In our daily use of the Internet on our Android devices, browsing speed, website security, and data privacy are factors we all value. However, few users are aware of the fundamental role that browsers play. DNS servers in the quality and overall experience of your connection. Beyond what operators offer by default, there is a growing range of free DNS services designed to improve internet access, filter dangerous or inconvenient content, and protect our personal information.
In this mega-guide, you will find All the essential and advanced information to understand how DNS works, what advantages they have over your provider's DNS, which are the best and most reliable free DNS services of 2025, and how to configure them step by step on your Android. All information comes from the most up-to-date and comprehensive articles from the main technology portals, so you can make an informed and personalized decision.
What is a DNS server and what is it used for?
Before we delve into the vast universe of options, it is worth clarifying the concept. Domain Name System (DNS) It is the system that translates the web addresses that we type into the browser (like google.com) to the IP address that actually identifies the server on the Internet. Thanks to this system, we don't need to memorize long strings of numbers and can navigate comfortably using legible and memorable names.
DNS acts silently every time you access a website, querying huge decentralized and hierarchical databases to connect your device to the correct server. It also determines which resources your email app, browser, or any connected service accesses, making DNS a true backbone of the internet.
In most cases, We use the DNS that comes preconfigured on our router or mobile device, usually provided by your ISP (Internet Service Provider). However, you are free to replace it with public or private third-party alternatives, many of which are free and offer Advantages such as greater speed, security or advanced filters.
Why change the default DNS on Android?
It's common to think that with a good data or fiber optic plan, browsing speed should be optimal under any circumstances. However, Your carrier's DNS server may be slower or less secure than other options. Changing the DNS to a better one can mean:
- Improve web page loading speed and reduce the time it takes your browser to locate a site's IP address.
- Increase privacy, since some DNS do not store or share your browsing data.
- Avoid regional blocks imposed by operators or governments, accessing websites and services restricted in your country.
- Block ads, trackers, and inappropriate content, essential if you share your phone with minors or want to browse without any hassle.
- Increase security with filters that detect and block dangerous or infected sites.
Ultimately, Changing your DNS may seem like a technical task, but the benefits are very palpable and often just a few simple steps from Android settings or through dedicated apps are enough.
Advantages and disadvantages of free DNS servers
Opt for a free third-party DNS It will allow you to improve many aspects of your browsing, although each option has its pros and cons depending on your preferences:
- Reliability and stabilityMany free DNS servers have high availability, with fewer outages than carrier DNS servers.
- Higher speed: They use larger, optimized networks, reducing latency in domain resolution.
- More securitySome include protection against phishing, malware, or DNS spoofing attacks.
- parental controlIf you have children or teenagers, certain DNS servers allow you to automatically filter out adult or inappropriate content.
- Skip restrictions: You can bypass local blocks on news websites, social networks, or online services.
However, not all are advantagesSome points to keep in mind before changing your DNS to a free one:
- Fewer advanced features Compared to paid solutions, premium services typically offer more customization options, more dedicated customer service, and additional warranties.
- Variable Privacy: While some promise not to keep logs, others may store some information for internal analysis.
- Non-absolute protectionRemember that DNS is just one layer of security. If you're looking for complete anonymity, you should complement it with a VPN or other encryption mechanisms.
The key is to choose the DNS that best suits your needs, considering the speed, privacy, and type of protection it offers.
What types of DNS are there and which one is right for you?
The DNS world isn't limited to just the classic domain translation function. There are different types and options:
- Public DNS: Freely accessible, offered by technology companies, NGOs, or governments. They don't require registration and are usually free.
- Private DNS: Used internally by companies or corporations to manage access and resources. They are not accessible to the public.
- DNS leaks: They incorporate filters to block ads, trackers, malicious websites or adult content.
- Encrypted DNS (DNS-over-HTTPS, DNS-over-TLS, DNSCrypt): Increase privacy by protecting requests from prying eyes or external manipulation.
Most of the recommended DNS for Android and home user are public and free, but there are options that combine filters, encryption, and even custom control panels. If you're simply looking for speed and additional privacy, Google DNS, Cloudflare, or Quad9 are perfect. If you're looking for parental or ad filtering, check out options like AdGuard, CleanBrowsing, or OpenDNS FamilyShield.
