From blocking access to malicious websites and inappropriate content to boosting productivity and ensuring compliance, DNS filtering has become an essential tool when creating a safe, efficient, and productive online environment.
DNS filtering is an essential tool for businesses, educational institutions, and even households as they regulate internet access to keep workers productive, block harmful content, and prevent distractions.
The services on this list block domains or IP addresses at the domain level, which is effective because it prevents users from connecting to a domain or website in the first place.
But with so many DNS-based solutions available, it can be difficult to know which one to choose.
This article highlights the best DNS filtering software available, detailing their key features, strengths, and weaknesses so you can make an informed decision.
8 Best DNS Filtering Software
Our recommendations for the best DNS filtering service are:
- Control D
- WebTitan
- Cisco Umbrella
- Cloudflare Gateway
- DNSFilter
- SafeDNS
- NextDNS
- DefensX
Each tool offers a unique set of features that may – or may not – be best suited to your needs. Let's explore each in detail.
1. Control D
Yes, we're biased. But let us show you why we believe Control D stands out as the top DNS filtering solution.
Superior Malware Protection
Independent tests show that Control D has an industry-leading malware filter with a 99.97% block rate, outperforming giants like Google and Cloudflare. With Control D, you can effortlessly block malicious sites, stay on top of emerging cyber threats, and guard your entire network from harmful content.
Granular Filtering & Customization
Control D allows you to block entire content categories or get granular and block specific apps, websites, and platforms. With nearly 1,000 Filters and Services to choose from, you can tailor your DNS settings exactly to your liking.
This approach combines DNS filtering and web filtering to ensure full network protection.
Third-Party Blocklists
Control D comes pre-packaged with 15 third-party blocklists from renowned names like Hagezi and OSID. If these don't suffice, you can import your own bespoke blocklist, which is made available exclusively to you as a Filter.
Advanced Geo-Custom Rules
Enforce location-based rules that allow you to block, redirect, or bypass DNS queries based on the IP's origin or destination in a specific ASN or country.
Typical use cases are blocking traffic originating from high-risk countries like Russia or China, or redirecting queries resolving to an ASN to a proxy location – more on this below.
Traffic Redirection
Mask your IP address by redirecting traffic through a DNS server in one of 100+ proxy locations across 60+ countries. This feature lets you set a default fallback location – ensuring your IP address appears to originate from a specific country – while setting a separate location for specific Services and domains.
For instance, set your default location to U.S. while directing DNS traffic for Facebook and Instagram through Canada.
Multi-Tenancy
Control D's Multi-Tenancy features allow you to easily manage end-user devices and networks across your entire organization. You can utilize Sub-Organizations to differentiate between teams, departments, and clients for tailored DNS settings and management.
Ad & Tracker Blocking
When you make DNS requests to domains, third-party domains that host ads and trackers are also requested. By blocking these from resolving, you can:
- Protect users from ads displaying inappropriate content or leading to malicious domains
- Maintain user privacy by preventing unwanted data collection on browsing habits
Dual-Stack Ready & Modern Protocol Support
Control D fully supports dual-stack IPv4/IPv6 networks, as well as all modern DNS protocols such as DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT).
Comprehensive Analytics & Monitoring
Utilize analytics features for insights into real-time or historical query log data. You can see a summary of your usage patterns and general trends or information on exact DNS queries and metadata.
You can also stream query log data to your preferred SIEM tool for real-time alerting and unified data analysis.
Cross-Platform Compatability
Control D is compatible with all Windows, Mac, Linux, iOS, and Android devices, as well as the most commonly used browsers and routers. Additionally, Single Sign-On (Okta) and Active Directory integration allows for centralized management of user identities and access rights.
Full API Access
Integrate Control D's functionality into custom software, allowing you to automate and script various actions without accessing the Control D dashboard. Typical use cases include:
- View, create, and modify Profiles
- View, create, and modify Endpoints
- View and modify authorized IP lists
Transparent Pricing
Instead of traditional tiered plans, Control D offers transparent, affordable pricing where a distinction is made between organization types:
- Enterprises – $2/Endpoint/month
- MSPs – $1/Endpoint/month
- Schools & Non-Profits – receive a further discounted rate
Summary
Pros:
- Comprehensive DNS and web content filtering with malware protection, ad-blocking, and tracker-blocking
- Advanced customization capabilities for businesses and individual users
- Multi-Tenancy for seamless DNS protection and management across an entire organization
- Real-time updates and analytics for monitoring network activity
- Transparent, affordable pricing with no hidden fees
Cons
- Does not offer URL filtering
2. WebTitan
WebTitan is a cloud-based DNS filtering solution designed to help MSPs and end users protect against cyber threats. It offers URL filtering, malware protection, and customizable internet usage policies, making it suitable for organizations looking for a straightforward filtering service.
