Recommended Free Tools
iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Android: open Settings → Network & internet (or Wi‑Fi & Internet) → Advanced → Private DNS, choose Private DNS provider hostname, enter dns.adguard-dns.com, and tap Save. On iPhone, install and enable a DNS configuration profile or the filtering provider’s app; iOS normally does not offer an Android-style hostname box.
DNS ad blocking works by stopping your device from resolving domains that appear on an ad, tracker, malware, or other selected blocklist. It can remove many third-party requests across browsers and apps, but it cannot reliably eliminate every ad—especially ads served from the same hostname as wanted content, or ads delivered without a separate DNS request. The encrypted DNS connection also protects DNS lookups in transit; it does not make every part of your browsing anonymous.
What private DNS ad blocking does
Every time an app or website needs to contact a hostname, such as an analytics, advertising, or content server, the device normally asks a DNS resolver for that hostname’s IP address. A filtering DNS service checks the request against its lists before answering. If the domain is listed, the resolver returns a blocking response instead of the destination address, so the connection cannot start.
On Android, the built-in Private DNS setting uses DNS-over-TLS (DoT). The DNS query is encrypted between the phone and a compatible resolver, rather than sent as readable DNS traffic on the local network. This is transport encryption for DNS only: the resolver can still see the queries it handles, and the rest of an HTTPS session is governed by HTTPS and the app or browser’s own privacy controls.
#1 Best Overall
- Powerful Turbo Fan:CAGIWIRU Electric Air Duster have reached speed up to 130000RPM,Can efficient remove dust and debris.With LED light and Three Adjustable Speed to meet with different cleaning tasks.
- With Attached USB C Fasting Charging cable.Charing 3 hours,Enjoy up to 240 minutes of use on the lowest setting, For third speed can use for 25mins.with four charging options to meet with your needs.
- Wide Application: attached 5 different nozzles,making it suitable for a variety of scenes, such as car,pet, pc, keyboards, and other electronic devices. It also serves for office and home clean duster.
- Handy Design & Portable:Cordless air duster electric nozzle is Light weight and small size, design and comfortable to hold and space saving, convenient to carry around. You can put it in your room or inside the car without taking up space.
- Economical &Reusable: Built durable materials with a long-lasting battery,our CAGIWIRU air duster it's a sustainable alternative to disposable air cans.
Filtering is determined by the provider, its selected lists, and any rules you add. A general server can block advertising and tracking domains; a family server may also block adult domains and enable Safe Search or Safe Mode where the service supports those controls. A non-filtering server provides encrypted DNS without ad blocking.
Before you change the setting
- Make sure the phone is already online through Wi‑Fi or mobile data. A hostname cannot be validated if the device has no working connection.
- Copy the provider hostname exactly. It is a DNS-over-TLS name, not a numeric IP address and not a web address beginning with
https://. - Decide whether you want a fixed public policy or an account-managed service. A public hostname is quick to install; an account-based service may offer custom blocklists, allowlists, user rules, and query logs.
- Know how to undo the change. On Android you can return Private DNS to Automatic. On iPhone you can disable or remove the installed profile in Settings → General → VPN & Device Management (the exact wording can vary by iOS release).
- Keep another way to reach support or documentation available. A badly configured resolver can make websites and apps appear offline even though the network itself is working.
Set up ad-blocking Private DNS on Android
Use the built-in Private DNS menu
- Open Settings.
- Open Network & internet or Wi‑Fi & Internet. The label depends on the phone maker and Android release.
- Tap Advanced, then Private DNS. If you cannot see it, use the Settings search field and search for Private DNS.
- Select Private DNS provider hostname.
- Enter the filtering provider’s hostname. For the standard public AdGuard DNS server, type
dns.adguard-dns.com. Do not add spaces, quotation marks, a protocol, or a trailing slash. - Tap Save.
After saving, open a few sites and apps that you use regularly. A page that loads without its usual advertising domains, or an app that displays fewer trackers in its own diagnostics, indicates that filtering is active; the exact result depends on the provider’s lists and the content being requested.
