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F5 BIG-IP DNS vs Sucuri comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 12, 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

F5 BIG-IP DNS
Ranking in Domain Name System (DNS) Security
6th
Average Rating
8.6
Reviews Sentiment
8.0
Number of Reviews
21
Ranking in other categories
No ranking in other categories
Sucuri
Ranking in Domain Name System (DNS) Security
22nd
Average Rating
8.4
Reviews Sentiment
7.5
Number of Reviews
6
Ranking in other categories
Web Application Firewall (WAF) (37th), Distributed Denial-of-Service (DDoS) Protection (26th)
 

Mindshare comparison

As of January 2026, in the Domain Name System (DNS) Security category, the mindshare of F5 BIG-IP DNS is 4.4%, down from 5.3% compared to the previous year. The mindshare of Sucuri is 1.3%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Domain Name System (DNS) Security Market Share Distribution
ProductMarket Share (%)
F5 BIG-IP DNS4.4%
Sucuri1.3%
Other94.3%
Domain Name System (DNS) Security
 

Featured Reviews

reviewer2733993 - PeerSpot reviewer
Solutions Architect at a tech services company with 51-200 employees
Ensures reliable web application security and offers comprehensive load balancing solutions
When it comes to denial of service or DNS security, F5 is not the best vendor as dedicated vendors such as Arbor for denial of service and Infoblox for DNS security offer more comprehensive solutions. The main features such as WAF and load balancing do not generate complaints. F5 BIG-IP DNS is not the best for DNS denial of service because they handle it as part of BIG-IP features, mainly used for GSLB, while other vendors provide complete DDI solutions, including DHCP, DNS, and IP address management, along with specialized DNS security, offering much more than just GSLB and basic recursive DNS security. The two main concerns are DNS related and denial of service, areas where F5 BIG-IP DNS could improve, and they could do better as they are not the best vendor, indicating ample room for improvement especially since those are not their main specialties.
JS
Hardware Engineer at Ministry of Defense
A cost-effective choice for website security and informative support with issues related to CDN quality
One area where they could improve is in providing real-time support options because now you need to open a support ticket and wait for their response. It would greatly benefit customers if they implemented an online chat or messaging system for quicker assistance. I have found their Content Delivery Network service to be lacking in quality, and it could certainly be enhanced to provide better performance. I would also like to see improvements in the deployment process, as it currently takes more time than desirable. Another significant concern is that their service when your website is down, turns it into a static site. This means that if customers try to visit your site during downtime, they will see old content from the static site, which is not ideal. The CDN and tracking services are areas that need improvement, as well as addressing their bandwidth limitations.

Quotes from Members

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

Pros

"The management is very easy."
"F5 BIG-IP DNS is useful, depending on how you use it."
"F5 provides us with a mechanism to accomplish complex product balancing."
"F5 BIG-IP DNS has been rock solid in terms of stability for years."
"For one of our clients, F5 improved global server load balancing with an active-active site configuration for Disaster Recovery."
"F5 BIG-IP DNS is a stable solution."
"It's very stable."
"Stability-wise, I rate the solution a ten out of ten...Stability-wise, I rate the solution a ten out of ten."
"I use it as a WAF, which is basically a web firewall to monitor and block traffic to our web server."
"The initial setup was straightforward. Straight forward because the plugin can simply be installed and then it does its job. It's not complex, there is no learning curve. The online scan is simple, you put in the website address and the scan gives us a report on the browser itself. It's simple to use."
"It significantly eases the workload and streamlines the initial setup required to protect a website."
"Domain name scanning since it allows us to scan all our domain names and determine whether it has malware or if is reported as phishing."
"The initial setup was very easy."
"The most valuable part is the analytics and visualization."
 

