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F5 BIG-IP Local Traffic Manager (LTM) vs Fortinet FortiADC vs Imperva Web Application Firewall comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

Mindshare comparison

Application Delivery Controllers (ADC)
Application Delivery Controllers (ADC)
Web Application Firewall (WAF)
 

Featured Reviews

Bonieber  Orofeo - PeerSpot reviewer
Identifying compromised traffic and securing data has been a significant advantage
One of the most beneficial features of F5 BIG-IP Local Traffic Manager (LTM) ( /products/f5-big-ip-local-traffic-manager-ltm-reviews ) is its ability to identify compromised traffic and its capabilities in authentication. Additionally, the security aspect of it provides a significant advantage as it helps us secure our data, which is a major investment and benefit for us. Before using this system, we had difficulties in storing our data and managing the traffic that comes in and out.
OusaidAbaz - PeerSpot reviewer
Integrates load balancing efficiently within existing technology environments
FortiADC provides load-balancing capabilities needed for integration with other Fortinet platforms. It allows for the creation of virtual IPs and applying various algorithms for traffic management. Although it offers fewer algorithms than competing platforms like F5, its capability to manage load balancing makes it valuable. The security features depend on the environment, relying on firewalls like FortiGate.
Mitesh D Patel - PeerSpot reviewer
Effectively defends against threats like cross-site scripting (XSS), SQL injection, and others
It does bring value. For example, consider a BFSI customer. Their application is critical and represents their brand. Without a WAF, an attack could take their application down, harming their reputation. It leads to hampering the customer's workflow. With an Imperva WAF, they protect against attacks like DDoS or SQL injection, ensuring their application remains available and customers are happy. That's the main benefit for both the customer and the organization. The impact depends on the customer's use case. If their business primarily operates online, a CDN is beneficial for traffic optimization. Moreover, the integration options depend on the specific use case of our customers. Generally, integration capabilities are good with SIEM (Security Information and Event Management) parts.

Quotes from Members

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

Pros

"F5 BIG-IP is used with good applications and functions as an application firewall with additional features. We will not use any feature or any service unless there is a business case and there is a need for implementation."
"The most valuable feature is the proxy."
"It can determine if the system is going down, then route the traffic somewhere else."
"It is stable."
"I have never faced any stability issues with F5 BIG-IP Local Traffic Manager (LTM)."
"The most valuable features of the solution are in the area of DDoS and WAF."
"It is very intuitive, easy to deploy, and manage."
"It supports APIs and virtual additions for cloud and VMware."
"It's a good product because it supports all the features that ADC solutions in the market can support, like F5 solutions, for example, such as the LTM of F5."
"Ease of use in deploying and having it up and running requires minimal knowledge."
"FortiADC provides load-balancing capabilities needed for integration with other Fortinet platforms."
"Because ADC is the intermediary between the servers and the end-user application, it gives thorough information about the traffic, what the problem is."
"Although FortiADC has multiple features that I like, the global DNS is the most helpful. It is primarily useful for customers with huge environments and at least two data centers. FortiADC can act as your DNS server. It can check which data center has the lowest latency, and route traffic to that one. It's an intelligent DNS."
"The GSLB, the DR side, is the best part. Because we had our main side in one city, we created another, and we had a complete MPLS over the internet. We used the GSLB and data loss for our business applications."
"I am impressed with the product's load-balancing feature."
"TSL and SSL offloading are both very good features."
"The solution can be configured in just a couple of minutes."
"Data masking is the most valuable feature of this solution."
"Imperva Web Application Firewall is stable."
"Imperva Web Application Firewall is a highly stable solution and is very mature."
"The solution integrates seamlessly with other tools and has a good alert mechanism."
"The most valuable feature of Imperva, in addition to its strong knowledge base, is its effective protection for web applications."
"I have had a positive experience with Imperva Web Application Firewall's tech support so far. They are knowledgeable and respond on time."
"Learning mode and custom policies are helpful features."
 

Cons

"Its scalability and deployment should be better. It should be more scalable, and it should be easier to deploy."
"I would like them to have more flexible models."
"The license terms for "non-commercial" will be a challenge for us."
"I used GitHub for autoscaling CloudFormation, and I found two bugs and I submitted them. Their implementation in GitHub could be cleaner and allow for a bit more customization."
"The pricing could always be better. It's a bit expensive."
"The pricing of the product is a bit too high."
"The product is expensive."
"In the LTM solution, it would be beneficial to have more algorithms for traffic segmentation or the ability to create user-defined algorithms rather than being restricted to predefined ones."
"The user interface could be more friendly and CLI could be more like that of Fortigate."
"The solution should improve finding false positives and false negatives. There are a lot of false positives."
"There is a mismatch between the number of features they are offering and the device capacity on how much it can handle."
"The configuration is relatively complex."
"Issues with SSL and encrypted traffic."
"If I need design help, they do not assist; they say it is a design issue they cannot support, and I must approach the system integrator."
"Technical support and documentation could both be improved."
"Because it is so generic, the documentation requires special attention. A person who has not worked on Fortinet FortiADC or a similar product will struggle to understand what the document is trying to say. The documentation could be more specific, and more detailed."
"Imperva Web Application Firewall could improve the API integration. It was complex for us. Additionally, The onboarding could be better."
"Imperva Web Application Firewall can improve by adding more features to the dashboard. increasing the visibility of the real-time events, besides configuring the administration itself."
"The solution works for particular zones but isn't always the best solution for all zones."
"One potential improvement for Imperva is enhancing its alert system."
"They recently separated the WAF and the DAM management gateways in order for each of these to be managed from different areas, so I believe it now requires additional investments for what was previously a single complete solution."
"It would be nice to have more security control over mobile applications so I would suggest adding more mobile security features. It would also be beneficial to see improvements in regards to interface bandwidth performance, CPU time, and RAM size. Learning capability of the device is quite weak."
"They can provide an option to create reports, automatically import the entire report, and create rules again. In a real-life crisis, it would be helpful to be able to import a report and generate security rules from that report. I should be able to create a simple query and import the reports automatically. It can maybe also tell us the format of the report."
"I loved the approach of the cloud. The cloud has a lot of new features, like advanced web protection and DDoS protection. If those could also be on-boarded onto the on-prem versions, that would be ideal. They need to pay attention to both deployment options and not just favor one."
 

