# Best DNS Security Solutions - Page 4 *By [Lauren Worth](https://research.g2.com/insights/author/lauren-worth)* DNS (domain name system) security solutions are used to secure DNS servers and the websites they support. These tools redirect end-user web traffic through filters capable of identifying malware signatures and other characteristics of potentially dangerous websites and media. DNS security solutions provide IT personnel with tools to classify websites, categorize users, group devices, and customize usage policies. Companies use these tools to protect their employees’ endpoint devices and their own servers by blocking dangerous content, media, and websites. They can also be used to prevent employees from accessing unapproved content, such as adult or streaming sites, in the workplace. DNS-based attacks have a variety of impacts and can cause significant disruptions. To combat this, DNS security software also possesses monitoring capabilities to identify unauthorized or malicious bots that may be capable of disrupting server performance, service availability, and network connectivity. Many DNS protection solutions are capable of detecting and mitigating distributed denial of service (DDoS) attacks. DDoS attacks may target DNS servers but can attack virtually any kind of computer or network resource. DNS protections may not be able to protect against all kinds of DDoS attacks. DDoS-specific solutions include [cloud DDoS mitigation software](https://www.g2.com/categories/cloud-ddos-mitigation) and [DDoS protection software](https://www.g2.com/categories/ddos-protection). To qualify for inclusion in the DNS Security category, a product must: - Identify and block high-risk traffic at the DNS level - Monitor traffic for dangerous sites and scan content for malware - Facilitate the classification of end users, endpoints, and digital content ## How Many DNS Security Solutions Products Does G2 Track? **Total Products under this Category:** 79 ### Category Stats (Jun 2026) - **Average Rating**: 4.49/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product**: Cisco Umbrella (+0.002) - Among all products in this category, Cisco Umbrella recorded the largest rating increase compared to last month *Last updated: June 01, 2026* ## How Does G2 Rank DNS Security Solutions Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 2,100+ Authentic Reviews - 79+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. ## Which DNS Security Solutions Is Best for Your Use Case? - **Leader:** [Cloudflare Application Security and Performance](https://www.g2.com/products/cloudflare-application-security-and-performance/reviews) - **Highest Performer:** [ScoutDNS](https://www.g2.com/products/scoutdns/reviews) - **Easiest to Use:** [DNSFilter](https://www.g2.com/products/dnsfilter/reviews) - **Top Trending:** [Cloudflare Application Security and Performance](https://www.g2.com/products/cloudflare-application-security-and-performance/reviews) - **Best Free Software:** [DNSFilter](https://www.g2.com/products/dnsfilter/reviews) --- **Sponsored** ### Cloudflare Application Security and Performance Cloudflare is the connectivity cloud for the "everywhere world," on a mission to help build a better Internet. We provide a unified platform of networking, security, and developer services delivered from a single, intelligent global network that spans hundreds of cities in over 125 countries. This empowers organizations of all sizes, from small businesses to the world's largest enterprises, to make their employees, applications, and networks faster and more secure everywhere, while significantly reducing complexity and cost. Our comprehensive platform includes: - Advanced Security: Protect your online presence with industry-leading DDoS protection, a robust Web Application Firewall (WAF), Bot mitigation, and API security. Implement Zero Trust security to secure remote access, data, and applications for your entire workforce. - Superior Performance: Accelerate website and application loading times globally with our Content Delivery Network (CDN), intelligent DNS, and smart routing capabilities. Optimize images and deliver dynamic content with unparalleled speed. - Powerful Developer Tools: Empower your developers to build and deploy full-stack applications at the edge using Cloudflare Workers (serverless functions), R2 Storage (object storage without egress fees), and D1 (serverless SQL database). Cloudflare helps connect and protect millions of customers globally, offering the control, visibility, and reliability businesses need to work, develop, and accelerate their operations in today's hyperconnected landscape. Our global network continuously learns and adapts, ensuring your digital assets are always protected and performing at their