Use a personal server hostname when you need account controls
Some providers issue a device-specific hostname tied to your account and policy. In the AdGuard DNS format documented for personal servers, the hostname is {Your_Device_ID}.d.adguard-dns.com. Replace the text inside the braces with the device identifier supplied in your account; do not type the braces themselves unless the provider explicitly includes them as part of the identifier. A personal hostname can apply your own blocklists, allowlists, and rules instead of the public server’s fixed policy.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
What Android’s Automatic mode means
Automatic is not the same as an ad-blocking server. Android uses the network-provided DNS settings in this mode. On Android P (Android 9), the system attempts to use DNS-over-TLS on port 853 when the network resolver supports it, then can fall back to ordinary UDP DNS on port 53. Automatic mode therefore does not guarantee filtering or encrypted DNS on every network. Selecting a provider hostname explicitly tells Android which DoT resolver to use.
Rank #2
- Screen Cleaner is Your Screen’s New Bestfriend! - EVEO is proud to present a screen cleaner that’s perfectly suited for your TV. Meet your new screen cleaner, computer screen cleaner, laptop cleaner, iPad cleaner, Macbook,tv cleaner or any other electronic device. Our screen cleaner spray and wipe along with the included plush microfiber cloth, easily removes dust, fingerprints & other smudges on the screen’s surface. Clean effectively for a streak-free screen
- Gentle on your Screens - Our screen cleaner spray and wipes is compatible to be used even for the most sensitive LCD, LED, CRT, and OLED screens in proper use. Be at ease knowing that this product is compatible with all the major brands: LG, SONY, Samsung, Sharp, iPad, iPhone, Android screens, Kindle, PC monitors - we’ve got you covered! Can be used as LCD screen cleaner, tv cleaner, smart tv screen cleaner, and more
- Premium Super Soft Plush Microfiber Cloth - Included in this efficient screen cleaning kit. This screen cleaner spray and wipe has our signature plush microfiber cloth specially designed to comply with screens and monitors and leave them streak-free. Has been shown to effectively absorbs stubborn stains, zero streaks, and no fiber shedding. Always use this together with our screen cleaner for the best results
- Easy-to-Use Screen Cleaner Kit + microfiber cleaning cloth - The EVEO Screen Cleaning Kit will easily be your new favorite tool when it comes to taking care of the things you love most, quick and easy solution for a streak-free screen. Simply screw on the sprayer gun on the screen cleaner bottle. Spray the cleaning liquid onto the microfiber cloth, then wipe the screen until desired cleanliness & shine is achieved.
- Quality Screen Care Kit Worth Purchasing - Enjoy a convenient Screen Cleaner anytime, anywhere you need it. Your satisfaction is our top priority. We stand behind the quality of our products and that’s why, you shouldn’t be worrying at all. We manufacture the Best Screen Cleaner. and can be used for laptop cleaning kit, laptop screen cleaner, tv screen cleaner for smart tv. MacBook screen cleaner, monitor cleaner or screen cleaner spray for electronic devices with microfiber cleaning cloth
Android troubleshooting
The hostname is rejected
- Check every character, including hyphens and periods. The public example is
dns.adguard-dns.com. - Remove spaces before or after the hostname.
- Confirm that you entered only a hostname, not an IP address, URL, or port suffix.
- Verify that Wi‑Fi or mobile data can load a normal webpage before trying again.
- Search Settings for Private DNS if the menu path in your phone’s manual differs.
The phone loses internet access after saving
- Return to Settings → Network & internet (or Wi‑Fi & Internet) → Advanced → Private DNS.
- Select Automatic and save.
- Test the same network again. If it works, the issue is with the hostname, resolver reachability, or a network that blocks encrypted DNS.
- Try another compatible filtering hostname or another network. A hotel, school, workplace, or captive-portal Wi‑Fi may require its sign-in page before private DNS can operate normally.
- If the connection works only with Automatic, use the provider’s app or profile flow if one is available, or leave filtering disabled on that network.