However, WebTitan has a few limitations. It lacks granular filtering features like service-specific blocking and custom geo-based rules. Also, the absence of DNS-over-TLS (DoT) and mobile device support could be a drawback for organizations with wider compatibility requirements.
Pros
- Strong malware and phishing protection
- Comprehensive reporting and monitoring tools
Cons
- Limited support for modern DNS protocols beyond DoH
- Lacks geo-based filtering capabilities
- Lacks Linux and mobile device support
3. Cisco Umbrella
Cisco Umbrella is an enterprise-grade DNS filtering platform designed for businesses seeking top-tier security and advanced threat protection. It defends against phishing, malware, command-and-control, and malware attacks by blocking malicious traffic at the DNS layer before it reaches the network.
Organizations within the Cisco ecosystem will find the migration to Umbrella easy, but this is also a drawback since it is known to have a complex and arduous onboarding process for new users. This means that businesses without large, dedicated IT teams often find the platform overwhelming.
Another thing to mention is that Cisco Umbrella comes with a hefty price tag, which can rule out small and medium-sized businesses that don't have large budgets.
Pros
- Powerful threat intelligence and detection
- Scalable for global enterprises with complex networks
- Integration with Cisco's security ecosystem
Cons
- Expensive for small and mid-sized businesses
- Complex setup and configuration process
- Requires a skilled IT team for full utilization
- Poor post-sales customer support
4. Cloudflare Gateway
Cloudflare Gateway is an enterprise-level DNS security platform. Built on Cloudflare's extensive global network, Gateway delivers exceptional performance, making it an attractive choice for those seeking a fast solution.
One of Gateway's key advantages is its integration with the Cloudflare ecosystem, which includes DDoS protection, Zero Trust security, and other enterprise-grade tools. This makes it a natural fit for organizations already utilizing Cloudflare services.
However, it has the same limitations as Umbrella, where its focus on large enterprises results in it pricing itself out for smaller businesses. Additionally, some advanced features, like detailed analytics, are only available in higher-priced plans, further bumping up costs.
Pros
- Exceptional speed due to its server network
- Seamless integration with Cloudflare's broader security suite
- Flexible policies for managing online access and security
Cons
- Higher cost compared to competitors, especially for advanced features
- Doesn't include ad or tracker blocking, limiting privacy capabilities
- Malware filtering is less effective than other solutions
👉 Learn how Control D compares to Cloudflare Gateway
5. DNSFilter
DNSFilter is a DNS filtering platform offering web content control, malware protection, and internet usage management. It has an AI-powered threat detection system that identifies and blocks phishing, malware, and other online threats. Its clean interface and straightforward setup make it appealing for IT teams seeking a user-friendly security solution.
However, advanced features like SIEM integration and data export come at an additional cost, adding to the total expense. It also lacks full support for all modern DNS protocols.
Pros
- Proactive AI-based malware and phishing protection
- Easy deployment with minimal technical overhead
- List of blockable services for detailed filtering
Cons
- Advanced features like data export and SIEM integration require add-ons
- Lacks full support for modern DNS protocols like DNS-over-TLS (DoT)
- Cost can escalate quickly due to per-user add-on charges
- Fewer features than Control D
👉 See how DNSFilter stacks up against Control D
6. SafeDNS
SafeDNS is less well-known than some of the other names on this list, but it offers core functionality, such as malware blocking, phishing protection, and customizable content filtering. It also has an easy-to-use interface and responsive customer support.
But, SafeDNS lacks many advanced features common with more robust solutions. Some missing features include geo-based rules, Traffic Redirection, and support for all modern DNS protocols.
