DNS over HTTPS vs DNS over TLS: Which Is Better?

The encrypted DNS decision

Every time a device on your network looks up a domain name, it sends a DNS query. On many home routers, that query leaves your network without encryption, which means anyone who can observe the traffic between your router and the DNS resolver can see which domains are being requested. That includes someone on the same Wi-Fi, a device on the path between you and the internet, or software at the network level. Encrypted DNS closes this gap by protecting the lookup itself. For a quick refresher on how DNS works on a router, see DNS on router.

Two methods are common on routers: DNS over TLS (DoT) and DNS over HTTPS (DoH). Both wrap DNS queries in an encrypted connection so a local eavesdropper cannot read them. The main difference is not the strength of the encryption but how the encrypted traffic is presented to the network. The practical question is which method your router supports and which encrypted DNS resolver you can use with it.

How DNS over TLS works

DNS over TLS uses the TLS cryptographic protocol to create a dedicated encrypted tunnel for DNS. The router connects to a DNS resolver over its own TLS connection, and every query and response stays inside that tunnel. A network observer can see that a device is talking to a DNS resolver, but cannot see the names being queried.

For router shoppers, this is straightforward. If a router has a DNS over TLS setting, you enter the resolver address and the router uses an encrypted DNS connection for the whole network. On many routers, this is still the simplest way to get encrypted DNS on every device without configuring each phone, laptop, or smart home gadget individually.

DoT is also a good match for people who want a clear, separate DNS privacy layer. If you already understand how DNS is configured on a router, DoT is close to that model. The difference is only that the connection to the resolver is encrypted.

How DNS over HTTPS works

DNS over HTTPS sends DNS queries through the same HTTPS protocol used by normal web browsing. The query travels inside an HTTPS request to a DNS resolver that offers an HTTP-based API. Because it looks like ordinary web traffic, network software has a harder time distinguishing a DNS lookup from a webpage request. That is why DoH is useful on networks where DNS on a separate connection might be blocked or redirected.

On a router, DoH usually appears in the WAN or internet settings. You enter a resolver URL and the router sends DNS queries to it over HTTPS. Some routers only use DoH for the router's own management and diagnostic lookups, while others apply it to all DNS traffic on the LAN. If you want router-wide privacy, confirm that the setting applies to client DNS traffic and not just the router itself.

DoH can also be convenient if you already trust your DNS resolver's HTTPS endpoint. The encryption is the same type of protection used for secure websites, and it works with typical firewall and NAT configurations because it runs over the same channel as web traffic.

DNS over TLS vs DNS over HTTPS: what differs

When you compare them directly, the security outcome is the same: DNS queries are encrypted and protected from passive eavesdropping. The differences are in visibility, blocking, and setup.

Both are legitimate options for a home network. The distinction matters most when a network operator applies different policies to dedicated DNS traffic and general web traffic. On most home connections, that policy is not present, so either method will protect your lookups from nearby snooping.

Router support and setup

Before choosing, check the router's firmware. Encrypted DNS support is often found in the WAN, internet, or DNS settings, and the wording varies by manufacturer. Some routers label it simply as DNS over TLS or DNS over HTTPS. Others hide it under advanced settings. If you do not see an encrypted DNS option, updating the router firmware is the first move, because these features are often added after a router is released. See router firmware updates explained for why firmware versions matter.

Then match the router setting to a compatible resolver. Encrypted DNS works alongside other security measures. Securing the wireless network with WPA3 and keeping the router firmware current are separate layers that also matter. Together they form a more complete router security basics plan. If you also want a separate encrypted tunnel for all traffic, a VPN on router is another layer to consider.

• Choose a resolver that supports the same protocol. A DoT setting requires a resolver with a DoT endpoint; a DoH setting requires a resolver URL.
• If the router has both options, start with the one the resolver documentation recommends. Many public resolvers provide either method.
• Apply the setting, then recheck the DNS test page or router status to confirm the encrypted connection is active.

Which should you pick?

For a normal home router, pick the protocol that appears in the router's DNS settings and matches a resolver you want to use. If you value simple setup, DNS over TLS is often the clearer choice. If you need DNS privacy on a network that may filter dedicated DNS traffic, DNS over HTTPS is the better fit because it resembles web traffic.

Do not let the comparison become a reason to postpone. Any encrypted DNS option is better than leaving queries in clear text. If your router supports neither, a travel router or a newer router with more advanced DNS settings can bring the feature to all devices. You can also learn more about the order of operations in DNS on router.

What to pick for your use

Questions

Which is better: DNS over TLS or DNS over HTTPS?

For most home users, the better choice is whichever one your router and DNS resolver support. Both encrypt DNS queries to stop local snooping. DNS over TLS is often simpler to set up, while DNS over HTTPS is harder for network filters to distinguish from web traffic.

Does encrypted DNS hide my browsing from my internet provider?

No. It hides the domain names in DNS queries, but your internet provider can still see the IP addresses your devices connect to and the flow of traffic. Encrypted DNS is a privacy layer, not a way to hide all internet use.

Why would a router offer both DoT and DoH?

Routers often add both so they can work with different resolvers and network environments. DoT is useful on networks that allow DNS on the dedicated TLS connection, while DoH works where the network expects only HTTPS-style traffic. Having both lets you choose the one that is not blocked.

Does DNS over HTTPS slow down normal browsing?

The DNS connection itself adds a setup step, but once it is established the impact on everyday browsing is usually minor. Your internet connection speed and Wi-Fi link have a larger effect on perceived performance.

What if my router does not have an encrypted DNS setting?

First update the firmware and check the WAN or internet settings again. If encrypted DNS is still missing, you can either use a router that supports it or configure encrypted DNS on individual devices. Router-level support is the easiest way to cover everything on the network.

Can I use DoH with any DNS resolver?

No, you need a resolver that offers an HTTPS endpoint. The router must also have a DoH setting that supports the resolver's URL. It is a small compatibility point, but important.