DNS is easy to ignore until you realize how much your device actually asks it. Type a website name, open an app, tap a link, your device needs to find the right server first. A DNS resolver handles that lookup, so it gets a small glimpse of where you’re trying to go.
That makes security matter. 1.1.1.1 stands out because Cloudflare built it around encrypted DNS and stronger privacy commitments rather than treating DNS as a basic lookup service.
The Big Difference Is Encryption
Regular DNS traffic often goes out unencrypted. Someone between your device and the resolver can potentially see or interfere with those requests. The website itself might use HTTPS, but that doesn’t automatically hide the DNS lookup that happened first.
1.1.1.1 supports DNS over HTTPS and DNS over TLS, both encrypt the connection between your device and Cloudflare’s resolver. DoH sends the request through HTTPS on port 443, DoT uses TLS on port 853.
Matters most on networks you don’t fully control, public Wi-Fi being the obvious example. Your DNS requests aren’t just sitting there for anyone on the network path to read or alter.
Privacy Is Part of the Security Story
Encryption protects the trip to the resolver. Privacy controls what happens once the request arrives.
Cloudflare says it doesn’t sell or share personal data from the public resolver with third parties for advertising, and that source IP addresses aren’t stored long-term, apart from a limited sampled process used for troubleshooting and attack mitigation. Logs get deleted within 25 hours.
Pretty meaningful difference if you’re choosing a DNS provider based on privacy rather than just speed.
It Can Also Reduce DNS Tampering
DNS manipulation isn’t some movie-style attack, it can be much simpler. Unprotected DNS traffic means an attacker or network operator can potentially modify a response and send your device somewhere it wasn’t expecting.
Encrypted DNS helps prevent that kind of eavesdropping and tampering between your device and the resolver. Cloudflare also supports DNSSEC validation, another layer checking that DNS info hasn’t been improperly altered.
There Is an Extra Privacy Option
For people wanting even more separation, Cloudflare supports Oblivious DNS over HTTPS, splitting the job between a proxy and the resolver so no single party sees both your IP address and the DNS query.
Clever idea. Trade-off is ODoH’s more specialized, and Cloudflare’s own documentation still calls the standard experimental.
So, Is 1.1.1.1 More Secure?
Comparing public DNS services, don’t judge them just by the IP address you type in. Look at whether encryption’s supported, how resolver data’s handled, and what protections exist against tampering.
1.1.1.1 checks those boxes with DoH, DoT, DNSSEC support, and published privacy commitments. Once encrypted DNS is working properly, you tend to stop noticing it, which is probably the nicest thing about this kind of security.