Pros
- Easy-to-navigate dashboard and intuitive policy management
- Responsive and reliable customer support
Cons
- Limited advanced filtering options compared to other solutions
- Some premium features are only available in higher-tier plans
- Lacks modern DNS protocol support like DNS-over-TLS (DoT)
7. NextDNS
NextDNS is a cloud-based DNS filtering service designed for privacy-conscious users and organizations. It offers advanced content filtering, malware protection, and tracker blocking, making it a solid choice for both personal and business use.
Where it lacks is in its depth of features, which can limit its scalability – particularly for those with complex use cases. It should also be noted that NextDNS has limited documentation, which makes it tougher to troubleshoot issues on your own.
Pros
- Strong privacy features with ad and tracker blocking
- Fully customizable filtering and detailed usage analytics
- Device compatibility across desktops, mobile, and routers
Cons
- Lacks advanced DNS management features
- No geo-based filtering or Traffic Redirection options
- Limited onboarding support for less technical users
👉 Read our head-to-head comparison of NextDNS vs Control D
8. DefensX
DefensX is an MSP-only DNS filtering and cybersecurity platform. It offers real-time malware protection, detailed analytics, and customizable filtering, as well as secure browsing through its integrated remote browser isolation feature.
However, its limited availability to MSPs and lack of deep customization options can be restrictive for businesses seeking more tailored filtering and policy management.
Pros
- Real-time threat detection and malware filtering
- Built-in secure browser for added web safety
- Simple deployment with minimal technical overhead
Cons
- Available only to MSPs, excluding direct business customers or personal users
- Limited customization for complex policy needs
- Slower product development and feature rollout
Why DNS Filtering is Important for Businesses
Businesses face constant cybersecurity challenges, from malware infections to data breaches caused by phishing attacks. DNS filtering helps mitigate these risks by blocking harmful sites at the DNS level before users connect. Here's why it matters:
1. Cybersecurity Protection
DNS filtering acts as the first line of defense by preventing access to malicious sites. It stops malware, ransomware, and phishing threats, reducing the risk of data breaches and downtime.
2. Productivity Management
Unrestricted internet access can lead to reduced productivity. DNS filtering allows businesses to block time-wasting sites like social media, streaming services, and gaming platforms during work hours to improve focus and productivity.
3. Network Performance Optimization
DNS filtering reduces unnecessary bandwidth consumption by blocking content unrelated to work. This ensures network resources are reserved for business-critical applications.
4. Regulatory Compliance
Organizations in regulated industries like healthcare, finance, and education must adhere to data privacy and internet usage laws. Examples include GDPR, HIPAA, and CIPA. DNS filtering helps maintain compliance by restricting access to non-compliant content and generating audit-ready reports.
5. Custom Policy Enforcement
Advanced DNS filtering solutions enable businesses to set custom policies based on roles, end-user devices, or time of day. This flexibility allows organizations to tailor their filtering approach to specific operational needs.
They also give businesses the ability to customize rules and policies based on a specific department or client's requirements, ensuring a completely personalized browsing experience.
How Individuals Use DNS Filtering
DNS filtering isn't just for businesses. It's also valuable for personal use cases. Here's how individuals can make DNS filtering work for them:
1. Privacy and Security
Individuals can block ads, trackers, and malicious content, enhancing both online privacy and security. Many DNS filtering services prevent personal data from being harvested by third-party advertisers.
2. Improved performance
DNS filtering can block intrusive ads and trackers across devices. Since these resource-heavy ads and trackers are not resolved, it often leads to improved browsing speeds and performance, creating a cleaner and smoother experience.
3. Content Customization
Users can tailor DNS filtering settings to allow or block specific websites, apps, or services, all while ensuring access to others. This restricts access to unwanted or distracting content, allowing users to curate the internet to their liking.
4. Parental Controls
Parents use DNS filtering to block adult content, violent media, and unsafe websites, ensuring a safer online experience for children. Custom rules can also set browsing time limits to manage screen time.
5. Device-Wide Protection
DNS filtering can work at the device level or the network level. Deploying Control on your network means all connected devices – from smartphones to smart TVs – benefit from enhanced protection without installing extra software.
Final Thoughts
DNS filtering has become a critical tool for businesses and personal users alike, offering security, privacy, and productivity benefits. Choosing the right DNS filtering software ensures network security while enabling customized internet control.
While some solutions shine in certain areas compared to others, top solutions like Control D excel in all departments, creating a safer, faster, and more reliable internet experience.
