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KerioControl vs Zyxel Unified Security Gateway comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 7, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Unified Threat Management (UTM)
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
587
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Firewalls (1st), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (1st)
KerioControl
Ranking in Unified Threat Management (UTM)
10th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
58
Ranking in other categories
Firewalls (28th), Intrusion Detection and Prevention Software (IDPS) (15th)
Zyxel Unified Security Gateway
Ranking in Unified Threat Management (UTM)
13th
Average Rating
6.6
Reviews Sentiment
4.9
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the Unified Threat Management (UTM) category, the mindshare of Fortinet FortiGate is 30.5%, down from 37.8% compared to the previous year. The mindshare of KerioControl is 3.4%, down from 3.6% compared to the previous year. The mindshare of Zyxel Unified Security Gateway is 4.0%, up from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Unified Threat Management (UTM) Mindshare Distribution
ProductMindshare (%)
Fortinet FortiGate30.5%
KerioControl3.4%
Zyxel Unified Security Gateway4.0%
Other62.1%
Unified Threat Management (UTM)
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
Manager, Information Technology Operation/Presales at TechMonarch
A stable solution with an intuitive interface and quick customer service
I have been working with Fortinet FortiGate, WatchGuard, Sophos, and SonicWall. I'm not as comfortable with SonicWall because of their UI and limitations. I prefer Fortinet above all other options. When it comes to configuration, I am confident in my ability to handle various tasks, including creating policies such as firewall rules, web policies, and application policies. Additionally, I can configure VPNs and implement load balancing, among other tasks. Overall, I feel much more comfortable working with Fortinet. Fortinet has made significant improvements by integrating AI with firewalls for threat analysis and prevention. In the past 2-3 years, they have launched FortiSASE and SIEM, and they also provide SOC services. Both Palo Alto and Fortinet FortiGate are excellent. While Fortinet FortiGate comes at higher prices, the functionality and support justify the cost. They promptly resolve firmware issues and inform all support providers about configuration changes.
Constantnos Achilleos - PeerSpot reviewer
Product manger at Asbis Mediteranean
Leveraging geo-tagging and web filtering for enhanced network security
The solution is used for site-to-site VPN connections and it is valued for its cost efficiency and easy connectivity. It is especially beneficial for multi-site VPNs and is used in about fifteen different components KerioControl has provided a financial benefit as it allows purchasing one license…
reviewer2399337 - PeerSpot reviewer
Sales and technical consultant at a manufacturing company with 10,001+ employees
User has benefited from stable performance and effective completion of security tasks
I use it mostly for VPN and for some firewall solutions When considering my main use case with VPN, I can say that I got the Zyxel Unified Security Gateway, and it works fine. However, we are thinking about using a different solution based on open source because Zyxel Unified Security Gateway…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"FortiGate Next Generation Firewall has a stateless balance proposition"
"Provides good firewall security and has great VPN features."
"The product is so stable I don't need to have a cluster."
"There are great templates, so you don't have to customize them if you don't want to. You do have the option to custom create some folders and some reports, however, with what is there, you don't really need to go through extra effort, as they already give you a lot of predefined views of reports and so forth."
"The performance is very good and the solution is simple to manage."
"The most valuable feature is the interface, which is very user friendly. We are utilizing most of the features, like content filtering. The firewall is powerful."
"We are a visual effects company, and there have been a number of high profile security issues in our industry. This has brought us to a higher standard of security, which our clients are very keen on these days."
"The overall features of Fortinet FortiGate SWG are good."
"The most valuable features include geo-tagging, which blocks all other IPs except for the specified accounts, and web filtering."
"Kerio has improved my organization's security."
"The firewall and intrusion detection features are good. It has blocked certain things. We have a lot of blocked sites that the staff or anyone using it, the public, etc., can't go on. It works for that. I get quite a few messages every now and again, saying that a virus has been detected and I can go in and block the user who's causing the problem."
"I haven't found another product that is able to do the things that Kerio Control can do for the money."
"The top features are ones that we're not using yet but we soon will be because we've just had broadband upgraded in Australia. We've got something called the National Broadband Network, which is forced onto you, so you have to take it when it arrives. We'll be trying the high availability out soon. We tried that with some load balancing, it didn't quite work as we expected, but I think that was more of a configuration thing rather than a product thing."
"The firewall appliance itself is the most valuable feature."
"Kerio has improved my organization's security."
"The solution is easy to manage. Kerio Control is unique compared to other firewalls because it has been around since 2000 when we switched and the name it started with was WinRoute, and then later became Kerio Control. It evolved over time and it is more of a proprietary firewall on its own and has been developed through open source."
"This is a capable appliance and the standard features work well for us."
"The solution can scale well."
"The Zyxel Unified Security Gateway solution is stable and does its job effectively."
"This is a capable appliance and the standard features work well for us."
"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."
 

