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What is Content Filtering?

Web content filtering is the practice of blocking access to internet content that may be considered offensive, inappropriate or dangerous. Content filtering is a method used to prevent web-borne threats from entering the IT network.

Content filtering software ensures malicious websites cannot be accessed. Malware and ransomware attacks on businesses are increasing and phishing is a major business risk. By implementing a content filtering layer, businesses can improve their defences against these threats and prevent costly data breaches. Web content filtering is about managing the types on web content users (employees, guests, students) can access while connected to a business’s wired or wireless network.

How Content Filtering works?

Content filtering works by using hardware or content filtering software-based solutions to establish rules about the types of sites that may be visited. Using keywords or other common traits between sites, web content is classified into categories such as adult, alcohol, gambling.

Web content filtering tools can be configured to prevent end users from accessing harmful or inappropriate websites.  The techniques that result in malware and/or stolen login credentials and data, often enter the network as web-borne threats, hidden in websites, and even online ads. With content filtering software, phishing and malware laden websites can be blocked and end users can be prevented from downloading infected files.

By using a web content filtering solution, an enterprise can manage employee access of dangerous websites, even when working remotely, without interrupting normal working patterns. By applying content filtering the web-borne threats can be controlled.

Did You Know?


businesses experienced a DNS attack


malware & spyware domains categorised a day


predefined categories by default


of websites tested by Google for malware were infected

How Content Filtering helps combat phishing and ransomware attacks

Blocking phishing and ransomware attacks requires a combination of measures.  A web filtering solution is recommended to block attempts to visit the malicious websites where the phishing pages are hosted. A content filter sits between your end users and the Internet and applies controls over the websites that can be accessed and the files that can be downloaded. The main function of a web filter is content control to restrict access to NSFW websites and block phishing websites and malware downloads.

Cloud content filtering solutions such as WebTitan can be used to control the websites that employees can access on their corporate-issued phones and mobile devices and will provide protection no matter where an employee accesses the Internet.

What is DNS Content Filtering

DNS content filtering is another way to control the types of web content that can be accessed via wired or wireless networks. Businesses use DNS content filtering to enforce internet usage policies and prevent employees from accessing malicious websites. Internet Service Providers use DNS content filtering to ensure customers cannot access any content that violates laws in their country.

DNS content filtering occurs at the DNS lookup stage. In a fraction of a second, a series of checks are performed to determine if the user should be allowed to visit a particular webpage.  These checks are important as new web pages and web content are constantly being uploaded and the content of existing webpages regularly changing. If websites are found to violate an organizations filtering policies, access to those web pages will be blocked.

With DNS content filtering, controls are applied before any content is downloaded. If the website passes all the checks, the content will be displayed in the user’s browser. If the checks fail, it will display a local DNS block page. The block page explains that the webpage cannot be displayed as well as the reason why. DNS content filtering solutions allow policies to be applied for the entire organization, for different user groups, roles or individual users. Enterprise level DNS content filtering solutions have highly granular controls, so it is possible to precisely control the types of content that can be accessed.

DNS content filtering is another way to control the types of web content that can be accessed via wired or wireless networks.

Content Filtering Software for Schools

Keeping objectionable content away from children is one of the more obvious use cases for web content filtering. Content filtering software for schools is also a requirement for schools for CIPA compliance. CIPA requires schools to implement measures to prevent children from accessing obscene images.

WebTitan OTG for Chromebooks is a cloud content filtering solution for the education sector that allows schools to carefully control the websites that can be access by students both in the classroom and offsite. Schools can easily devise filtering policies for all pupils or specific groups of students and apply those filtering polices in the cloud. The solution allows schools to enforce the use of Safe Search and prevent access to age-inappropriate web content to keep students safe.

WebTitan OTG for Chromebooks delivers fast and effective user- and device-level content filtering and empowers students to discover the Internet in a safe and secure fashion, while also ensuring compliance with federal and state laws such as the U.S. Children’s Internet Protection Act (CIPA).

Hear from our Customers

Excellent product thats so easy to use and manage.

