Domain Name System (DNS) is a critical part of the internet that translates human-readable domain names like “google.com” into machine-readable IP addresses like “126.96.36.199”. When you type a domain name into your browser, your computer sends a DNS query to a DNS server. The DNS server looks up the IP address associated with the domain name and sends it back to your computer. Your computer then uses the IP address to connect to the website.
Changing your DNS server can sometimes improve internet speed and security. This is because different DNS servers have different cache sizes and policies. A larger cache size means that your computer is more likely to find the IP address for a website in the cache, which can speed up the connection process. Different DNS servers also have different security policies. Some DNS servers are more aggressive about blocking malicious websites, which can help to protect your computer from infection.
In this guide, we will show you how to change your DNS server on Windows, Mac, and Android. We will also discuss the benefits of using Google DNS and OpenDNS, two popular public DNS servers.
What is DNS?
Domain Name System (DNS) is a system that translates human-readable domain names like “google.com” into machine-readable IP addresses like “188.8.131.52”. This allows your web browser to connect to websites by their domain name, rather than having to remember long strings of numbers.
DNS is a critical part of the internet, and without it, we wouldn’t be able to easily access websites. However, DNS can sometimes be slow, which can lead to problems with web browsing. Changing your DNS server to a faster one can help to improve your web browsing experience.
How does DNS work?
When you type a domain name into your web browser, such as www.example.com, your computer sends a request to a DNS server. The DNS server looks up the IP address associated with the domain name and sends it back to your computer. Your computer then uses the IP address to connect to the website.
Without DNS, you would have to remember the IP addresses of all the websites you want to visit. This would be very difficult, as IP addresses are long and complex. DNS makes it easy to remember websites by their domain names.
IV. Why do I need to change my DNS server?
There are a few reasons why you might want to change your DNS server.
- To improve your internet speed.
- To improve your privacy.
- To get around censorship.
Let’s take a look at each of these reasons in more detail.
Improving your internet speed
Your DNS server is responsible for translating human-readable domain names like “google.com” into machine-readable IP addresses like “184.108.40.206”. This process is called name resolution. When you type a domain name into your web browser, your browser first sends a request to your DNS server. Your DNS server then looks up the IP address for that domain name and sends it back to your browser. Your browser can then use the IP address to connect to the website.
If your DNS server is slow, it can slow down your internet speed. This is because it takes longer for your browser to receive the IP address for the website you’re trying to visit.
There are a few ways to improve your DNS speed. One way is to use a different DNS server. There are many different public DNS servers available, and some of them are faster than others. You can try out different DNS servers until you find one that gives you the best performance.
Another way to improve your DNS speed is to use a caching DNS server. A caching DNS server stores the IP addresses of recently visited websites. This means that when you visit a website again, your browser can get the IP address from the caching DNS server instead of having to wait for your ISP’s DNS server to look it up.
Improving your privacy
Your DNS server can track your online activity. This is because your DNS server logs all of the domain names that you visit. This information can be used to build a profile of your online activity, which can then be sold to advertisers or used for other purposes.
If you’re concerned about your privacy, you can use a DNS server that doesn’t log your activity. There are a few different DNS servers that offer this privacy feature, such as OpenDNS and Google Public DNS.
Getting around censorship
In some countries, the government censors the internet. This means that certain websites are blocked by the government. If you’re trying to access a website that is blocked in your country, you can use a DNS server that can bypass censorship.
There are a few different DNS servers that can bypass censorship. One popular option is Google Public DNS. Google Public DNS has servers in many different countries, so you can usually find a server that is not blocked in your country.
Another option is to use a VPN. A VPN encrypts your traffic, which makes it more difficult for the government to track your online activity. This can also help you bypass censorship, as the government will not be able to see which websites you are visiting.
Benefits of using Google DNS
There are several benefits to using Google DNS, including:
- Speed: Google DNS is one of the fastest DNS servers in the world, which can lead to faster web browsing speeds.