A website or app breaks
DNS filtering can block a domain that an app needs for sign-in, payments, video playback, comments, telemetry, or other functions. First switch Private DNS to Automatic to confirm the cause. If the app works again, add the necessary domain to the provider’s allowlist or user rules, if your service supports them. Allow only the specific domain you need; disabling every filter removes the protection that caused the problem.
Set up DNS ad blocking on an iPhone
Install a DNS configuration profile
iOS normally delivers system-wide custom DNS through a configuration profile or a provider application rather than an Android-style Private DNS hostname field. The provider’s public DNS page should offer a generic profile for the server you select.
- Open the provider’s DNS setup page in Safari.
- Choose the server policy you want. A default filtering server blocks ads and trackers; a non-filtering server does not apply those lists; a family-protection server can additionally block adult content and enable Safe Search or Safe Mode where possible.
- Tap Download configuration profile (the wording can vary slightly).
- When iOS reports that a profile was downloaded, open Settings. Tap Profile Downloaded if that item appears, or go to General → VPN & Device Management.
- Select the downloaded profile and review the provider name, DNS servers, and policy before installing it. Do not install a profile whose publisher or contents you cannot identify.
- Tap Install, authenticate with the device passcode if requested, and approve the remaining warnings.
- Return to General → VPN & Device Management and verify that the profile is listed and enabled.
The profile applies DNS settings at the device level while it remains installed and active. iOS approval screens and labels can change between releases, so use the provider name and the profile details—not just the button position—to confirm what you are installing.
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Create a custom profile
If the provider offers a profile constructor, use it to select the server, filtering categories, and any account-specific policy, then download the generated profile. Review the resulting provider name and settings in iOS before installation. A custom profile is useful when you need a personal allowlist or a family policy that the generic public profile does not include.
Rank #3
- 【Large size】：Measuring 800 x 300 mm/ 31. 5×12 inches, which is wider and taller than others. Large mouse pad can perfectly fit your keyboard and mouse of any size, and there is also ample space for peripherals such as phones, tablets, etc.
- 【LED backlight mouse pad】：Blade Hawks RGB mouse pad provides 7 static modes and 7 dynamic modes will give you the options you are looking for. Power-off memory function remembers the last lighting mode you selected. The super glow fiber Chroma will give you a colorful gaming setup that you want.
- 【Anti-slip rubber base】：Made from Natural rubber, this gaming mousepad will firmly grip your desktop, allowing you to enjoy the ultimate precision in the games you are most passionate about. It also comes with a texture that enhances this ability even further.
- 【Smooth and waterproof surface】: Micro-textured cloth surface, for extremely precise mouse control and a smooth movement. When liquid splashes on the gaming mouse pad, it forms water droplets and slides down. Will not delay your work or gameplay.
- 【Plug and play】: This mouse and keyboard pad is powered by USB, plug and play, no driver required. One button control light modes. Press one time to change the lighting mode, press twice to change the brightness, press and hold about 3 seconds turn ON/OFF.
Use the provider’s iPhone app
Some DNS services distribute their configuration through an app. The app may install a profile, establish a managed VPN-style DNS configuration, or provide an on-device switch. Follow the app’s setup instructions and check Settings → General → VPN & Device Management afterward so you know which configuration is active. Installing multiple DNS profiles or DNS-filtering apps can create conflicts; keep one active policy unless you understand how the app manages precedence.
Disable or remove the profile
- Open Settings → General → VPN & Device Management.
- Tap the DNS profile or provider configuration.
- Choose Remove Profile (or the equivalent option), authenticate, and confirm.
- Reopen a browser and an app to verify that normal DNS behavior has returned.
Removing the profile is different from merely closing Safari. The device-wide DNS policy remains in effect until you disable or remove the configuration.
Choosing a filtering policy
| Policy type | What it is intended to block | When it fits |
|---|---|---|
| Default filtering | Advertising and tracking domains | General use when you want fewer ads and less third-party tracking |
| Non-filtering | No ad or tracker blocklists | Troubleshooting, compatibility testing, or encrypted DNS without filtering |
| Family protection | Ads and trackers plus adult-content categories; Safe Search or Safe Mode where supported | A device used by children or a household that wants an additional content policy |
| Account-managed or personal | The categories, lists, and rules selected in your account | Users who need custom blocklists, allowlists, device policies, or logs |
Filtering scope is not universal. Two providers can block different domains, and the same provider can change its lists. Check the provider’s current privacy policy and logging explanation separately; encrypted DNS does not establish a universal “no logs” guarantee.
