DNS over HTTPS: What it Does and Whether You Need It
DNS over HTTPS, also known as DoH, is a relatively new technology that aims to improve the security and privacy of your internet browsing. But what exactly does it do, and do you really need it? In short, DoH encrypts your DNS queries, making it harder for others to intercept and manipulate your internet traffic. However, whether you need it depends on your specific situation and concerns.
What is DNS and How Does it Work?
Before diving into DoH, it’s essential to understand what DNS (Domain Name System) is and how it works. DNS is like a phonebook for the internet, translating human-readable domain names into IP addresses that computers can understand. When you type a URL into your browser, your device sends a DNS query to a DNS resolver, which then returns the corresponding IP address. This process is usually done over UDP port 53, which is not encrypted.
How Does DNS over HTTPS Work?
DoH works by encrypting your DNS queries using the HTTPS protocol, which is the same protocol used to secure your web browsing. This means that your DNS queries are sent over a secure connection, making it much harder for others to intercept and manipulate your internet traffic. DoH uses TCP port 443, which is the same port used for HTTPS traffic, making it more difficult to block or filter.
Benefits of DNS over HTTPS
The main benefits of DoH are improved security and privacy. By encrypting your DNS queries, you protect yourself from various types of attacks, such as DNS spoofing and man-in-the-middle attacks. Additionally, DoH makes it harder for your internet service provider (ISP) or other third parties to collect and sell your browsing data.
Do You Need DNS over HTTPS?
Whether you need DoH depends on your specific situation and concerns. If you’re using a public Wi-Fi network or living in a country with strict internet censorship, DoH can provide an additional layer of security and privacy. However, if you’re using a secure home network or a reputable ISP, the benefits of DoH might be limited.
How to Enable DNS over HTTPS
Enabling DoH is relatively straightforward. Most modern web browsers, such as Google Chrome and Mozilla Firefox, support DoH and allow you to enable it in their settings. You can also enable DoH on your operating system level, either by using a third-party DNS service or by configuring your network settings.
Conclusion and Next Steps
In conclusion, DNS over HTTPS is a useful technology that can improve the security and privacy of your internet browsing. However, whether you need it depends on your specific situation and concerns. If you’re using a public Wi-Fi network or living in a country with strict internet censorship, DoH can provide an additional layer of security and privacy. To get started with DoH, you can enable it in your web browser or operating system settings.
Bottom Line
To summarize, DNS over HTTPS is a technology that encrypts your DNS queries, making it harder for others to intercept and manipulate your internet traffic. While it provides an additional layer of security, it’s essential to remember that it’s not a replacement for other security measures. By understanding what DoH does and whether you need it, you can make an informed decision about whether to enable it on your devices. As with any security measure, it’s crucial to stay informed and adapt to new technologies and threats. For more information on security and technology, check out our articles on How To Automate Repetitive Tasks On Windows Without Coding and Smart Home Hub Matter Standard What It Means For Your Devices.
Alex Chen is a technology analyst with 8 years of experience reviewing consumer electronics.
Last reviewed: May 21, 2026