How to find out which DNS you're currently using on Android
Before you rush into changing your DNS, it might be helpful to know which one you're using. On Android, depending on the version, you can see it in your Wi-Fi network settings:
- Accede to Settings > Network and Internet > WiFi.
- Click on your connected network and enter Advanced or in the connection details.
- Look for the DNS section. If you see 8.8.8.8, you're using Google; if it's 1.1.1.1, it's Cloudflare; if it's a local IP, it's your router's IP (and therefore your ISP's).
If in doubt, you can use apps like DNS Changer, which show the current DNS and allow you to easily change it.
Best Free DNS Servers for Android in 2025
Now, let's get down to business. The selection below includes the DNS most recommended by specialized portals and users for your Android phone this year. It includes both speed-enhancing options and advanced privacy and filtering options. Along with each option, we provide their IP addresses so you can configure them directly on your device.
1. Google Public DNS
Addresses: 8.8.8.8 (primary), 8.8.4.4 (secondary)
This is one of the most popular and reliable free DNS, especially designed for users who want a simple and fast navigation. Backed by Google, it offers clear documentation, stability, and excellent performance. While it stores certain data for analysis and deletes IP addresses within 24-48 hours, it doesn't link activity to personal accounts. It doesn't include ad or dangerous content blocking, but it does have advanced security options to prevent DNS-related cyberattacks.
2. Cloudflare DNS (1.1.1.1)
Addresses: 1.1.1.1 (primary), 1.0.0.1 (secondary)
Focused on speed and privacy above all, Cloudflare boasts the world's fastest name resolution Thanks to its vast network (more than 200 locations), it promises not to sell your data, not to store your IP address, and to delete logs in less than 24 hours. Plus, its address is so easy to remember that you can set up new devices in seconds. It's ideal for online gaming and ultra-fast browsing, although it doesn't filter ads by default (you can do so if you create a free account).
3.Quad9
Addresses: 9.9.9.9 (primary), 149.112.112.112 (secondary)
Quad9 is the preferred choice for users looking for Security and protection against malware, phishing, and malicious websitesIt uses intelligence from multiple sources to update its blacklists and doesn't store any logs of your queries. It's one of the most private alternatives, although its speed is slightly slower in certain regions compared to Google or Cloudflare.
4.OpenDNS
Addresses: 208.67.222.222 (primary), 208.67.220.220 (secondary)
Owned by Cisco, OpenDNS stands out for its reliability and large user base. It allows you to customize protection through filtering categories (more than 50 available) and offers tools for parental controls at home. This is especially useful if you want to block adult content or phishing sites from the DNS itself. It also offers variants such as FamilyShield or Shield for automatic protection.
5. AdGuard DNS
Addresses: 94.140.14.14 (primary), 94.140.15.15 (secondary)
AdGuard stands out for its ability to filter ads and trackers from the DNS, as well as offering family protection to block adult content. It is free in its basic version, easily configurable and without the need to install additional software, although it also offers extended premium features. It's one of the most recommended services for those looking for clean and secure browsing on any device.
6. CleanBrowsing
Addresses: 185.228.168.168 (family filter), 185.228.168.10 (for adults), 185.228.168.9 (security)
This option puts the focus on the parental controls and smart filtersCleanBrowsing offers different levels of protection based on your needs (family, adult, or security only), preventing access to dangerous or unsuitable websites without having to install apps on each device. It's compatible with any operating system and has detailed manuals on its website.
7. NextDNS
Addresses: 45.90.28.0 (IPv4), 2a07:a8c0:: (IPv6)
If you're looking for maximum customization in content filtering, NextDNS is a top choice. It allows you to create your own policies, block ads, malware, trackers, adult websites, and much more. The free version has limitations, but you can try it without registering an account. It's the ideal alternative for techies or those who require a custom DNS configuration.
8. Verisign
Addresses: 64.6.64.6 (primary), 64.6.65.6 (secondary)
Verisign is less well-known among the general public, but it offers a stable, reliable network with a special emphasis on privacy. It doesn't store or sell your information. protects against DNS attacks and has servers distributed globally.
9. FreeDNS
Main addresses: 37.235.1.174, 37.235.1.177, 172.104.237.57, 172.104.49.100, 45.33.97.5
FreeDNS allows you to browse while maintaining privacy, as it doesn't require registration or logs. It's very easy to use, although it doesn't include protection against malicious sites. Ideal for users looking for speed and basic anonymity.
