The Cold Hard Facts Behind Free DNS
Organizations rely on DNS for critical business applications with many enterprises using a combination of DNS, DHCP and IPAM solutions, including free Microsoft DNS among others.
Key takeawaysThis key takeaway was generated through LLMs crawling the page and coming up with an overview of the content.The article examines the hidden costs of relying on free Microsoft DNS for enterprise DNS, DHCP and IPAM needs, illustrating how initially attractive low-cost solutions can impose heavy administrative burden, increase unexpected DNS issues, and amplify outage-related losses. It frames a real-world operational risk where limited admin access and accidental deletions caused major intranet outages, and explains a three-part Cost of Free calculator—administrative costs, unexpected DNS issues, and outages/downtime—to quantify the financial impact. The piece urges organizations planning to scale, adapt to cloud or mobile initiatives, or reduce downtime risk to re-evaluate free DNS before those hidden costs erode business continuity and strategic goals.
What specific categories does the Cost of Free calculator use to quantify the expense of using free Microsoft DNS?
The Cost of Free calculator breaks the expense into three concrete categories: administrative costs, cost of unexpected DNS issues, and cost of outages and downtime. Administrative costs estimate the baseline expense of core staff by incorporating average yearly network administrator salary, the average number of weekly tasks, and the time to complete those tasks. Cost of unexpected DNS issues uses the weekly number of DNS-related tickets and the resolution time per ticket to quantify time and money spent firefighting. Cost of outages and downtime factors expected outages per year, average outage length, and a per-outage cost basis to capture the severe financial impact of interruptions.
How did relying on free Microsoft DNS create operational risk in the example provided?
The article describes a major brand relying on free Microsoft DNS where only three network administrators had the knowledge and only when using specifically assigned laptops, creating a single-point-of-failure operating model. During a busy season, an accidental zone deletion occurred, taking the intranet offline for half a day and halting critical applications. This example highlights operational risks from limited central management, brittle administrative procedures, and the potential for human error to cause significant service disruption and business impact when DNS is not centrally manageable and resilient.
Why does the article argue that free Microsoft DNS may be unsuitable for organizations planning to scale or move to cloud and mobile services?
The article contends that Microsoft DNS is not designed for centralized management, which inhibits progress on strategic initiatives like cloud migration and mobile offerings. It argues that while free DNS may appear sufficient if enterprise needs are static for decades, organizations planning to scale, adapt, or shift architectures will face growing administrative overhead, more frequent DNS issues, and elevated outage costs. By quantifying administrative burden, ticket-driven firefighting, and downtime losses, the article shows that the hidden costs and operational constraints of free DNS can impede agility and expose the business to disproportionate risk as it grows or modernizes.
Calculating the Cost of Free
Organizations rely on DNS for critical business applications with many enterprises using a combination of DNS, DHCP and IPAM solutions, including free Microsoft DNS among others. At first glance, Microsoft DNS seems like a great option, but as time goes on, the needs for patches increase, important resources get reallocated and you find yourself scrambling to hire more system administrators to fight the fires Microsoft DNS created. What started as a solid architecture begins to crumble, putting your entire organization at a disadvantage.
One the world’s largest brands used free Microsoft DNS; however, and only three network admins were equipped with the knowledge to manage changes, and even then could only do so with specifically assigned laptops. One day someone accidentally deleted a zone during one of their busiest seasons, taking out the intranet for half a day and halting critical applications.
Looking grow your business in the future? Not so fast. Looking to adjust to a changing marketplace? Think again. There’s no such thing as a free lunch, and free DNS can only stand up for so long. If you don’t see your enterprise’s needs changing for the next 50 years, sure, free DNS is fine. But if you have plans to scale, adapt, or shift, it’s time to take a look in the mirror.
The Numbers Don’t Lie
“Microsoft is not designed to be managed centrally. This prevents us from moving forward on important business initiatives like moving processes to the Cloud and offering mobile options.”
There are cold, hard numbers behind the cost of free DNS, and no enterprise is the same. We’ve created The Cost of Free calculator to provide some insight into just how much free Microsoft DNS is siphoning out of your business. Each company’s cost of free is broken down using three categories: administrative costs, unexpected DNS issues, and outages and downtime. Take all these variables into account, plug them into our calculator, and you get a holistic snapshot of your enterprise’s cost of free.
1) Administrative Costs
First you must know your basic admin costs. Administrative costs account for core staff and essential tasks. Fundamentally, they cover your team of network administrators without taking any extra, unexpected circumstances into account (That’s our next step). Incorporating the average yearly salary of a network administrator, the average number of weekly tasks and time it takes to complete said tasks, will give you a well-rounded admin snapshot.
2) Cost of Unexpected DNS Issues
You can only plan for so much, and you don’t want to spend the majority of your time and resources putting out fires. Approximating the number of DNS-related tickets your network admins deal with weekly along with the time it takes them to resolve a single ticket will help you understand if you’re spending too much time, attention and money on issues that could potentially be avoided with another DNS provider.
3) Cost of Outages and downtime
Service outages and downtime are the bane of any organization’s existence. And while it’s reasonable to anticipate a certain amount of downtime, it can get to a point where it becomes excessive. By taking the number of expected outages per year and the average length of a single outage into account, and basing the cost on $300,000/per outage1.
Downtime events cost the average midsize company $5 million a month. And when you lean on the unstable, deteriorating foundation of free DNS, you leave yourself that much more vulnerable to downtime events, further exacerbating outage costs.
It’s called “free DNS”, but you get what you pay for, and free Microsoft DNS is costing you in ways that aren’t always immediately obvious. You might not think it’s that bad. After all, it’s been working for this long, why make a change now? That opinion is bound to change when you can assign cold, hard numbers to these costs. Microsoft DNS shifts from “This is great”, to “This isn’t that bad” and ultimately ends with “This is worse than I thought.”
Don’t settle for a crumbling DNS foundation. It’s time to come face to face with your cost of free.
Learn more about the true cost of free DNS in our amazing eBook.
1 Gartner analyst, Andrew Lerner. URL: https://www.itproportal.com/features/what-does-a-network-outage-really-cost/
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Anna is a passionate content writer who’s always eager to learn something new about cyber security.
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