best. [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=paid_promo&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=1952&secure%5Bmedium%5D=sponsored&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=10700&secure%5Bresource_id%5D=1952&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fdns-security-solutions%3Fpage%3D4&secure%5Btoken%5D=5ac413b722fa5b2c903200bc6133e57c2a94f05ed3324374089562da4e67a098&secure%5Burl%5D=https%3A%2F%2Fwww.cloudflare.com%2Fapplication-services%2Fproducts%2F&secure%5Burl_type%5D=paid_promos) --- ## What Are the Top-Rated DNS Security Solutions Products in 2026? ### 1. [UltraRecursive DNS](https://www.g2.com/products/ultrarecursive-dns/reviews) Neustar UltraRecursive is a customizable, enterprise-grade, cloud-based DNS service that helps protect organizations from malware, ransomware and objectionable content and delivers fast and reliable navigation globally to vital online applications. With UltraRecursive you can achieve near-zero latency for internal DNS resolution, receive instant cache updates to UltraDNS hosted zones, eliminate bad traffic before it reaches your network and end users, prevent internal users from accessing harmful or unwanted content, and control costs by implementing a cloud-based, managed solution. **Who Is the Company Behind UltraRecursive DNS?** - **Seller:** [Neustar](https://www.g2.com/sellers/neustar) - **Year Founded:** 1996 - **HQ Location:** Sterling, VA - **Twitter:** @Neustar (10,853 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/5349/ (945 employees on LinkedIn®) - **Ownership:** NYSE: NSR ### 2. [Vercara](https://www.g2.com/products/vercara/reviews) Vercara specializes in transforming unique customer needs into flexible cloud-based security solutions that adapt to your unique needs. Ensuring your success is at the core of our innovation. **Who Is the Company Behind Vercara?** - **Seller:** [Vercara](https://www.g2.com/sellers/vercara) - **Year Founded:** 1996 - **LinkedIn® Page:** http://www.linkedin.com/company/vercaraultra (218 employees on LinkedIn®) ### 3. [Vergecloud](https://www.g2.com/products/vergecloud/reviews) VergeCloud, India’s pioneering CDN, DNS, and cloud security platform. We deliver secure, high-performance edge solutions designed to power India's dynamic digital economy — primed to drive the future of global connectivity. **Who Is the Company Behind Vergecloud?** - **Seller:** [VergeCloud](https://www.g2.com/sellers/vergecloud) - **Year Founded:** 2023 - **HQ Location:** Bangalore, IN - **LinkedIn® Page:** https://www.linkedin.com/company/vergecloud (25 employees on LinkedIn®) ### 4. [Zscaler Zero Trust Firewall](https://www.g2.com/products/zscaler-zero-trust-firewall/reviews) Zscaler Zero Trust Firewall is a cloud-delivered security solution that extends firewall protection to all users, devices, and locations by implementing Zero Trust principles. Unlike traditional firewalls, this solution does not rely on physical appliances or network boundaries—instead, it integrates into the Zscaler Zero Trust Exchange, providing advanced, identity-based traffic filtering and protection for modern cloud and hybrid environments. This globally distributed firewall provides comprehensive Layer 7 inspection, enabling granular control, deep visibility, and real-time threat prevention across all internet and application traffic. By enforcing dynamic policies based on user identity, device posture, location, and context, Zscaler Zero Trust Firewall secures connections while eliminating risks like lateral movement and network exposure. Key Features and Benefits: • Cloud-Delivered Scalability: Provides enterprise-grade firewall protection without the limitations of legacy appliance-based firewalls. • Zero Trust Architecture: Enforces strict user and application segmentation to minimize the attack surface. • Layer 7 Inspection: Offers deep packet inspection to identify and block malicious application and internet traffic. • Integrated Threat Prevention: Leverages advanced security tools like intrusion detection/prevention (IDPS) and sandboxing to block sophisticated threats. • Dynamic Policies: Adapts access permissions and filtering rules based on identity, device posture, and real-time risk assessment. • Simplified Management: Reduces complexity with centralized cloud-based policy enforcement across global deployments. Designed for modern enterprises embracing digital transformation, Zscaler Zero Trust Firewall delivers robust, scalable security that protects users and applications seamlessly, wherever work happens. This solution is trusted by organizations worldwide to ensure safe connectivity while aligning with Zero Trust security strategies." **Who Is the Company Behind Zscaler Zero Trust Firewall?