10. OpenNIC
Addresses: 96.90.175.167, 193.183.98.154
A decentralized community alternative with servers spread across the globe. It's aimed at advanced users who want independence from large companies or governments. It includes support for DNSCrypt and other encryption technologies.
Other notable alternatives
- Comodo Secure DNS: 8.26.56.26 and 8.20.247.20 – Focused on security and blocking dangerous websites.
- CyberGhost DNS: 38.132.106.139 and 194.187.251.67 – Privacy and speed oriented.
- UncensoredDNS: 91.239.100.100 and 89.233.43.71 – Unrestricted, with support for secure protocols.
- SafeServe (Namecheap): 198.54.117.10 and 198.54.117.11 – Advanced protection for personal data.
- Level3: 209.244.0.3 and 209.244.0.4
- WATCH: 84.200.69.80 and 84.200.70.40
- SmartViper: 208.76.50.50 and 208.76.51.51
- Alternate DNS: 198.101.242.72 and 23.253.163.53
- PuntCAT: 109.69.8.51
- Hurricane Electric: 74.82.42.42
Feel free to try several of these options until you find the one that best suits your needs, whether it's speed, privacy, or content filtering.
What to consider when choosing a free DNS?
The range of free DNS services is growing. Before deciding on one or the other, consider the following aspects:
- Compatibility: Make sure your Android and version support Custom DNS or Private DNS, especially if you're looking for encryption. You can check how to activate a private DNS on Android.
- Server speed and location: Always choose a DNS with servers close to your region to minimize latency.
- Privacy policy: Check if they keep logs, for how long, and if they share data with third parties.
- Filters and protection: Consider whether you prefer “pure” DNS (only IP change) or ones that incorporate filters for ads, malware, phishing, or adult content.
- Ease of setupSome offer apps, others require manual setup. Choose the option that best suits your technical profile.
- Support for encrypted DNS (DoH, DoT, DNSCrypt): Essential to maximize your privacy, especially on public WiFi networks.
How to change and configure DNS on Android
If you've chosen a new DNS, all that's left to do is apply it to your device. Depending on your Android version and manufacturer, you can do this in several ways:
1. Change DNS from WiFi settings
- Sign in Settings > Network and Internet > WiFi.
- Click on the network you are connected to and access Advanced (may vary by brand).
- En IP configuration, Select Static.
- Fill in the fields DNS 1 y DNS 2 with the IP addresses of the chosen DNS.
- Save the changes and restart the connection if necessary.
This method only changes the DNS for that specific network, not for all networks.
2. Use the “Private DNS” option on Android 9 or higher
- Go to Settings > Network & Internet > Advanced > Private DNS.
- Choose Private DNS provider hostname and enter the address (for example, dns. google for Google).
- Save and you're done: the change will be applied to all connections.
Many modern DNS servers support DoH/DoT and tell you which hostname to use. If you enter an IP address here, it won't work; it only accepts compatible hostnames.
3. Use specialized apps to change DNS on Android
There are free and paid apps that make the process easier, especially if your Android version doesn't allow manual changes or if you want to quickly change DNS settings. Two of the most notable and recommended by experts are:
DNS Changer
This app allows you to change the DNS of your device no need for root and works on both WiFi and mobile networks (2G/3G/4G/5G). Its DNS Speed Test function It allows you to compare different providers and select the fastest in real time. Another interesting feature is that it protects your privacy on public networks without affecting download or upload speeds. Additionally, you can select from preconfigured lists or customize the DNS to your liking.
Ideal if you're looking for fast browsing, reduced latency in online games, or an overall improved user experience. It's constantly updated to be compatible with new versions of Android.
Blockada
In addition to allowing DNS changes, Blockada It's a powerful tool for blocking ads, trackers, malware, and filtering malicious content directly on your Android. It uses the WireGuard protocol to encrypt traffic and protect up to five devices at once, with no bandwidth limits. It's especially useful for those who want an ad-free experience and secure mobile browsing without having to install additional extensions or apps.
Cloudy
An innovative app that implements DNS over HTTPS and DNS over TLS, ensuring superior security and privacy. It includes quick profiles for Google, Cloudflare, OpenDNS, and others, as well as advanced options for expert users. Available for free on the Play Store.
