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F5 BIG-IP DNS pros and cons

Vendor: F5

4.3 out of 5

21 reviews
100% willing to recommend

Pros & Cons summary

F5 BIG-IP DNS is known for its effective technical support and stability, featuring Global Traffic Manager, high availability, and robust security including DDoS mitigation. However, the scalability, cloud integration, and configuration process are areas needing improvement. Pricing is high, and technical support response time could be faster. While integration with VMware is desired, the product excels in complex traffic distribution, making it a solid choice for tech buyers.

Buyer's Guide

Get pricing advice, tips, use cases and valuable features from real users of this product.

Prominent pros & cons

PROS

F5 BIG-IP DNS offers excellent technical support that provides follow-ups on any issues.

F5 BIG-IP DNS excels in stability, earning high ratings for its reliability over the years.

The Global Traffic Manager feature effectively manages traffic across multiple data centers.

F5 BIG-IP DNS integrates well with existing infrastructure to enhance global server load balancing and develop robust topologies.

F5 BIG-IP DNS is recognized for its high availability, scalability, and strong protection against attacks, including DDoS.

CONS

Scalability is a concern and could be improved.

Cloud integration through plugins or additional configurations is needed to enable F5 BIG-IP DNS to communicate with the cloud.

The initial setup process is complex and challenging for first-time users.

Pricing has room for improvement as it is considered pricey.

F5's technical support responds slowly, and support response time could use improvement.

F5 BIG-IP DNS Pros review quotes

saleseng2185554

- at a computer software company with 51-200 employees

May 22, 2023

Stability-wise, I rate the solution a ten out of ten...Stability-wise, I rate the solution a ten out of ten.

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Raja Waqar Ahmad

Sr. Network Engineer at Tekboox

Oct 30, 2023

The GTM feature is very good, It's very useful, especially if we have multiple data centers. If we want to load balance traffic from multiple data centers, the GTM feature is very useful.

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reviewer2733993

Solutions Architect at a tech services company with 51-200 employees

Aug 11, 2025

F5 BIG-IP DNS stands out as they are number one when it comes to WAF and load balancing technologies, and they have plenty of add-on features such as APM and AFM to handle DDoS attacks, DNS security, and GSLB.

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Sudhanshu Singh

Associate Software Engineer at Tech Mahindra Limited

Jan 23, 2023

The most valuable feature of the solution is security.

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L3 Project Engineer at Inspira Enterprise

Feb 15, 2024

BIG-IP DNS effectively handled a traffic surge. For example, we have application forms replicated across our DCs. If our primary application becomes unavailable, BIG-IP automatically fails over to a client-unaware secondary application.

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Technical Services Manager at ProComm technologies

Oct 4, 2020

F5 technical support is quite good and they follow up if there are any issues.

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Manager Cyber Security at Dept. of the Premier and Cabinet

Jun 28, 2022

F5 BIG-IP DNS has been rock solid in terms of stability for years.

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reviewer2350383

Technical Consultant at a financial services firm with 1-10 employees

Feb 26, 2024

For one of our clients, F5 improved global server load balancing with an active-active site configuration for Disaster Recovery.

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SRI GANESH PHANIYAPPA

Sub Divisional Engineer NOC Bangalore at Bharat Sanchar Nigam Limited

Sep 23, 2022

The security features, DDoS mitigation facilities, and SQL configuration are the most valuable aspects of this solution.

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Network and Security Engineer at CITG

Oct 14, 2024

The main features valued in F5 BIG-IP include high availability, scalability, and protection of applications from attacks.

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F5 BIG-IP DNS Cons review quotes

saleseng2185554

- at a computer software company with 51-200 employees

May 22, 2023

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.

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Raja Waqar Ahmad

Sr. Network Engineer at Tekboox

Oct 30, 2023

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.

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reviewer2733993

Solutions Architect at a tech services company with 51-200 employees

Aug 11, 2025

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.

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Free Report: F5 BIG-IP DNS Reviews and More

Learn what your peers think about F5 BIG-IP DNS. Get advice and tips from experienced pros sharing their opinions. Updated: August 2025.

866,218 professionals have used our research since 2012.

Sudhanshu Singh

Associate Software Engineer at Tech Mahindra Limited

Jan 23, 2023

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.

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L3 Project Engineer at Inspira Enterprise

Feb 15, 2024

The monitoring capabilities of F5 BIG-IP DNS could be improved.

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Technical Services Manager at ProComm technologies

Oct 4, 2020

I would like to see deeper integration with VMware in the sense that F5 compliments VMware, in the context of application availability.

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Manager Cyber Security at Dept. of the Premier and Cabinet

Jun 28, 2022

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.

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reviewer2350383

Technical Consultant at a financial services firm with 1-10 employees

Feb 26, 2024

The IP intelligent services are good for mitigating threats, but there are also false positives. So, it's not a standalone solution that can cover everything.

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SRI GANESH PHANIYAPPA

Sub Divisional Engineer NOC Bangalore at Bharat Sanchar Nigam Limited

Sep 23, 2022

CNC (control and command) communication would be beneficial. We would like to have control and command blocking to prevent visiting malicious websites.

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Network and Security Engineer at CITG

Oct 14, 2024

The support response time could use improvement.

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Show 10 more reviews (out of 21)

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