** - **Seller:** [Zscaler](https://www.g2.com/sellers/zscaler) - **Year Founded:** 2008 - **HQ Location:** San Jose, California - **Twitter:** @zscaler (17,676 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/234625/ (8,830 employees on LinkedIn®) - **Ownership:** NASDAQ:ZS ## What Is DNS Security Solutions? [Network Security Software](https://www.g2.com/categories/network-security) --- ## How Do You Choose the Right DNS Security Solutions? ### What You Should Know About DNS Security Solutions ### What are DNS Security Solutions? DNS (domain name system) security solutions protect the infrastructure and the websites it supports. They can identify potentially dangerous websites and content by redirecting end-user web traffic through certain filters. They can also prevent other attacks, including DNS hijacking and DNS tunneling. Most DNS security software can also detect and mitigate distributed denial of service (DDoS) attacks. DNS is one of the oldest protocols of the internet. It’s a naming database that locates and translates domain names into IP addresses, similar to how a phone’s contacts list matches names to phone numbers. DNS is also one of the most utilized protocols, making it a common target of network attacks. Most internet activities, including web browsing, heavily depend on the DNS directory to quickly locate an IP address, connect with the web server, and access the website’s content. Since the DNS functions as the backbone of internet connectivity, it’s natural to assume it is designed with the utmost cybersecurity features. Unfortunately, that’s not the case. When this infrastructure was created, malicious actors and security threats were not as prevalent as today. Organizations use DNS security solutions to protect against DNS server attacks, threats, and malware such as ransomware. **What Does DNS Stand For?** DNS stands for domain name system and acts as a translator between humans and computers. It is essentially a directory of domain names mapped with each website's IP addresses. ### What are the Common Features of DNS Security Solutions? The following are some of the core features within DNS security tools that can help companies protect their networks from malicious actors: **DNS filter:** DNS filter may be one of the many features offered by this type of protection solution or the only purpose of a specific tool. It’s also referred to as DNS-layer security and can be viewed as a way to cut off threats before they can attack. In other words, it is the first line of defense against cybersecurity infiltration. DNS filtering can help blacklist malicious and phishing websites and ultimately avoid the risk of being attacked. This feature doubles as a content filtering system, enabling companies to prevent employees from accessing harmful or inappropriate web content on company-managed devices and networks. **Bot protection:** With IoT devices becoming more prevalent, bot attacks are increasing. Malicious attackers may use botnets to steal employee data, send spam, or initiate DDoS attacks. Most DNS security tools come with features to detect and mitigate botnet attacks. **Prediction capabilities:** Some DNS security solutions utilize the power of machine learning to identify and predict malicious domains. These solutions can proactively identify newly staged attacker infrastructure and block them to protect against cyber threats by analyzing internet activity patterns. **Typo correction:** DNS security solutions may have features for the typo correction, which is incredibly important as attackers may create domains with misleading names, for example, “gogle.com”, and use them for phishing attacks. ### What are the Benefits of DNS Security Solutions? DNS security systems enable organizations to add an extra layer of protection between employees and the internet. With the increasing number of remote workers, DNS security applications help secure data inside and outside the office and make it safer to promote programs such as bring your own device (BYOD). The DNS wasn’t created with security in mind, making it vulnerable to several security threats. For example, since DNS heavily depends on caching, attackers may utilize an advanced technique called cache poisoning to exploit the behavior of servers and cache to serve harmful HTTP responses to users. Most DNS security software tools are equipped with essential features to fight cache poisoning. Another way to fight cache poisoning is with the help of DNS security extensions (DNSSEC). But buyers must be mindful not to confuse DNSSEC with DNS security systems, as the former is a feature that authenticates the responses to domain name lookups. This also means that DNSSEC doesn’t provide particular privacy protection for those lookups. Instead, it prevents attackers from poisoning or manipulating the responses to DNS queries. The following are some of the notable benefits of utilizing a DNS security solution: **Filter unwanted content:** As mentioned earlier, DNS security software solutions offer filtering, which is an excellent way to block malicious