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DNS filter for companies: block inappropriate content, phishing, and malware

Enable a DNS web content filter in minutes. Block site categories, reduce scam risks, and gain visibility into what happens on the network — with group policies and reports.

  • ✅ Category blocking (adult content, betting, social networks, streaming, and more)
  • ✅ Protection against phishing and malware before access
  • ✅ Policies by group/device and management reports
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DNS filter for companies: block inappropriate content, phishing, and malware

What is Lumiun DNS?

Lumiun DNS is a DNS management and security solution that provides protection against digital threats and optimizes internet usage in corporate and institutional environments.

Lumiun DNS dashboard
Cybersecurity.
Protects against malicious websites, phishing, ransomware, and more.
Control.
Blocks unwanted content, promoting focus and productivity.
Monitoring.
Easy to integrate and monitor with detailed reports.

Create your free account

DNS filter

What is DNS filtering (web content filtering)?

DNS filtering is a practical way to control what can or cannot be accessed on the company internet. It blocks sites and categories before the page loads — reducing risks and distractions.

With Lumiun DNS, you apply rules by department, unit, or device (e.g., finance, support, visitors), with exceptions and schedules. Ideal for SMBs, schools, branches, and MSPs.

DNS filter

How does the DNS web content filter work in Lumiun DNS?

How the DNS filter works in short:

  • 1 The user accesses a website or app.
  • 2 The device queries Lumiun DNS.
  • 3 The rule (category/list/policy) is applied.
  • 4 If it is forbidden, access is blocked immediately.
  • 5 The manager tracks reports and logs in the dashboard.
How it works in short:

How does the DNS filter work in Lumiun DNS?

You point your network (router, firewall, or server) or install the agent on devices. From there, each access goes through Lumiun DNS: if the site is in a blocked category or is malicious, access is blocked automatically. You monitor everything in reports and adjust rules when needed.

How does the DNS web content filter work in Lumiun DNS?

Flexible enforcement:

  • for the entire company,
  • for a specific branch, department, or floor,
  • by groups (Finance, Sales, Support, Visitors),
  • or by individual device, with schedules and exceptions.
Flexible enforcement:

Easy integration with leading routers, firewalls, and servers

See all

MikroTik pfSense TP-Link Intelbras Android Windows DNS Server Servidor Linux Fortinet

DNS filter

What Lumiun DNS's DNS filter blocks

Combine security, productivity, and custom rules to control web content with precision.

Security

Blocking threats and malicious domains.

Advanced Protection

Blocks harmful sites, phishing, and malware. This filter prevents various types of attacks, increasing security.

Block child sexual abuse material

Blocks sites containing videos or images of child sexual abuse. This filter is in partnership with the Arachnid Project.

Ads and trackers (adblock)

Bloqueia os principais anúncios e rastreadores nos dispositivos. A ativação deste filtro pode comprometer o funcionamento de alguns sites.

Cryptojacking

Domains frequently involved in unauthorized use of devices for cryptocurrency mining.

New domains with phishing risk

Blocks recently registered domains (NRD) and classified with high chance of being used in phishing scams, including data theft.

New domains with suspicious names

Filters sites with high entropy names and newly registered domains (NRD), often used by malicious programs.

Parked domains

Domains that are no longer controlled by the original owner or are for sale. The content of these sites may be misleading to non-technical users.

Artificial intelligence (AI)

Blocks access to generative AI services that may pose risks of data leakage or misuse. Manually allow the services you want on your allowlist.

Google
Bing
YouTube

SafeSearch

Enable SafeSearch on Google, Bing, and YouTube to keep adult content out of your search results.

Productivity and focus

Control distractions and inappropriate categories.

App and category blocking

Social networks, messaging, games, video, music, shopping, news, sports, entertainment, and technology.

Adult content blocking

With a simple click, you can block adult content sites such as pornography and violence.

Blocking of gambling and gaming websites

Blocks gambling and gaming websites, preventing potentially harmful and unregulated activities on your network.

Piracy blocking

Blocks websites, P2P protocols, streaming sites, and generic video hosting services used for illegal distribution of copyrighted content.

Free choice and controls

Customize blocks by lists and schedules.

Custom blocklist

Adicione domínios específicos ou importe listas completas para reforçar o filtro de conteúdo web.

Set free time

Create exceptions by time or day of the week for specific categories and sites.

Need something different?

Add any domain manually, import ready lists, and combine exceptions by group or device.

DNS filter

Benefits of using the Lumiun DNS filter

Block phishing and malware before the click

Reduce incidents with automatic DNS blocking of malicious domains.

Content control with simple rules

Block categories like adult content, betting, social networks, and streaming with a few clicks.

Policies by team and schedule

Apply different rules by department and create exceptions/free-time schedules when needed.

Activate without replacing the router or buying hardware

It works by pointing the network DNS or installing an agent on devices.

Reports for management and auditing

See accessed domains, blocks, and trends by group/device.

Standardize rules across branches and clients (MSP)

Replicate policies and keep everything centralized in a single dashboard.

DNS filter

Real-world use cases

Companies and offices

  • Reduce distractions and bandwidth usage (social networks and streaming)
  • Block betting and inappropriate sites on the network
  • Protect against scams via malicious links and domains (phishing)

Schools and universities

  • Block adult content, violence, betting, and inappropriate sites
  • Allow educational platforms by schedule, class, or lab
  • Apply different policies for students and teachers

MSPs and IT providers

  • Deliver protection and control as a service, with centralized management
  • Standardize policies per client and reuse rules
  • Generate reports for accountability to management

Branches, franchises, and guest Wi-Fi

  • Repeat the same policies across all locations
  • Create specific rules for guest Wi-Fi
  • Set exceptions for leadership or specific devices

DNS filter

Frequently asked questions about DNS filtering and web content filtering

Filtro DNS é uma forma simples de controlar a navegação: ele analisa o domínio acessado e bloqueia categorias e sites maliciosos antes da página abrir.

Na prática, sim. O filtro DNS é uma das formas mais rápidas de aplicar um filtro de conteúdo web, bloqueando o acesso já na consulta de domínio.

Categorias (adulto, apostas, redes sociais, streaming etc.), sites específicos e domínios maliciosos (phishing e malware), com listas de permissão e exceções.

Não. Você pode apontar o DNS no roteador/firewall/servidor ou instalar o agente nos dispositivos.

Sim. Você cria políticas por grupo (ex.: financeiro, atendimento, visitantes), com exceções e horários de liberação quando fizer sentido.

Uma página de bloqueio informando que o site foi restringido pela política. O registro também aparece no painel para auditoria/gestão.

Sim. Você acompanha tentativas bloqueadas, domínios acessados e tendências por grupo/dispositivo.

Em geral, poucos minutos: criar a conta e apontar o DNS da rede (ou instalar o agente nos dispositivos).

Start your security and control journey with DNS filtering

Sign up for an account and get support from our analysts via email, chat, or WhatsApp for configuration and monitoring.

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5 out of 5 stars

“Lumiun DNS is fantastic, intuitive, functional, and assertive. Everything is great! I've been using Squid and pfBlocker-NG on pfSense, and Lumiun DNS is far superior. It's like upgrading from MS-DOS to Windows or from GTA2 to GTA V, graphically speaking.”

Ruy Barbosa
ConsulTI