The Best 9 DNS Filtering Tools in 2025: DNS filtering is a blocking technology that prevents users from accessing certain web content. It is based on a predefined set of rules and is enforced by a DNS resolver.
DNS-based filtering is beneficial for companies trying to restrict their employees from consuming NSFW (not safe for work) content or to protect company devices from harmful sites. Similarly, schools (and parents) can configure their networks using DNS content filtering solutions to block certain domains they deem inappropriate or harmful.
Accessing unfiltered websites can expose devices or networks to malware, phishing, and other similar online threats. Moreover, DNS filtering is essential in specific settings to maintain the integrity of those environments and avoid harmful or unwanted content on websites.
In this article, we will explore the best DNS content filtering tool available based on factors such as target audience, filtering capabilities, and malware protection.
The Best 9 DNS Filtering Tools in 2025
1. WebTitan WebTitan
WebTitan WebTitan from TitanHQ offers a cloud-based content filtering tool that protects end users from malware and phishing attacks. It features 53 predefined categories, enabling teams to quickly deploy DNS protection and filtering without creating their own domain lists.
WebTitan allows administrators to set flexible policies for specific groups, networks, users, and devices from its control panel. Teams can also manage and monitor everything remotely via its REST API.
Its malware protection is exceptionally robust, safeguarding users from unbreachable threats at any hour. This is supported by a real-time updated database sourced from a collective base of 500 million website visits.
WebTitan supports user request identification with Microsoft Active Directory and Azure AD, allowing for better control and detailed reporting. It is a 100% cloud application that works with both SAAS and on-premises infrastructure.
Its reports enable administrators to view real-time browsing sessions, provide an overview of performance and user activity, and send alerts if anyone attempts to access blocked content.
Advantages
Advantages of TitanHQ
Quick startup with simple DNS redirection
Flexible deployment options both on-premises and off
Precise content filtering
2. Control D
Control D is a DNS filtering service that you can effectively deploy across devices and operating systems to protect your workforce from threats and distractions. It features predefined filters for malware, ads, tracking tools, social media, adult content, and more.
You can customize the protection according to your specific business needs, which includes domain-level and IP address blocklists, as well as real-time machine learning-based filtering.
Control D features over 20 filtering categories and more than 850 specific services you can block. Additionally, there are options to create block schedules to deny services based on the time of day.
Another standout feature is encrypted DNS queries with support for DNS over HTTPS, DNS over QUIC, and DNS over TLS. However, you can still opt for traditional DNS if necessary.
This DNS filtering solution can be deployed at the enterprise level thanks to Control D's compatibility with RMM and MDM platforms. Furthermore, your employees can self-manage their personal devices without needing to be IT professionals. This is made possible with Control D clients for Windows, macOS, Linux, iOS, and Android.
Control D also works on most modern browsers and routers. You also have its API for custom implementation.
Administrators receive detailed analytics indicating the most visited domains and overall traffic patterns. The platform provides the flexibility to host DNS query data at your chosen location effortlessly.
While all these features make Control D suitable for your online presence, it also offers a personal version that provides the same benefits for individuals.
Advantages
Rapid deployment for the entire workforce
Precise filtering for network security customization
Support for modern DNS protocols, including DoT, DoH, and DoQ
Ideal for managed service providers and large enterprises
3. Cloudflare Gateway
Cloudflare Gateway features an integrated DNS server network for enterprises to enforce flexible content policies, monitor user activity, and block threats.
Companies can build and deploy content policies for their applications and networks to comply with regulatory policies. Gateway supports temporary authentication, purpose-specific authentication, third-party identity providers, and standard SAML and OIDC communications.
Cloudflare Gateway allows administrators to enforce integrated policies and permit precise content access based on geographic location, device, IDP groups, external APIs, and more. It also comes with HTTP(S) filtering, enabling traffic blocking based on its source, domain, hosts, and country. Additionally, teams receive firewall filtering to allow/block traffic based on ports, IP addresses, and TDP/UDP protocols.
In addition to utilizing Cloudflare's global network of servers, teams can also use a local DNS server. Moreover, it also allows for DNS protection setup for physical sites.
Companies receive detailed reports indicating every request, device, user, and the reason for blocking a specific request. For organizations already benefiting from Cloudflare's advantages, Gateway should be considered for all website content filtering needs.
Advantages
Extensive global DNS network
Free tier covering 50 users
Multiple filtering options for administrators
4. SafeDNS
SafeDNS is one of the best DNS filtering programs thanks to its robust database containing 104 million websites across 66 categories, fast execution, and 24/7 technical support with every subscription.
SafeDNS allows for DNS traffic encryption with support for DoH and DoT. Teams can filter through various SafeDNS endpoints, each configured to block differently on the same network. It also enables teams to set DNS filtering to automatic trial mode by creating schedules that activate specific block profiles without manual intervention.
AI-driven DNS protection blocks malware and inappropriate content. Teams can also add applications or services to avoid loading content from specific servers without entering domains one by one.
SafeDNS integrates with Microsoft Active Directory, allowing companies to filter traffic and resolve private domains within the company network. It enables administrators to enforce policies for each user or group and obtain detailed reports indicating the domains visited/blocked for each device.
Teams can deploy SafeDNS on Windows, Linux, iOS, Android, and routers (running on OpenWRT firmware).
Advantages
66 predefined filtering categories
Easy setup and operation with minimal oversight
Plans for home users, businesses, nonprofits, and every access point
Conclusion
In this article, we discussed the best 9 DNS filtering tools in 2025. DNS filtering programs are essential tools for individuals, companies, and organizations looking to enhance security, improve browsing efficiency, and control online content. Whether you need protection from malware, phishing attacks, intrusive ads, or wish to enforce parental controls and institutional restrictions, the right DNS filtering solution can make a significant difference.