websites and reduce the chance of DNS attacks. Companies can use this feature to control how employees access the web. For instance, it can block unwanted websites with adult or inappropriate NSFW (not suitable for work) content. The main benefit of this feature is that buyers can implement it without installing any specific software on the devices. **Block advertisements:** Another benefit of DNS filtering is ad blocking, which is also a type of content filtering. Ads may have malicious apps hidden inside them or could be a strategy to extract employee information. Even if there isn’t any malicious intent behind an advertisement, it can still distract employees and reduce their performance. **Uncover shadow IT:** Shadow IT, which are IT systems deployed by employees without the approval of the IT department, can cause security and compliance issues and may also increase the IT spending at a company. Unsanctioned applications are also frequently targeted by attackers. Some DNS security software products help uncover shadow IT applications and provide insights into where the employees spend the most time online. **Prevent malware downloads:** Controlling internet access also means that DNS security applications can help prevent malware downloads from hacked or malicious sites. If malware is downloaded somehow, it will typically send “callback” signals to a host server to receive further instructions. If there’s a DNS security platform in place, it can block such signals. **Integrate with ease:** DNS security solutions easily integrate with a business’s existing network security ecosystem. These products typically come with flexible APIs and can be configured and deployed effortlessly. ### Who Uses DNS Security Solutions? **IT administrators:** IT administrators, or more precisely, internal IT management departments of organizations, are the most common users of DNS security solutions. These tools help administrators secure DNS servers and protect their employees from DNS-based attacks and secure sensitive data. #### Software Related to DNS Security Solutions Related solutions that can be used together with DNS security solutions include: [DDoS protection software](https://www.g2.com/categories/ddos-protection) **:** DDoS protection software solutions help prevent DDoS attacks and secure websites and applications. They monitor web traffic and set baselines for normal traffic loads. If the traffic inflow increases rapidly, botnet attack being one reason, the web filters will redirect web traffic to a controlled source. [Website security software](https://www.g2.com/categories/website-security) **:** As the name suggests, website security software protects websites from numerous internet-based attacks. It combines the features of DDoS protection software, [content delivery networks (CDN)](https://www.g2.com/categories/content-delivery-network-cdn), and web application firewalls. [Secure web gateways](https://www.g2.com/categories/secure-web-gateways) **:** Secure web gateways enable organizations to prevent internet-based threats and can help ensure employee compliance. They can filter websites and content to identify malware, block dangerous URLs, and prevent end users from engaging with them. [Web application firewalls (WAF)](https://www.g2.com/categories/web-application-firewall-waf) **:** This tool filters and monitors incoming traffic to protect web applications against malicious traffic. These tools can inspect traffic flow at the application level and block cross-site scripting and SQL injection attacks. [Bot detection and mitigation software](https://www.g2.com/categories/bot-detection-and-mitigation) **:** Bot detection and mitigation software monitors websites, applications, and networks to identify malicious bot activity. It’s an essential tool to prevent DDoS attacks, form submission abuse, web scraping, and other bot attacks. ### Challenges with DNS Security Solutions Most DNS security products use the DNS as a low-bandwidth, low-latency, and basic filter to protect end users from phishing and other malicious attacks. Although DNS security platforms can prevent numerous cyber attacks, it can be viewed only as the first line of defense. In other words, it is only one of the many tools required to maintain a healthy and secure network ecosystem. Additionally, DNS security software systems come with numerous limitations and challenges. **End-user circumvention:** End users may try to get around the filters enforced by a DNS security tool. And in many cases, they will succeed. This is a common limitation of DNS security systems and will defeat the purpose of having such a tool in place. Of course, businesses can overcome this limitation by setting up some firewall rules. But, it is better to look at the bigger picture and understand why end users are doing it in the first place. Educating end