- Reliability: Google DNS is a reliable service that is available 24/7.
- Security: Google DNS uses strong security measures to protect your privacy.
- Convenience: Google DNS is easy to set up and use.
If you’re looking for a fast, reliable, secure, and convenient DNS server, then Google DNS is a great option.
VI. Benefits of using OpenDNS
OpenDNS is a free public DNS service that offers a number of benefits over the default DNS servers provided by your ISP. These benefits include:
- Speed: OpenDNS uses a global network of servers to provide faster DNS resolution than your ISP’s servers.
- Security: OpenDNS blocks malicious websites and provides content filtering options.
- Privacy: OpenDNS does not track your browsing activity.
If you’re looking for a faster, more secure, and more private DNS service, then OpenDNS is a great option.
How to change your DNS server
To change your DNS server, follow these steps:
- Open the Network and Sharing Center on your computer.
- Click the Change adapter settings link.
- Right-click the network adapter you are using and select Properties.
- Click the Internet Protocol Version 4 (TCP/IPv4) tab.
- Click the Properties button.
- In the Preferred DNS server field, enter the IP address of the DNS server you want to use.
- In the Alternate DNS server field, enter the IP address of an alternate DNS server.
- Click OK to save your changes.
Once you have changed your DNS server, you may need to restart your computer for the changes to take effect.
Common DNS problems and solutions
There are a few common DNS problems that you may encounter, and there are also a few solutions that you can try to fix them.
Problem: Your computer is unable to resolve domain names. This means that when you try to type a website address into your browser, the browser is unable to find the corresponding IP address and you are unable to access the website.
Solution: There are a few things you can try to fix this problem. First, try restarting your computer. If that doesn’t work, try flushing your DNS cache. To do this, open a command prompt window and type the following command:
If that still doesn’t work, you may need to change your DNS server settings. To do this, open the Network and Sharing Center in Control Panel. Click on “Change adapter settings” and then right-click on the connection that you are using (Ethernet or Wi-Fi) and select “Properties”. Click on the “Internet Protocol Version 4 (TCP/IPv4)” tab and then click on the “Properties” button. In the “DNS server” section, enter the IP addresses of the Google DNS servers (220.127.116.11 and 18.104.22.168) or the OpenDNS servers (22.214.171.124 and 126.96.36.199). Click on “OK” and then close all of the open windows.
Problem: Your computer is using the wrong DNS server. This can cause problems with website performance and security.
Solution: To check which DNS server your computer is using, open a command prompt window and type the following command:
The output of this command will show you the IP address of the DNS server that your computer is using. If you are not using the Google DNS servers or the OpenDNS servers, you may want to change your DNS server settings.
Problem: Your DNS server is not responding. This can prevent you from accessing websites and other online resources.
Solution: If you think that your DNS server is not responding, you can try to ping the DNS server to see if it is responding. To do this, open a command prompt window and type the following command:
If the DNS server is responding, you will see a series of lines that start with “PING” and end with “Reply”. If the DNS server is not responding, you will see a message that says “Request timed out”.
If your DNS server is not responding, you may need to contact your ISP or the company that provides your DNS service.
In this article, we’ve discussed what DNS is, how it works, and why you might want to change your DNS server. We’ve also covered the benefits of using Google DNS and OpenDNS, and how to change your DNS server.
Changing your DNS server can be a great way to improve your internet speed and security. However, it’s important to note that not all DNS servers are created equal. Some DNS servers are faster than others, and some are more secure.
If you’re looking for a faster DNS server, Google DNS and OpenDNS are both good options. If you’re concerned about security, Cloudflare DNS is a good option.
Ultimately, the best DNS server for you will depend on your individual needs and preferences.
Here are some additional resources that you may find helpful:
- Google Public DNS documentation
- OpenDNS support article on how to change your DNS server
- Cloudflare DNS website
Here are some additional resources that you may find helpful: