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DNS Filtering

Advanced DNS-based prevention that blocks dangerous or undesirable domains before threats reach devices or networks

The Problem

Why DNS Filtering is critical for real online protection

Traditional security tools often try to neutralize threats after they have already reached a device, which is too late. Modern cyber threats include invisible malware, perfectly cloned scam pages, fraud-oriented sites, and explicit content spread everywhere. These threats are increasing in complexity, and human review alone can’t keep up. DNS, or Domain Name System, translates human-readable domains into machine addresses. By monitoring and filtering DNS resolution in advance, FlashStart stops access to undesirable domain categories before any threat can impact the network or endpoints.

5B

access requests filtered every day across global infrastructure.

304M

pages blocked daily for security or policy reasons.

8%

of blocked content involves malware threats and scams, with the remaining .

92%

related to inappropriate or unwanted content categories.

Protection and prevention

FlashStart’s DNS Filtering technology operates at the DNS resolution level. Instead of waiting for content to load or inspecting URLs after download, it examines domain activity before resolution, blocking resolution when the domain falls into an undesirable category. This prevents attacks and unwanted browsing before they ever touch devices. Real protection starts with prevention: by stopping DNS resolution of bad domains, threats are neutralized at the earliest point in the connection process. Rather than relying only on keyword matching or outdated URL blacklists, FlashStart leverages a classification of domains into stable, trackable categories, making filtering far more accurate and effective. DNS Filtering applies to all network traffic, including links opened from emails or messages (phishing), without requiring additional software or hardware on endpoints.

Why should you choose FlashStart protection?

Thanks to the global Anycast network and the use of artificial intelligence, we guarantee you immediate, reliable, and constantly updated internet protection tailored to your business model.
Extended protection

Blocks malware, ransomware, phishing, and other cyber threats in real time before they reach your network.

Guaranteed speed

Ultra-fast DNS filtering with minimal latency. Security never slows down your business operations.

Global coverage

Globally distributed cloud infrastructure for optimal performance, no matter where you are.

Parental control

Filter inappropriate content and manage access to specific categories of websites according to your company policies.

Detailed reports

Intuitive dashboard with real-time statistics and customizable reports for monitoring network activity.

Active 24/7

Continuous protection without interruptions. Our system is always active to protect your infrastructure.

Organizations

Designed for your organization

If you are looking for a versatile and effective security solution, the FlashStart filter is perfect for remote work environments, complex corporate networks, or simple connections.
MSP
ISP and WISP
Retailers
OEM & Manufacturers
Businesses
Schools

Frequently asked questions

DNS Filtering analyzes DNS resolution requests and prevents access to domains classified as dangerous, inappropriate, or otherwise undesirable before any content is downloaded.
By blocking DNS resolution for domains associated with malware, scams, and phishing sites, DNS Filtering prevents connections before malicious payloads reach devices.
Yes. FlashStart DNS Filtering works at the resolution level with a global Anycast
DNS Filtering can block malware, scams, fraud sites, inappropriate content, and even categories like social media, games, or streaming based on business policy.
No. DNS Filtering applies at the DNS layer in the cloud, protecting all Wi-Fi connected devices without endpoint agents.