DNS over HTTPS (DoH) enhances your online privacy and security by encrypting your DNS queries. Instead of sending your DNS requests in plain text (which can be intercepted), DoH sends them over HTTPS, the same secure protocol used for websites like this one. This prevents your internet service provider (ISP) and other potential eavesdroppers from seeing which websites you visit.
Unfortunately, Apple doesn't offer a built-in setting for DoH in iOS. You'll need to use a third-party method. Here are the most common approaches:
Many VPN providers now incorporate DoH into their services. This is often the easiest and most effective method. When you connect to a VPN, all your network traffic, including DNS requests, is routed through the VPN's servers. If the VPN uses DoH, your queries are encrypted. Check your VPN app's settings or documentation to see if it supports DoH. Popular VPNs that often support DoH include NordVPN, ExpressVPN, and Surfshark.
Advantages: Simple setup, often includes other privacy features.
Disadvantages: Requires a VPN subscription, adds an extra layer of network traffic.
iOS allows you to specify a custom DNS server. You can use a DNS provider that supports DoH. While not all providers advertise it explicitly, many use DoH by default. You will need to find a provider that supports DoH and then manually input their address.
Example (Cloudflare): Cloudflare's 1.1.1.1 is a popular and well-regarded DNS service that supports DoH. However, you're not explicitly enabling DoH through this method; Cloudflare uses it by default. Note that the IP addresses are not necessarily tied directly to the DoH protocol.
How to Configure:
1.1.1.1 for Cloudflare).Advantages: No VPN subscription needed, generally a straightforward process.
Disadvantages: Requires research to find a reliable DoH provider and manually configuring the settings. This doesn't guarantee DoH, as it depends on the provider's configuration.
Some modern routers allow you to configure DoH directly within their settings. If your router supports it, this will protect all devices on your network, not just your iPhone. Consult your router's documentation to see if DoH is a configurable option.
Advantages: Protects all devices on the network, often a single configuration point.
Disadvantages: Requires a compatible router, potentially more technical setup.
When selecting a DNS provider, consider factors such as privacy policy, speed, and reputation. Research providers carefully before making your choice. Read reviews and check for transparency in their data handling practices.
While DoH generally improves privacy and security, there is a slight chance you might experience some website loading issues after enabling it. If this occurs, try switching back to your previous DNS settings or trying a different DoH provider.
Enabling DoH on your iPhone enhances your online privacy and security. Choose the method that best suits your technical skills and comfort level, and remember to select a reputable DNS provider.