Cons

"One area for improvement involves FortiAnalyzer, specifically regarding the SOC part and log interpretation. Sometimes interpretation is very difficult."
"From a reporting perspective, there's room for improvement. They're providing FortiAnalyzer through which one can get some enhancements, but the visibility and reporting still need slight improvement."
"Fortinet FortiGate is a firewall solution and once it's deployed, you can rest assured that your system is secure."
"FortiGate support could do some improvements on their IPv6 configuration. Right now it's still in the very early stage for utilizing in an enterprise level network environment."
"The price of FortiGate should be reduced because there are some other leading products that are cheaper."
"FortiGate's reporting features could provide a better picture of what is happening in the box."
"It should be more stable."
"The reporting was limited."
"Support responses need improvement."
"Kerio Control has just improved on their biggest problem, which was to introduce better support for high-availability requirements in production."
"Their support is getting better but still needs improvement."
"I would like to see a little improvement in their technical support when you have a problem."
"One of the problems we do have causes problems with the VPN. The software slows the throughput down too much."
"Filtering of pages and greater personalization in services need improvement."
"It's too expensive. The license, in the last year or so, has gone up by over £100."
"The filtering on the unlicensed version of Kerio Control is inefficient - you have to add each website manually, which isn't feasible."
"Although manageable, the user interface is a little bit slow and could be improved. The advanced UI allows me to do whatever I want, but this is where the issue of speed exists."
"Sometimes it reboots when you least expect it, and that's the main issue."
"The product has some scalability and data management issues where improvements are required."
"Although manageable, the user interface is a little bit slow and could be improved."
 

Pricing and Cost Advice

"The license is yearly. We pay for the top end. It's called 360."
"The pricing for this solution is good."
"If you purchase a one-year subscription with the hardware and then you want to renew for the second year, it is very costly."
"I had to pay for the license for the firewall, but it is guaranteed to have updates. I expect a good service for it. It was about €1000 for a year, and there was no additional cost."
"Its price is normal. If I compare it with other vendors, such as Palo Alto, it's normal. Palo Alto is expensive."
"Before choosing a piece of equipment you have to take into account the cost-benefit offered by each one. Sometimes it is not worth paying a very cheap price to have a minimum level of security."
"The pricing of the solution is very competitive."
"Fortinet FortiGate is expensive."
"It gives us a lot. It does prove to be a very robust product for the cost."
"Pricing is good, but the licensing took a lot of time."
"It's pretty expensive in licensing costs, especially if you use the product longer than one or two years. The licensing costs are still high, which I don't think is reasonable for a product like this."
"It's too expensive. The license, in the last year or so, has gone up by over a £100. We're almost being out-priced by the annual license at the minute."
"Search and compare."
"We have to pay approximately EUR 175 for the product."
"My advice is to use your own hardware, and do not use theirs."
"Its price is fair. There are no additional costs."
"The price of Zyxel Unified Security Gateway is good compared to other similar products in the market."
"This gateway is pretty cheap."
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Comms Service Provider
10%
Manufacturing Company
8%
Financial Services Firm
6%
Computer Software Company
18%
Comms Service Provider
9%
Manufacturing Company
7%
Media Company
6%
Comms Service Provider
22%
Computer Software Company
9%
Outsourcing Company
8%
Non Profit
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business360
Midsize Enterprise135
Large Enterprise190
By reviewers
Company SizeCount
Small Business44
Midsize Enterprise9
Large Enterprise3
No data available
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
When you compare these firewalls you can identify them with different features, advantages, practices and usage a...
What is the biggest difference between Sophos XG and FortiGate?
From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...
What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?
As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...
What is your experience regarding pricing and costs for KerioControl?
KerioControl offers good pricing as one license covers all features needed without extra payment. The price for the p...
What needs improvement with KerioControl?
Regarding KerioControl's application awareness and control feature, I have not used it much.
What is your primary use case for KerioControl?
With KerioControl, we usually use them for site-to-site VPNs for most of our clients. With multiple offices, we use K...
What do you like most about Zyxel Unified Security Gateway?
The most valuable features of the solution stem from web filtering, malware protection, and antivirus.
What is your experience regarding pricing and costs for Zyxel Unified Security Gateway?
I cannot definitively comment on whether Zyxel Unified Security Gateway is an affordable product as I haven't done co...
What needs improvement with Zyxel Unified Security Gateway?
The integration capability is quite challenging. The system is very complicated, and many features are hidden. I'm lo...
 

Also Known As

Fortinet FortiGate Next-Generation Firewall
No data available
No data available
 

Overview

 

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya
Triton Technical, McDonald's
Information Not Available
Find out what your peers are saying about KerioControl vs. Zyxel Unified Security Gateway and other solutions. Updated: March 2026.
884,976 professionals have used our research since 2012.