Cons

"The analysis services needs improvement."
"I would like to see more marketing documentation, rather than technical documentation."
"The solution can improve by adding cloud integration through plugins or additional configurations so we can use F5 BIG-IP DNS to communicate with the cloud."
"The solution's initial setup is complex compared to Fortinet."
"It would be great to see a F5 BIG-IP DNS cloud version. What we within the Australian government are looking at doing is utilizing a secured DNS service much the same as the English GCHQ version of their protected DNS service."
"The initial setup could be easier."
"The initial setup is a step-by-step process, so it can be a bit complicated for someone who's using it for the first time."
"In the product, one of the shortcomings is related to its configuration part...Though you can find some manuals or F5 documents, in real life, it's very hard to understand this product."
"It would greatly benefit customers if they implemented an online chat or messaging system for quicker assistance."
"Sucuri could provide help for specific security alerts in-line instead of requiring users to search for it in the help section."
"The main improvement I would like to see is support for .NET applications. If they could include this feature, I would include more sites in the protection."
"I would rate this solution an eight out of ten. The reason is that we have found sometimes customers or Google saying that there is something wrong with the website but Sucuri says that the site is clean so we do have to look at the site manually which means that the Sucuri scan does not pick up anything and everything."
"Confident score: Currently it does not have one and there are cases that most websites flagged are false-positives."
"In terms of improvement, the cost factor is always there."
 

Pricing and Cost Advice

"The on-prem version is only available on a yearly license, but the cloud version can be paid for on a day-by-day basis."
"They are competitively priced."
"BIG-IP DNS is more expensive than its competitors like Citrix, but it gives good value for money."
"Cost is a factor. It is really costly."
"This product is quite pricey but if you compare the feature set and its compatibility with similar products on the market, you would understand why it's that price."
"You cannot do much around DDoS protection without an additional license from F5."
"I would rate the pricing a three out of ten, with ten being a low price."
"In some cases, it is expensive."
"The ROI has been very good. Because of the solution, I have a tax break. The site developers were not always experienced people. We used to pay more for cleaning up the site when it was infected. Now, we have peace of mind knowing that the solution will clean up the site and that we won't have to go through the unnecessary process of restoring it from a backup. The protection on the WAF and the measures for backups have also prevented our site from going down."
"It stands out as a more cost-effective option compared to other cloud-based security services like Cloudflare or JetPass."
"Sucuri offers different plans, both the standard plan and an advanced plan. So there are different plans to choose from."
"I’d simply say it’s really worth it."
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
Manufacturing Company
12%
Computer Software Company
11%
Retailer
7%
Comms Service Provider
10%
Computer Software Company
9%
Financial Services Firm
7%
Real Estate/Law Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise4
Large Enterprise9
No data available
 

Questions from the Community

What do you like most about F5 BIG-IP DNS?
For one of our clients, F5 improved global server load balancing with an active-active site configuration for Disaster Recovery.
What is your experience regarding pricing and costs for F5 BIG-IP DNS?
In terms of pricing, F5 BIG-IP is not cheaper compared to other solutions like Fortinet or Citrix. The cost can be high due to its comprehensive modules.
What needs improvement with F5 BIG-IP DNS?
When it comes to denial of service or DNS security, F5 is not the best vendor as dedicated vendors such as Arbor for denial of service and Infoblox for DNS security offer more comprehensive solutio...
Ask a question
Earn 20 points
 

Comparisons

 

Also Known As

F5 BIG-IP DNS, F5 DNS Delivery
No data available
 

Overview

 

Sample Customers

Ricacorp Properties, Bangladesh Post Office, Shawbrook Bank, Shinsegae Internet Duty Free
The Loft Salon, Tom McFarlin, WPBeginner, Taylor Town, Everything Everywhere, Financial Ducks in a Row, Chubstr, Real Advice Gal, Sujan Patel, Wallao, List25, School the World
Find out what your peers are saying about F5 BIG-IP DNS vs. Sucuri and other solutions. Updated: December 2025.
879,425 professionals have used our research since 2012.