Cartoon bee with a shield representing cyber security services. Remote Access Open Support Request

DNS Filtering

Powered by DNSFilter Pro

DNS Filtering & Web Protection

Blowfish Technology delivers AI-powered DNS filtering to North West businesses – powered by DNSFilter Pro. Block malware, phishing sites, ransomware and inappropriate content before it ever reaches your network or your employees’ devices.

What DNSFilter Blocks

  • Malware & ransomware delivery sites
  • Phishing & credential harvesting pages
  • Botnet & command and control servers
  • Inappropriate & non-work content
  • Newly registered & suspicious domains
  • Covers all devices including remote workers
AIPowered threat detection in real time
<1msDNS query response time – no slowdown
AllDevices – office, remote & mobile
NoHardware required – cloud-based deployment

The Problem

Most Attacks Start with a DNS Request

Before malware can communicate with an attacker, before a phishing page loads in a browser, before ransomware can phone home to its command and control server – there’s a DNS request. Every connection to the internet starts with one.

DNS filtering intercepts these requests and checks them against a continuously updated threat intelligence database. Malicious domains are blocked before the connection is ever made – stopping the attack at its very first step.

DNSFilter Pro, managed by Blowfish Technology, provides this protection for every device on your network and every remote worker – a fast, lightweight and highly effective security layer that most SMEs don’t have.

What Happens Without DNS Filtering

Malware Downloads – Employees unknowingly download malicious files from compromised or fake websites

Phishing Pages Load – Fake login pages for Microsoft 365, banking and supplier portals capture credentials

Ransomware Communicates – Infected devices phone home to attacker servers, enabling remote control and encryption

Unfiltered Browsing – Staff access inappropriate or high-risk content on company devices with no visibility or control

How It Works

DNSFilter Pro – Under the Hood

DNSFilter sits between your devices and the internet – analysing every DNS request in milliseconds and blocking connections to malicious, suspicious or inappropriate domains before they can cause harm.

1

Cloud-Based Deployment

Blowfish Technology points your network DNS to DNSFilter’s resolvers – no hardware to install, no complex configuration. Office networks and remote workers are both covered.

2

AI Threat Classification

Every DNS request is checked against DNSFilter’s AI-powered threat intelligence database – identifying malicious, phishing, malware and newly registered suspicious domains in real time.

3

Instant Blocking

Blocked requests are stopped before the connection is made – the malicious page never loads, the malware never downloads, the ransomware never phones home.

4

Content Category Filtering

Set content policies – blocking social media, gambling, adult content or any other category on company devices during work hours or permanently.

5

Roaming Agent for Remote Workers

A lightweight roaming agent extends DNS filtering protection to employees working from home or on the road – every device protected regardless of location.

6

Reporting & Visibility

Real-time dashboards and reports show every blocked request, threat category and browsing pattern – giving Blowfish Technology the intelligence to keep you protected.

Key Features

Everything Included as Standard

?

AI-Powered Threat Detection

Machine learning categorises new domains in seconds – identifying threats that signature-based tools miss, including newly registered domains used in targeted attacks.

?️

Malware & Ransomware Blocking

Blocks known malware distribution sites, ransomware command and control servers and exploit kits – preventing infections before they begin.

?

Phishing Protection

Phishing domains – including typosquatted versions of Microsoft 365, banks and HMRC – are blocked before the page ever loads in your employee’s browser.

?

Remote Worker Protection

The roaming agent ensures protection follows employees wherever they work – home offices, coffee shops, client sites – extending security beyond your network.

?

Custom Content Policies

Granular content filtering by device, user group or location – blocking categories like social media, gambling and adult content on company devices.

?

Real-Time Reporting

Detailed dashboards show every blocked request, threat by category, top blocked domains and browsing patterns across your organisation.

Why Blowfish + DNSFilter

Stop Threats Before They Reach Your Network

DNS filtering is one of the most cost-effective security layers available. Blowfish Technology deploys and manages DNSFilter Pro for North West businesses – adding this essential protection with zero complexity.

Get in Touch

No Hardware Required – Cloud-based deployment in minutes, no on-site equipment
Zero Performance Impact – Sub-millisecond DNS resolution – users won’t notice any difference
Covers Remote Workers – Protection follows your staff wherever they work
AI-Powered – Catches new and emerging threats that signature-based tools miss
Supports Cyber Essentials – Contributes to boundary firewalls and internet gateway controls
Fully Managed by Blowfish – Setup, policy management and reporting all handled for you

Frequently Asked Questions

What is DNS filtering and how does it work?

DNS filtering intercepts the DNS requests your devices make when connecting to websites. DNSFilter checks each request against its threat intelligence database and blocks the connection if the domain is malicious or falls into a blocked content category – in milliseconds before any content is loaded.

Will DNS filtering slow down our internet connection?

No. DNSFilter operates with sub-millisecond response times – your team will not notice any difference in browsing speed.

Does it protect employees working from home?

Yes. DNSFilter includes a roaming agent that extends the same protection to remote workers regardless of which network they’re connected to – essential for hybrid or fully remote teams.

Can we block specific websites or categories of content?

Yes. DNSFilter allows granular content filtering policies – block specific domains or entire categories such as social media, gambling or adult content. Policies can be applied globally, by user group or by device.

How much does DNS filtering cost?

Priced per user per month. Blowfish Technology provides it as a managed service – handling deployment, policy configuration and ongoing management. Contact us for a tailored quote.

Ready to Block Threats Before They Reach Your Network?

Talk to Blowfish Technology about deploying DNSFilter Pro for your North West business.

Get in Touch
Back to Cyber Security

Join Our Mailing List


    We never share your data, for more information please read our privacy policy.