What do you like best about WebTitan Web Filter? Excellent product that's so easy to use and manage. What do you dislike about WebTitan Web Filter? All the benefits outweigh the slight technical glitches. What problems is WebTitan Web Filter solving and how is that benefiting you? Restricts student access to unwanted sites easily.

Dave W.

Director of Training

Very strict service when set up properly

What do you like best about WebTitan Web Filter? I have a feeling of comfort knowing that users are not able to get to compromised websites, and NSFW websites as well. It blocks everything! Sometimes a little too much if that is such a thing, haha. Recommendations to others considering WebTitan Web Filter: If you have a VM, install their OS on your box to help with even more filtering! What problems is WebTitan Web Filter solving and how is that benefiting you? No breach into our system at all since the installation of WebTitan Web Filter (Hybrid) I also know that users cannot access things they shouldn't be accessing as well.

Josh F.

IT Administrator

Great product at a fraction of competitors price.

What do you like best about WebTitan Web Filter? It's very easy to use and configure from the web interface. WebTitan is a fraction of the cost of other products like Cisco Cloud, and yet provides much the same protection. I can manage users network wide. Filter Website by category and custom lists. WT is blocking most if not all of our spam and malware Recommendations to others considering WebTitan Web Filter: If you are looking for a product to filter your entire network both on and off site and you don't have the budget to waist on products 10 times the price, WebTitan is for you.; What problems is WebTitan Web Filter solving and how is that benefiting you? We have our mail server blacklist and we're dealing with a rash of botnet style attacks. WebTitan solves the issue within minutes of enabled it network wide.

Dave M.

Director of Technical Arts

Superb DNS protection

What do you like best about WebTitan Web Filter? Like all TitanHQ solutions, WebTitan is immediately ready for use and requires minimal technical intervention to protect all internal personnel. With the OTG client, remote, domestic, and traveling workers can also be protected. What to say? An all-inclusive DNS protection. Recommendations to others considering WebTitan Web Filter: Superb protection at an affordable price. What problems is WebTitan Web Filter solving and how is that benefiting you? The categories of sites deemed risky are blocked, preventing voluntary or involuntary clicking on the wrong link, which risks compromising company security, as well as limiting distractions for staff


Presales Engineer

Simple, easy to use yet powerful web filter

What do you like best about WebTitan Web Filter? Deployment couldn't be easier and management is very straightforward. In the simplest form you just need to point your DNS forwarders to their DNS server and add your location IP to the portal. For roaming users or locations with a dynamic IP a lightweight agent is included for free. Active Directory integration adds user level reporting and the VM required is also included. Recommendations to others considering WebTitan Web Filter: Give their trial a go. You won't be disappointed. What problems is WebTitan Web Filter solving and how is that benefiting you? Primarily security. Blocking malware infected websites and links in phishing emails.

Ken B.

VP Professional Services

Content Filtering With WebTitan Cloud

WebTitan DNS content filtering provides flexible controls for content filtering of online activity.  WebTitan Cloud is a DNS based web content filtering solution that provides complete protection from online threats such as viruses, malware, ransomware, phishing and comprehensive content filtering. WebTitan Cloud is a low maintenance solution that can be set up in five minutes to stop your users from accessing inappropriate content online.

Our intelligent AI driven real time content categorization engine combines industry leading anti-virus and cloud based architecture. This makes the WebTitan Cloud content filter an ideal solution for organizations needing maximum protection and minimal maintenance. WebTitan customer testimonials speak for themselves.

WebTitan DNS security solutions help stop web security threats by:

  • Blocking users from landing on malware laden website
  • Scanning file downloads for malware.
  • Preventing users from accessing categories of websites deemed to be suspicious, dangerous or inappropriate.
  • Preventing internal employee breaches  - c2 call backs from phishing links
  • Stopping compromised devices from communicating with command-and-control services.
  • Less pressure on other security solutions such as AV and firewall
  • AI powered threat detection
  • Blocking of domains regardless of http or https
  • Continuous updating of url classification databases

WebTitan Cloud is an ideal alternative to OpenDNS Cisco Umbrella. We also have a detailed Cisco Umbrella pricing comparison for prospective new customers.  

Do you have more questions about DNS Content Filtering? Contact us today.

Susan Morrow

Susan Morrow


Talk to our Team today

Talk to our Team today