DNS and a VPN aren’t alternatives. DNS is part of how the internet works, and you’re using it right now, whether or not you have a VPN. The real question is what changing your DNS settings achieves, and where those changes stop being enough.
Short version: a different DNS resolver can get you past some blocked websites. Smart DNS can get you into foreign streaming libraries. Only a VPN hides what you’re doing from the network you’re on.
DNS vs Smart DNS vs VPN: Differences Explained
| Feature | Changing your DNS | Smart DNS | VPN |
|---|---|---|---|
| Hides your IP | No | No | Yes |
| Encrypts traffic | Queries only, with DoH or DoT | No | Yes, everything |
| Opens geo-blocks | No | Yes, for supported services | Yes, plus censorship |
| Gets past DNS blocks | Yes | Yes | Yes |
| Speed cost | None | Negligible | Small, minimal on modern protocols |
| Public Wi-Fi safety | No | No | Yes |
| Works in China | No | No | Yes, with obfuscation |
| Consoles and TVs | Yes | Yes | Via router only |
| Setup | Manual, one-off | Manual, per device | Install an app |
What is DNS?
DNS, the Domain Name System, is the internet’s address book. Type bbc.com and DNS translates it into the IP address your device connects to. Without it, you’d be memorising numbers. Your ISP assigns your DNS resolver by default, which means it sees every domain you look up and can refuse to resolve the ones it doesn’t want you reaching. Switching to a third-party resolver such as Cloudflare, Quad9, or Google changes who answers those queries.
✅ What that fixes: websites blocked at the DNS level, which is how a lot of ISP-level and workplace filtering is done. If your ISP simply refuses to look up a domain, a different resolver will.
❌ What it doesn’t fix: geo-blocking. Netflix and BBC iPlayer check your IP address, not your DNS resolver. Changing where your lookups go doesn’t move your location, so a different resolver alone opens no foreign catalogues.
Encrypted DNS: DoH and DoT
Most still say DNS has no encryption. That stopped being true years ago.
DNS over HTTPS (DoH) and DNS over TLS (DoT) encrypt the lookup itself, so your ISP can’t read which domains you’re requesting. Firefox and Chrome support DoH, Windows 11 has it built in, and Android calls its version Private DNS.
The limit matters. Encrypted DNS hides the question, not the answer or anything after it. Your ISP still sees the IP address you connect to next, still sees how much data moves, and your real location is still attached to every request. It’s a meaningful privacy improvement, and it is not a substitute for a tunnel.
What is Smart DNS?
Smart DNS is a different technology that happens to share a name. Rather than simply resolving domains, it routes the parts of a connection that reveal your location through a proxy in another country, while your normal traffic takes its usual path. The result is a streaming service that believes you’re elsewhere, without your IP changing for everything else you do.
That trade-off is deliberate. Smart DNS applies no encryption, so it costs almost nothing in speed, and your ISP, network administrator, and anyone sharing the Wi-Fi still see everything you do. Its strength is hardware. Consoles, older Smart TVs, and streaming sticks that won’t accept a VPN app can take Smart DNS settings.
What is a VPN?
A VPN encrypts everything leaving your device and sends it through a server elsewhere. Your ISP sees an encrypted connection to that server and nothing about what’s inside it, while websites see the server’s address rather than your own IP. That covers three things Smart DNS can’t:
- Public Wi-Fi. Traffic on a café or hotel network becomes unreadable to anyone else on it.
- ISP visibility. Your provider can log that you used a VPN, not which sites you visited.
- Censorship. Obfuscation makes the tunnel resemble everyday web traffic, which is how people stay online in China, Iran, and the UAE. Smart DNS achieves nothing against a national firewall.
Our explainer on how VPNs work covers the mechanics. A VPN improves your privacy; it does not make you anonymous. Your account logins, browser fingerprint, and cookies identify you regardless of which IP address you arrive from.
What About SmartPlay and MediaStreamer?
Both are worth explaining accurately, because the marketing muddles them. NordVPN’s SmartPlay is Smart DNS technology built into the VPN apps. Connect to any NordVPN server, and it handles streaming DNS automatically, with nothing to configure. Your VPN connection is encrypted, though the encryption comes from the VPN tunnel, not from SmartPlay itself.
ExpressVPN’s MediaStreamer works the same way and is also offered as a standalone Smart DNS you configure on a console or television. Used inside a VPN app, these give you streaming access plus encryption. Configured directly on a device with no VPN active, they give you streaming access and nothing else. Same feature name, very different privacy outcome.
Which One Should You Use?
- Change your DNS resolver if your ISP is blocking sites at the DNS level, or you want lookups off your provider’s logs. Turn on DoH or DoT while you’re there. It costs nothing and takes five minutes.
- Use Smart DNS if a foreign streaming library on a device with no VPN support is the entire requirement. It suits a PlayStation or an ageing television, and it shields nothing.
- Use a VPN for anything involving privacy, public Wi-Fi, censorship, or streaming across several regions. It’s also the only one of the three that lets you switch Netflix regions and keep your traffic private at the same time.
For most, a VPN is the sensible default, since it covers what the other two do and adds what they can’t. Modern protocols like NordLynx and Lightway made the old speed argument academic. Our Android VPN comparison covers mobile, and our full rankings cover the rest.
DNS vs VPN: Final Thoughts
Changing your DNS is worth doing regardless. It’s free, it takes minutes, and encrypted DNS keeps your lookups off your ISP’s records. It won’t unblock Netflix, and Smart DNS will, on exactly the devices that need it most. Neither hides anything you do. If you want streaming access on a console and nothing more, Smart DNS is the cheaper, faster tool.
If you want your connection private on a hotel network, past a national firewall, or off your ISP’s logs, a VPN is the only one of the three that does the job.
Frequently Asked Questions
🤝 Can I use Smart DNS and a VPN simultaneously?
Yes, when the Smart DNS is built into the VPN, as with NordVPN's SmartPlay and ExpressVPN's MediaStreamer. Configuring a third-party Smart DNS by hand while a VPN is active tends to cause conflicts, since both are altering the same connection settings.
🚫 Can a VPN be detected and blocked?
Yes. Netflix, Hulu, and BBC iPlayer operate VPN detection, and some countries block VPN protocols at network level. Obfuscated servers in NordVPN and ExpressVPN disguise the traffic to get around both.
🤫 Does changing DNS hide activity from ISP?
Only partially. DoH or DoT encrypts the lookup, so the ISP cannot read which domains are being requested. It still sees every IP address connected to afterwards, which usually reveals the destination anyway. A VPN closes that gap.
🔴 Which is better for streaming, a VPN or Smart DNS?
Smart DNS is faster and the only option on devices that reject VPN apps; consoles and older televisions. A VPN unblocks more geo-restricted content across more services and encrypts the connection while doing it. Anyone streaming on a phone, laptop, or modern TV is better served by a VPN.
⭐ Can Smart DNS unblock BBC iPlayer?
Usually yes, and it is the standard approach on a console or older Smart TV that can't install a VPN. A guide to watching BBC iPlayer abroad covers both. iPlayer's detection is among the more aggressive, so a VPN maintaining its own Smart DNS performs more reliably than a free third-party one.