DNS over HTTPS (DoH) is a privacy-enhancing technology that encrypts your DNS queries, hiding your browsing activity from your internet service provider (ISP) and potential eavesdroppers. Instead of sending your DNS requests in plain text over port 53 (the standard DNS port), DoH uses HTTPS (port 443), the same protocol used for secure websites. This means your DNS queries are encrypted and protected from interception.
Several reputable organizations offer public DoH resolvers. Choosing the right one depends on your priorities (speed, privacy features, location etc.). Here are a few examples:
The method for configuring DoH varies depending on your operating system and device. Generally, you can configure it through your operating system's network settings, your router, or your browser.
This usually involves changing the DNS server addresses in your network settings to the DoH resolver's address. However, simply changing the DNS server to a DoH provider's IP address doesn't guarantee DoH usage – your OS may need explicit DoH support. Many modern operating systems now offer this directly within network settings. Consult your OS documentation for specific instructions.
Most modern browsers (Chrome, Firefox, Edge) support DoH. You can usually find the setting in the browser's advanced settings or privacy settings. Enabling DoH in the browser only affects the DNS queries made by that browser.
Configuring DoH on your router ensures that all devices on your network use DoH. The process varies greatly depending on your router's model and firmware. Consult your router's manual for detailed instructions. This is often the most convenient method for ensuring all devices benefit from DoH's privacy enhancements.
The best DoH resolver for you will depend on your specific needs and priorities. Consider the following factors:
By understanding the benefits and considerations of DoH, you can choose the best resolver to enhance your online privacy and security.