DNS filtering and DNS Safe Search
DNS Filtering Services
Every web request is checked against constantly updated threat lists. Phishing, malware and unwanted content are blocked at the DNS level, in the office and on the road.
- Blocks phishing and malware domains
- Safe Search and content categories you choose
- Works on and off the office network
Trusted by 2,000+ businesses in 18 states
- Certified engineers
- 24/7 monitoring
- Proactive security
- Strategic guidance
Recognized byCRN, Channel Futures and Clutch
Stops threats early
Bad domains blocked before a connection is made.
Protection everywhere
In the office, at home and on public Wi-Fi.
No slowdown
Checks take milliseconds and users barely notice.
Why DNS filtering
Most attacks start with a link
Phishing emails, poisoned ads and compromised websites all rely on someone reaching a bad domain. DNS filtering stops that connection before the page ever loads, even when a user clicks. Get a free security review →
Phishing links get clicked
Even trained staff click a convincing link now and then.
Laptops leave the office
Home and public Wi-Fi bypass the office firewall.
Unwanted content on work devices
Schools and public spaces need Safe Search and category controls.
What is included
A quiet layer of protection, managed for you
Users barely notice it. Attackers do.
Threat blocking
Known malicious, phishing and newly registered domains blocked before a connection is made.
Content filtering
Block categories you do not want on company devices, from gambling to adult content.
DNS Safe Search
Explicit results filtered out of search engines, important for schools and public spaces.
Roaming protection
Laptops stay protected on home and public Wi-Fi, not only in the office.
Allow and block lists
Your own exceptions, handled by our help desk when you need a site opened or closed.
Reporting
See what was blocked and why, useful for audits and policy reviews.
How it works
What happens when someone clicks a link
- RequestA browser or app asks DNS where a website lives.
- CheckThe domain is compared with threat intelligence and your policy.
- Block or allowBad or unwanted sites get a block page; everything else loads as normal.
- LogThe decision is recorded for reporting and investigation.
What changes
Fewer infections, cleaner browsing
One of the simplest security layers with one of the biggest payoffs.
- Fewer phishing winsClicks on bad links end at a block page.
- Consistent policyThe same rules on every device, everywhere.
- Audit-friendlyReports show what was blocked and why.
- Managed exceptionsOur help desk handles allow and block requests.
What clients say after the ticket closes
4.7Google rating across our 21 local offices.
See plans and pricingVery helpful, quickly solved my problem, and explained why I was having the issue in the first place.
Thanks for your help! Quick, nice, and efficient answers, as always.
Quick fix to my issue. Corporate Technologies always provides excellent service.
Works best with
Related managed IT services
Frequently asked questions
Straight answers before the first call.
Something else? 1-866-363-4628
Prefer to read first? The checklist most of our clients used before they called: how to evaluate an MSP, in 20 minutes.
Get the checklistWhat is DNS filtering?
DNS turns website names into addresses. DNS filtering checks each request against threat and category lists and blocks dangerous or unwanted ones before the site loads.
What is DNS Safe Search?
It forces the safe search mode of search engines, so explicit results are filtered out. Schools, libraries and many businesses use it.
Will it slow down our internet?
No. The check happens in milliseconds as part of the normal DNS lookup.
Does it replace a firewall or antivirus?
No. It is one layer that stops many threats early, working alongside a managed firewall and endpoint protection.
Block the bad link before it loads
A free 30-minute review shows how DNS filtering fits with the security you already have.















