic blocking and filtering against phishing attacks and identity theft. This is a great option if you have kids and want to prevent them from landing on malware-infested sites or if you have older family members who sometimes click on spam links in emails.
They also have a VIP service for $20 a month that gives you a bunch Internet usage statistics for all the devices on your network.
OpenDNS IP Addresses:
- 208.67.222.222
- 208.67.220.220
4. Norton ConnectSafe DNS
Norton ConnectSafe is the public DNS service provided by Norton. Like OpenDNS, Norton also has automatic filtering and blocking based on their database of sites. Using the free DNS speed tools I mentioned, it’s also one of the fastest public DNS servers.
Norton DNS has a couple of different DNS servers, depending on the type of protection you want. They have three options:
A – Protection against malware, phishing sties and scam sites
B – A + Pornography
C – A +Pornography + Other
Other will basically block sites related to mature content, gambling, hate, suicide, tobacco, drugs, alcohol, etc. Obviously, that could block a lot of sites, so us that option as you see fit.
Norton DNS IP Addresses:
Option A:
- 199.85.126.10
- 199.85.127.10
Option B:
- 199.85.126.20
- 199.85.127.20
Option C:
- 199.85.126.30
- 199.85.127.30
5. OpenNIC DNS
Lastly, another one I like to use is OpenNIC. They have servers all of the world run by their own members and exist to provide a democratic, non-national network that protects your privacy. The link above will show you a list of all of their Tier 2 DNS servers around the world, but you can go to the homepage and it will tell you the closest servers to your IP automatically at the top right.
When looking at the list of servers, you can choose one that fits your privacy needs. A lot of them keep no logs, have logs completely disabled or keep anonymous logs.
So those are my top recommendations for public DNS servers that are reliable, fast, and provide extra security and filtering for those that need it. Even though most people use their ISP for DNS, it’s really much better to use a third-party. If you have any questions, let us know in the comments. Enjoy!
