How to change DNS settings on your phone and computer

DNS is the service that turns the domain name you type into an IP address your device can reach. By default you use your internet provider's resolver, which is why some pages feel slow to start loading, why lookups occasionally stall, and why plain DNS queries travel across the network in the clear.

Changing your DNS address is not a reinstall: it is a single settings field, and you can undo it in under a minute. This guide covers the steps on Android, iPhone, Windows 11 and the router itself, along with encrypted DNS (DoT/DoH) options and the filtered addresses that help on family devices.

Menu names vary a little between brands and versions; the paths below follow the on-screen labels used in the manufacturers' own documentation.

1. Pick the DNS addresses and write them down Several free public resolvers exist; they all do the same job and differ in filtering and encryption options. Cloudflare: 1.1.1.1 and 1.0.0.1, hostname one.one.one.one for encrypted use. Google Public DNS: 8.8.8.8 and 8.8.4.4, hostname dns.google. Quad9: 9.9.9.9 and 149.112.112.112, hostname dns.quad9.net. Enter both addresses of one provider: if the first does not answer, the second takes over.
2. Turn on Private DNS on Android Open the Settings app, go to Network and Internet and tap Private DNS. If you cannot find it, search for "Private DNS" in settings. Three options appear: Off, Automatic and Private DNS provider hostname. Choose the third one, type the hostname you noted in the previous step and tap Save. This encrypts DNS traffic (DNS over TLS) and applies to every connection, Wi-Fi and mobile data alike.
3. Change the DNS of a Wi-Fi network on iPhone and iPad Go to Settings, tap Wi-Fi, tap the info (ⓘ) button next to the network you are on, and open the DNS configuration row in the list that appears. Switch from automatic to manual entry, delete the servers already listed, then add your primary and secondary addresses one by one and save. This setting applies only to that Wi-Fi network, so repeat it per network; it does not cover mobile data.
4. Enter DNS servers manually on Windows 11 Open Start, then Settings, then Network & Internet, select the connection you use (Wi-Fi or Ethernet) and open the properties of the network you are connected to. Select Edit next to DNS server assignment; on some versions this row sits under IP assignment. Switch from Automatic (DHCP) to Manual, turn on IPv4 and type your two addresses into the Preferred DNS and Alternate DNS boxes. The change takes effect as soon as you select Save.
5. Enable encrypted DNS (DNS over HTTPS) on Windows 11 In the same Edit pane, look at the DNS over HTTPS list below the address boxes. Off sends queries unencrypted; On (automatic template) encrypts them over HTTPS and discovers the template itself; On (manual template) uses a template you type in. The Fallback to plaintext switch below it decides what happens when HTTPS is unavailable: on means the query still goes out unencrypted, off means it is not sent at all. The list only becomes available for resolver addresses Windows already knows, and the three providers from step one are on that list.
6. Change it on the router for the whole home network To avoid touching every device, change DNS on the router: from a device on the network, type the router's interface address into a browser (usually 192.168.1.1 or 192.168.0.1; the exact one is on the label underneath), sign in with the admin credentials and find the DNS fields in the LAN or DHCP server section. Switch from the provider's automatic DNS to manual entry, type the two addresses and save. The router restarts, and you may need to toggle Wi-Fi off and on on your phones and computers afterwards. Menu names differ by brand, so check your own router's manual.
7. Use filtered addresses on family devices Some providers offer filtered address pairs on the same infrastructure. Cloudflare's malware-blocking pair is 1.1.1.2 and 1.0.0.2 (hostname security.cloudflare-dns.com); the pair that also blocks adult content is 1.1.1.3 and 1.0.0.3 (hostname family.cloudflare-dns.com). When a blocked domain is requested, 0.0.0.0 is returned instead of the real address and the page does not open. Quad9's 9.9.9.9 also filters malicious domains, while 9.9.9.10 is the unfiltered variant. DNS filtering does not reach in-app content or other encrypted paths, so it is not parental control on its own.
8. Verify the change On Windows, open Command Prompt and run "nslookup yudum.net": the Server line at the top of the output should now show your new DNS address. On a phone, reopen the settings screen to confirm the entry was saved, then load a few sites. If nothing opens, you probably mistyped one of the addresses, so check the fields again.
9. Undo it if you do not like the result On Android, go to Settings, Network and Internet, Private DNS and choose Automatic (or Off). On iPhone, return to the same Wi-Fi info screen and set the DNS configuration back to automatic. On Windows 11, open the DNS edit pane and choose Automatic (DHCP) instead of Manual; that returns both IP and DNS to whatever the network hands out. On a router, clear the DNS fields or switch back to obtaining them automatically from your provider. Nothing here is permanent; every step is reversible.

⚠ This guide is general information. Yudum cannot be held responsible for the outcome of following it; for official procedures always rely on the institution's own statement. Steps and fees change over time.

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