users about the benefits of having a DNS filter can help overcome this limitation. **Registrar hijacking:** An attacker can take advantage of the weak security practices, vulnerabilities, or carelessness of an organization, which would instantly make a DNS security tool ineffective. For instance, a malicious attacker may perform social engineering on an organization’s domain registrar to ultimately perform domain hijacking. This method of domain hijacking is called registrar hijacking. ### How to Buy DNS Security Solutions #### Requirements Gathering (RFI/RFP) for DNS Security Solutions Understanding the company’s requirements by performing an internal assessment should be the first step toward buying a DNS security software solution. In other words, buyers should try to understand what the tool means to their organization. This step of understanding what a particular software should do for an organization is called requirements gathering, and its success can significantly impact the effectiveness of the chosen software solution. Along with requirements gathering, buyers should have a fair understanding of the budget to purchase the software. This will empower them to choose the best software solution that fits their needs and budget. Unlike most other software, DNS security products may have a single purpose–DNS filtering. But, depending on the use case, businesses may want the DNS security tool to perform multiple functions, including content filtering, bot protection, and typo correction. Understanding whether the company requires advanced features such as real-time threat detection, predictive capabilities, or threat intelligence is essential. Not all DNS security systems come with artificial intelligence features. #### Compare DNS Security Solutions **Create a long list** After requirements gathering, buyers should create a long list of potential DNS security software products. This initial list can include any software solutions that meet the company’s basic requirements. At this point, instead of finding the right solution, the focus should be on eliminating the products that don’t offer critical functionality. For instance, if a software product can perform DNS filtering, it should be added to this list, regardless of what else it offers. **Create a short list** A buyer can create a short list from the long list by eliminating DNS security software products that don’t meet the company’s requirements or, in other words, don’t have the must-have features. In this step, buyers can also remove software products that don’t fit their budget. To refine the list further, buyers can eliminate tools without the nice-to-have features. Companies can compare the remaining products based on usability, features, pricing, and vendor support. Ideally, creating a short list with five to seven products is better. **Conduct demos** Product demos help understand a product's usability and features. Additionally, demos help buyers compare the particular product with others on the short list. To be fair and square, buyers should test the DNS security software products using the same use cases. Along with understanding the usability, demos are useful to examine the user experience of the software, ask questions about the features buyers care the most about, and check whether the features work as advertised. #### Selection of DNS Security Solutions **Choose a selection team** Like in the case of every software product, buying a DNS security software platform is a costly decision, so buyers should ensure that the right stakeholders are present to make the decision. For this reason, the organization should assemble a selection team, which includes IT administrators, security team professionals, IT managers, and key decision-makers. The team must consist of professionals who can use the DNS security solution, scrutinize it, and check whether it meets all the requirements. **Negotiation** After finding a product that fits the criteria, buyers should discuss the terms and conditions with the DNS security software vendor and negotiate the pricing. Negotiating is possible even if a vendor has mentioned specific pricing on their website. Buyers can request to lower the price by removing certain optional features. Vendors may also offer additional discounts for multi-year contracts. **Final decision** It’s advisable to test the software on a small scale for a short period before purchasing. It’s best to involve the day-to-day users of the software in this testing phase. They can be better judges of the usability and user experience of the software and offer valuable feedback. Software vendors will offer a free, short-term product trial in most cases. If the end users and the selection team are satisfied with the software, buyers can proceed with purchasing or contracting. If not, the buyer must re-evaluate the software options.