Pricing and Cost Advice

"F5 pricing is too high, compared to Citrix."
"This is a high-priced tool. We pay for its license yearly."
"BIG-IP LTM is considered a premium product, so it's quite expensive and isn't affordable for all customers."
"It is cheaper than the average on the market."
"Purchasing through the AWS Marketplace was very simple. The main reason that we went this way was the simplicity of buying it there. It is maintained and upgraded for us, and this makes it easy to stay current."
"I found F5 BIG-IP Local Traffic Manager (LTM) an expensive product. The costs would depend on the appliance and infrastructure size. However, my company didn't have to pay extra to use additional features."
"Check other vendors like Cisco, Citrix or A10 Networks. There are plenty in the market with which you can achieve same thing."
"I would recommend that the cost be lowered."
"I believe the price is good. It's fair. There are no extra costs."
"The product has average pricing. I rate its pricing a five out of ten."
"They offer a perpetual license."
"The solution is less expensive than F5 or Imperva and is the most reasonably priced option available."
"The price is competitive"
"Compared to F5, FortiADC pricing is better."
"The solution's pricing is an issue and should be improved."
"I rate Fortinet FortiADC's pricing one out of ten. It is fixed."
"We sell three-year licenses for Imperva Web Application Firewall to our customers. The price is a little expensive."
"Imperva’s pricing is a bit higher in the market since it offers a full-blown WAF."
"There is a license for this solution and we purchase the license annually with no additional fees."
"It is very costly, but the return on investment is very high. Its cost was around $70,000, and we got it back in just six months."
"Imperva Web Application Firewall is expensive."
"The price of Imperva Web Application Firewalls is expensive compared to others."
"It is a very affordable solution."
"The price is high compared to other solutions like FortiWeb."
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Top Industries

By visitors reading reviews
Financial Services Firm
16%
Computer Software Company
13%
Government
8%
Manufacturing Company
7%
Computer Software Company
17%
Financial Services Firm
9%
Government
8%
Educational Organization
6%
Financial Services Firm
16%
Computer Software Company
12%
Insurance Company
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What needs improvement with F5 BIG-IP?
The price needs improvement as it is quite costly.
What is your primary use case for F5 BIG-IP?
We're using F5 BIG-IP Local Traffic Manager (LTM) ( /products/f5-big-ip-local-traffic-manager-ltm-reviews ) for our a...
Is Citrix ADC (formerly Netscaler) the best ADC to use and if not why?
For ADC, any ADC can do a good job. But in case if you want to add WAF functionality to the same ADC hardware you hav...
Do you recommend Fortinet FortiADC?
I recommend Fortinet FortiADC. My experience with Fortinet has been very positive. Our company has been using it for ...
What do you like most about Fortinet FortiADC?
The user interface is very easy and integrates with Sandbox easily.
DDoS solutions: Any other solutions to consider aside from Radware DDoS Protection Service and F5 Silverline DDoS Protection?
You can have a look to Imperva Cloud WAF, the anti-DDoS mitigation is under 1s and works very well. I observed a lot ...
Which Web Application Firewall (WAF) would you recommend? R&S or Imperva?
Imperva is a strong choice, given their security focus and ongoing R&D into the product in areas such as bot mana...
 

Also Known As

F5 BIG-IP, BIG-IP LTM, F5 ASM, Viprion, F5 BIG-IP Virtual Edition , Crescendo Networks Application Delivery Controller, BIG IP
FortiADC Application Delivery Controller, FortiADC
No data available
 

Overview

 

Sample Customers

Riken, TransUnion, Tepco Systems Administration, Daejeon University, G&T Bank, Danamon, CyberAgent Inc.
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
BlueCross BlueShield, eHarmony, EMF Broadcasting, GE Healthcare, Metro Bank, The Motley Fool, Siemens
Find out what your peers are saying about NetScaler, F5, Microsoft and others in Application Delivery Controllers (ADC). Updated: June 2025.
862,289 professionals have used our research since 2012.