Browser Settings

Setting Up ADnull DNS in Chrome

This guide explains how to enable DNS over HTTPS (DoH) in the Chrome browser and route requests through your personal ADnull DNS. Step 1. Open Chrome Settings Click the three dots ⋮ in the top right corner → Settings. Step 2. Go to the Security section Privacy and security → Security. Step 3. Enable secure DNS Find Use secure DNS → enable the toggle → in the Select DNS provider dropdown choose Add custom DNS service provider. Step 4. Enter the DoH address Paste the address into the Enter custom DNS query URL field: https://YOUR-SUBDOMAIN.dns.adnull.com/dns-query Replace YOUR-SUBDOMAIN with your personal subdomain — it is shown in the Settings section of your ADnull account. Press Enter or click outside the field — the setting is saved automatically. Done! Chrome now uses ADnull DNS. Ads and trackers are blocked at the DNS level in your browser. FAQ Where do I find my subdomain? Go to the Settings section in your ADnull account — the subdomain is shown in the "DNS Domain" card. DoH was not applied after saving Restart Chrome and make sure the toggle is enabled and the address is entered without spaces. Does this work on mobile Chrome (Android/iOS)? On Android — yes. On iOS, Chrome uses the system DNS and does not support DoH in browser settings. Use the Apple profile from the Settings section instead.

Setting Up ADnull DNS in Firefox

This guide explains how to enable DNS over HTTPS (DoH) in the Firefox browser and route requests through your personal ADnull DNS. Step 1. Open Firefox Settings Click the three horizontal lines ☰ in the top right corner → Settings. Step 2. Go to Privacy & Security Select Privacy & Security from the left menu. Step 3. Find the DNS over HTTPS section Scroll down to the DNS over HTTPS section → enable it → select the protection level Max Protection or Increased Protection → in the Provider field choose Custom. Step 4. Enter the DoH address Paste the address into the Custom field: https://YOUR-SUBDOMAIN.dns.adnull.com/dns-query Replace YOUR-SUBDOMAIN with your personal subdomain — it is shown in the Settings section of your ADnull account. Settings are saved automatically. Done! Firefox now uses ADnull DNS. Ads and trackers are blocked at the DNS level in your browser. FAQ Where do I find my subdomain? Go to the Settings section in your ADnull account — the subdomain is shown in the "DNS Domain" card. DoH was not applied after configuration Restart Firefox. Also make sure that no proxy or VPN in your network settings is intercepting DNS requests. What is the difference between Max Protection and Increased Protection? Max Protection — all DNS requests go through DoH; if DoH is unavailable, Firefox will block the connection. Increased Protection — DoH is used when possible, but falls back to the system DNS if needed.

Setting Up ADnull DNS in Microsoft Edge

This guide explains how to enable DNS over HTTPS (DoH) in the Microsoft Edge browser and route requests through your personal ADnull DNS. Step 1. Open Edge Settings Click the three dots ⋯ in the top right corner → Settings. Step 2. Go to Privacy, search, and services Select Privacy, search, and services from the left menu. Step 3. Find the Security section and enable secure DNS Scroll down to the Security section → find Use secure DNS → enable the toggle → select Choose a service provider → from the dropdown choose Custom. Step 4. Enter the DoH address Paste the address into the field: https://YOUR-SUBDOMAIN.dns.adnull.com/dns-query Replace YOUR-SUBDOMAIN with your personal subdomain — it is shown in the Settings section of your ADnull account. Click Save. Done! Microsoft Edge now uses ADnull DNS. Ads and trackers are blocked at the DNS level in your browser. FAQ Where do I find my subdomain? Go to the Settings section in your ADnull account — the subdomain is shown in the "DNS Domain" card. DoH was not applied after saving Restart Edge and make sure the address is entered without spaces and starts with https://. Is DoH supported in Edge on mobile? Edge on Android supports DoH in browser settings. On iOS, Edge uses the system DNS — use the Apple profile from the Settings section instead.

Setting Up ADnull DNS for Safari

Safari does not support DNS over HTTPS (DoH) at the browser level. DNS is configured at the system level via an Apple configuration profile. This means protection covers all device traffic — including Safari, Mail, App Store, and every other app. How to configure Download and install the ADnull profile directly from the Settings section of your ADnull account — in the Apple card. iPhone and iPad 1. Click the Apple Mobileconfig button in the Apple card 2. Open Settings → a "Profile Downloaded" banner will appear → tap it 3. Tap Install → confirm with your device passcode 4. Tap Install again to confirm 5. Tap Done Mac 1. Click the Apple Config for macOS button in the Apple card — a script will be downloaded 2. Open Terminal and run the command shown in the dialog 3. Enter your administrator password and press Enter Done! ADnull DNS is now active for the entire device. Safari and all other apps are protected — ads and trackers are blocked automatically. FAQ Why doesn't Safari have its own DoH settings? Apple implemented DoH support at the operating system level (iOS 14+, macOS Big Sur+), not in individual apps. The profile therefore protects the entire device, not just the browser. Is it safe to install the profile? Yes. The profile only changes the device's DNS server. It has no access to your data, passwords, or encrypted traffic. How do I check that DNS is working? Click the Check connection button in the Settings section of your ADnull account.

Setting Up ADnull DNS in Opera

This guide explains how to enable DNS over HTTPS (DoH) in the Opera browser and route requests through your personal ADnull DNS. Step 1. Open Opera Settings Click the O logo in the top left corner → Settings, or open a new tab and go to: opera://settings Step 2. Go to Advanced settings Click Advanced in the left menu → Privacy & security. Step 3. Find Use secure DNS Find the Use secure DNS option → enable the toggle → select Specify (or Other provider). Step 4. Enter the DoH address Paste the address into the field: https://YOUR-SUBDOMAIN.dns.adnull.com/dns-query Replace YOUR-SUBDOMAIN with your personal subdomain — it is shown in the Settings section of your ADnull account. Click Save. Done! Opera now uses ADnull DNS. Ads and trackers are blocked at the DNS level in your browser. FAQ Where do I find my subdomain? Go to the Settings section in your ADnull account — the subdomain is shown in the "DNS Domain" card. DoH was not applied after saving Restart Opera. Also make sure Opera's built-in VPN is disabled — it can conflict with DoH settings. Does Opera's built-in VPN affect DoH? Yes. If Opera's built-in VPN is enabled, DoH may not work correctly. Disable Opera VPN in settings and test DoH again.

Setting Up ADnull DNS in Brave

This guide explains how to enable DNS over HTTPS (DoH) in the Brave browser and route requests through your personal ADnull DNS. Step 1. Open Brave Settings Click the three horizontal lines ☰ in the top right corner → Settings. Step 2. Go to the Security section Privacy and security → Security. Step 3. Find Secure DNS Find Use secure DNS → enable the toggle → select With → from the dropdown choose Custom (Other). Step 4. Enter the DoH address Paste the address into the field: https://YOUR-SUBDOMAIN.dns.adnull.com/dns-query Replace YOUR-SUBDOMAIN with your personal subdomain — it is shown in the Settings section of your ADnull account. Click Save. Done! Brave now uses ADnull DNS. Ads and trackers are blocked by both Brave's built-in blocker and ADnull DNS simultaneously. FAQ Where do I find my subdomain? Go to the Settings section in your ADnull account — the subdomain is shown in the "DNS Domain" card. DoH was not applied after saving Restart Brave and make sure the address is entered without spaces and starts with https://. What is the difference between Brave's blocker and ADnull DNS? Brave's blocker works at the webpage content level (hides elements). ADnull DNS blocks domains at the network level — before the page even loads. Together they provide double protection.