Custom filters, allowlists, and rules
A filtering service can combine its DNS server, selected DNS filters, and user rules. This lets you adjust the policy when a useful service is incorrectly blocked or when a known tracker is not on the default lists.
Rank #4
- 【Softer and More Comfortable】Vaydeer wrist rest has unique diamond pattern, which is the combination of softness and aesthetics. The materials of wrist rest are improved into higher quality memory foam and covered with silky smooth lycra. The computer wrist rest makes you as comfortable and cushiony as like rest your wrists on clouds.
- 【Ergonomic Wrist Saver】The wrist rests for keyboard and mouse comes with a 17.32×3.15×0.83 inch keyboard wrist pad and a 5.94×3.15×0.83 inch mouse wrist support. Based on ergonomic design, the unique concave shape is the perfect fit for your wrist joints. The wrist rest pad fits most computer keyboards and laptops, improve hand and wrist posture, release your wrist and arm stress.
- 【Non-Slip Rubber Bottom】Featuring an anti-skid silicone base on the bottom, this wrist keyboard support stays firmly in place on your desk, preventing the padding from sliding around, ensuring stable and consistent wrist support during extended computer sessions.
- 【Better Experience & Pain Relief】Our keyboard arm rest is beneficial to alleviate the soreness caused by direct contact and friction between your arm and a hard desk surface, reducing the risk of wrist fatigue or carpal tunnel. The soft texture of memory foam can evenly distribute the pressure around your wrists and provide good support with just enough give.
- 【Helpful in Multiple Scenarios】Whether you're working, studying, writing, typing, gaming, this keyboard and mouse rest combo is an essential accessory to add comfort and support to your hands and wrists. It’s also a great gift for men, women, family, friend, coworker, gamer, teacher, etc.
Block a domain without blocking a subdomain
Rule syntax is provider-specific. In the AdGuard filtering syntax example, a rule can block example.org while leaving www.example.org allowed. Follow the provider’s syntax documentation exactly; a rule that matches every subdomain can have a much wider effect than one that matches the base hostname.
Allow a broken service carefully
- Reproduce the problem with filtering enabled.
- Temporarily switch to the provider’s non-filtering server or disable the profile to confirm that DNS filtering is responsible.
- Identify the smallest domain required for the feature, using the provider’s query log or the app’s documented endpoints when available.
- Add that domain to an allowlist, save the rule, and test sign-in, playback, checkout, or the affected feature again.
- Remove the exception if it is no longer needed.
Allowlisting a broad advertising or analytics domain may restore an app but also permits the requests you wanted to block. Prefer a narrow exception and test it on the specific device.
What DNS ad blocking can and cannot block
Usually effective against
- Many third-party advertising hostnames requested by websites and apps.
- Common tracking and analytics domains that appear on the selected lists.
- Known malware or phishing domains included by the provider.
- Some domains in family-protection categories, such as adult-content sites.
Not guaranteed to remove
- Ads served from the same hostname as the article, video, or app content you requested.
- First-party promotions that use the service’s own domain.
- Ads delivered inside an encrypted payload without a separately blockable DNS hostname.
- Every ad in a streaming service, social network, game, or mobile app.
- Visual space left behind after a blocked request, because DNS filtering does not edit the page layout.
Browsers and app-level blockers can use additional techniques, such as inspecting page resources or applying cosmetic rules. DNS filtering is broader across devices and apps but operates only at the hostname-resolution layer. YouTube ads are a common example of the limitation: DNS filtering does not guarantee their removal when advertising and wanted video traffic share hostnames or delivery paths.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsDNS-over-TLS, privacy, and anonymity
When Android’s Private DNS connects to a compatible provider, DNS-over-TLS encrypts the resolver conversation between the phone and that provider. This helps prevent a local Wi‑Fi operator from reading or modifying those DNS queries in transit. It does not hide the destination from every party involved in a connection, and it does not replace HTTPS, a VPN, browser privacy settings, or account-level privacy controls.
