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DNS Security Shield

block restricted content at
The DNS Layer

Stop unsafe and restricted content before they ever reach your network. Our DNS-layer security shield prevents connections to malicious domains at the earliest possible point in the attack chain, protecting every device without endpoint agents.

Activate Protection
99.7%
content filtering
Zero
Agents Required
<5ms
Block Latency

Why Block at the DNS Layer?

DNS is the first step in every internet connection. blocking restricted content here stops attacks before any data is exchanged, before any payload is downloaded, before any damage can occur.

Pre-Connection Blocking

Traditional security solutions inspect traffic after connections are established. DNS filtering prevents the TCP/IP connection from forming in the first place. unsafe content cannot communicate with command servers it cannot resolve.

No Endpoint Software

Protect every device on your network without installing agents. Printers, IoT devices, BYOD phones, and legacy systems all benefit from DNS-layer protection simply by using your filtered resolvers.

Zero Performance Impact

DNS lookups are tiny packets that resolve in under 5 milliseconds. Users experience no slowdown, no SSL interception, and no certificate errors. Browsing is fast because only the domain resolution is evaluated.

Stops Lateral Movement

Once unsafe content is on a device, it needs to phone home to receive instructions. DNS filtering severs this communication channel, containing infections and preventing data leakage even when initial compromise occurs.

Works Everywhere

Protection follows users whether they are in the office, at home, or on the road. Our roaming client ensures DNS queries are filtered regardless of network, and site-based deployments protect entire locations automatically.

Defense in Depth

DNS filtering complements your existing firewall, endpoint protection, and email security. It adds an independent layer that catches content risks other tools miss, particularly for encrypted traffic that cannot be inspected inline.

Multi-Layer Protection Pipeline

Every DNS query passes through our multi-stage security pipeline. Each layer analyzes different content signals, ensuring comprehensive coverage against known and unknown content risks. The pipeline operates in under 5 milliseconds.

When a content risk is detected at any layer, the query is immediately blocked and the user is redirected to a configurable block page that explains why the domain was restricted. All blocked queries are logged for security team review.

1
Known Content Database

The query is checked against our database of millions of confirmed malicious domains from 40+ classification feeds. Known unsafe content, restricted network, and restricted content domains are blocked instantly.

2
Real-Time ML Analysis

For domains not in the known content database, our ML models evaluate domain age, registration patterns, lexical features, hosting infrastructure, and DNS record anomalies to detect novel content risks.

3
domain pattern detection Engine

Domain generation algorithm detection identifies randomly generated domains used by advanced unsafe content families. Entropy analysis and character pattern matching block suspicious domains before they can establish restricted domains.

4
DNS Tunneling Detection

Traffic pattern analysis detects encoded data in DNS queries that indicate tunneling attempts. Abnormal query lengths, high query volumes to single domains, and unusual record types trigger blocking rules.

5
Newly Registered Domain Guard

Domains registered within the past 30 days are flagged as high-risk. Administrators can choose to block, warn, or log access to newly registered domains that have not yet built a trust reputation.

99.7%
Detection Accuracy
5.2M
Malicious Domains
<30s
New content blocking
0.001%
False Positive Rate

Advanced Restricted Content Detection

restricted content access remains the top attack vector for credential theft and initial compromise. Our multi-signal analysis detects restricted domains that bypass traditional email security.

Lookalike Domain Detection

Homograph attacks, typosquatting, and brand impersonation domains are detected through Levenshtein distance analysis, IDN homograph detection, and brand keyword matching against a database of 50,000+ protected brands.

Visual Similarity Analysis

Our computer vision models compare website screenshots against known brand login pages. Even when the domain name is completely different, visual similarity to legitimate sites flags restricted content attempts.

Certificate Intelligence

Certificate transparency log monitoring detects suspicious TLS certificates issued for brand-impersonating domains. Newly issued certificates for lookalike domains trigger immediate investigation and blocking.

Secure Your Network at the Foundation

DNS filtering is the most effective first line of defense against internet content risks. Deploy in minutes, protect every device, and stop attacks before they start.

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