Change DNS on your router and other devices
If you want your entire home network uses the alternate DNSIt's best to configure it directly on the router. This way, any mobile phone, PC, tablet, smart TV, console, or other connected device will work with the selected server. The general procedure is:
- Access the router's web interface by typing its IP (usually 192.168.0.1, 192.168.1.1, etc.) into your browser.
- Log in with the corresponding username and password.
- Locate the section Internet settings o DNS.
- Enter the new addresses in the fields Primary DNS y Secondary DNS.
- Save the changes and reboot the router if necessary.
Remember that each router model has different menus. Consult your model's documentation or search for specific tutorials if you have any questions.
What to do after changing DNS? Checks and recommendations
After applying a new DNS, it is recommended:
- Flush the DNS cache from your device so it doesn't use old data. You can do this by restarting your phone or using the advanced options.
- Monitor browsing speed and experience for a few days to make sure you've made the best choice.
- If you experience slowness or loading errors, try another option from the list until you find the one that best suits your connection and needs.
For those most concerned about security, it is advisable to combine the use of a filtering DNS with encryption technologies such as DNSCrypt, DNS-over-HTTPS or a VPN, especially if you regularly browse connected to public WiFi.
Tools to analyze and choose the fastest DNS
Although most public DNS servers offer excellent performance, actual speeds can vary greatly depending on your location. To find out which one is the fastest for your specific situation, there are very effective tools such as:
- DNS JumperFree, easy to use, and portable. It analyzes dozens of servers and suggests the fastest one. Very useful for testing from your PC.
- DNS Benchmark: Ideal for advanced Windows users, it offers graphs and comparisons between dozens of servers.
- namebench: Cross-platform tool (Windows, Mac, Linux) that suggests the best DNS based on real-world speed and response time tests.
- DNS Perf: Online service that compares major public DNS based on global and localized metrics.
On Android, apps like [[include]] incorporate speed tests to make it easier for you to choose from your phone.
The role of security and privacy in public DNS
One of the big debates surrounding the use of third-party DNS is the data privacy and security. It is worth highlighting some details to keep in mind:
- DNS itself does not encrypt your traffic.Most free DNS services don't hide your IP address or prevent your ISP or the company that manages the server from seeing your requests.
- Who can see your data? DNS server owners can know your IP address and log the domains you query. Some keep only temporary logs (Google, Cloudflare), others promise not to store anything (Quad9, AdGuard, NextDNS in private mode).
- DNS filtering or parental protection They usually analyze the websites you visit to decide whether or not to block them. Always check the privacy policy and terms of each service.
- Encrypted DNS (DoH, DoT, DNSCrypt): They offer an extra layer of privacy, preventing the interception or manipulation of your queries between your mobile and the server.
- For maximum security, combines encrypted DNS with VPN and use tracker/ad blockers at the device level.
What are the differences between using free DNS and paid DNS?
On Free DNS They tend to have fewer advanced features than paid options, especially when it comes to customization and technical support. However, for the average user and most situations, A trusted free DNS is usually more than enough.Paid DNS offers:
- Ability to customize content filters in detail.
- Priority technical support.
- Advanced usage reports and statistics.
- Specific options for businesses and families.
If you need features like customized policies, centralized management of multiple devices, or professional support, you might want to consider a premium service like NextDNS or AdGuard Premium.
Frequently Asked Questions When Changing DNS on Android
- Does changing the DNS affect all apps? Yes, most apps use the system's DNS settings. Some apps with proprietary proxies or VPNs may override these settings.
- Are there risks in using free DNS? Used correctly, no. But always choose well-known, reputable alternatives to avoid malicious redirects.
- What do I do if I have connection problems after changing the DNS? Return to the default settings or try another option from the list. Restart your phone if necessary.
- Do I need root to change DNS on Android? Except for very old cases, no. Currently, there are methods and apps compatible with any recent Android without root.
The world of free DNS is as varied as it is useful. Choosing the right server can make a huge leap forward in browsing speed, data security, and content filtering on your Android. The key is to be well-informed, test several alternatives, and adjust the settings to your needs, always staying alert for updates and new options as they emerge. Whether you're looking for more privacy, bypassing blocks, speeding up website loading, or protecting your family from unwanted content, you're sure to find the perfect option for you in this list.