Best Value
- 【No Drill Mounted】Cable management tray can be assembled in as little as 3 minutes or less-simply. Side clips easily clampe the edge of desk, pass through the holes on the sides, and secure excess cables with baskets. Desk cable management supports inward or outward installation to meet your needs in different scenarios, and provides you with great convenience when collecting and organizing wires.
- 【Rubber Pad Protects Desk】Wire organizer under desk built-in soft rubber pads on the clamp protect your desk from scratches, so you will not damage your furniture or office.
- 【Sturdy and Beautiful】Cord management under desk is made of high-quality carbon steel and holds about 15 lbs. The wire basket has 2 holes on each side of the tray to enable your cables to pass freely. Cable baskets are suitable for desk thickness use from 0.4" to 2.4".
- 【Space Saving & Keep Organized】Desk cable management tray holds all your power cords, outlet strips, USB hubs and computer transformers hidden from your feet, and the data cables will not enter the vacuum cleaner to keep your desk clean and tidy. Desk wire organizer is also suitable for use in the kitchen and outdoors.
- 【Reduce Safety Risks】Cable tray under desk keeps all plugs away from your kids, no more worry about tripping. Using 2 holes wire tray saves extra space, helps you easily cabling and wire protection. The mesh design is not easy to accumulate dust, but avoids safety accidents caused by messy wires.
The DNS provider remains an important trust point because it receives the queries it resolves. Before choosing a service, read its current privacy and retention policy, identify whether account-linked logs are offered, and decide whether its jurisdiction and business model fit your needs. Do not infer a no-logging promise merely from the words “private DNS” or “DNS-over-TLS.”
Android and iPhone setup compared
| Question | Android | iPhone |
|---|---|---|
| Built-in entry point | Private DNS menu in Settings | Usually a configuration profile or provider app |
| Typical filtering value | dns.adguard-dns.com or an account-specific provider hostname |
Selected in the downloaded profile or provider app |
| Transport described by the setup | DNS-over-TLS for the manual Private DNS hostname | Determined by the installed profile or app’s DNS configuration |
| How to revert | Set Private DNS to Automatic | Disable or remove the profile in VPN & Device Management |
| Common failure | Hostname rejected or connectivity stops after saving | Wrong profile, conflicting profiles, or an approval that was never completed |
Quick verification checklist
- The intended hostname or profile is visible in the device settings.
- A normal webpage loads on both Wi‑Fi and mobile data where your policy is expected to apply.
- An app that previously showed third-party advertising behaves differently, while core functions still work.
- The filtering provider’s status or query log, if offered, shows requests from the device.
- A known false positive can be reversed by returning to Automatic on Android or removing the iPhone profile.
- You have recorded which policy is active so another household member can troubleshoot it later.
Common questions to settle before installation
What do I put in Android’s Private DNS provider hostname?
Enter the filtering service’s DNS-over-TLS hostname exactly as supplied. For the public AdGuard filtering server, use dns.adguard-dns.com. A personal account may provide a different hostname such as {Your_Device_ID}.d.adguard-dns.com; replace the placeholder with the identifier assigned to your device.
Can I type a DNS IP address in that field?
No. The manual Private DNS field is for a provider hostname used for DNS-over-TLS. A numeric address, a URL, or a hostname with a protocol prefix can be rejected or fail to connect.
PC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchWill this block ads in every app?
No. It blocks requests to domains included in the active lists. Ads that share a hostname with wanted content, use first-party delivery, or do not create a separate blockable DNS request can remain.
Does private DNS hide my browsing?
It encrypts DNS transport to the selected resolver. It does not make all browsing traffic anonymous, conceal every destination from every network participant, or prevent the resolver from seeing the queries it handles.
What should I do if a site stops working?
Temporarily return Android to Automatic or disable the iPhone profile. If the site works afterward, add a narrow allowlist exception through the provider or choose a less restrictive policy, then retest.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
