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F5 BIG-IP Local Traffic Manager (LTM) vs Fortinet FortiWeb vs Imperva Application Security Platform 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:
 

ROI

Sentiment score
6.6
Many companies found F5 BIG-IP LTM beneficial for security and deployment, with mixed views on ROI depending on pricing.
Sentiment score
6.5
Fortinet FortiWeb offers cost-effective security, reducing expenses by up to 80%, enhancing reliability, and mitigating cyber threats.
Sentiment score
6.0
Imperva Application Security Platform offers substantial ROI for frequent attack targets, aiding compliance and cost-efficient protection.
The major return on investment is the security of our data.
IT Manager at Chong Hua Hospital
They know how much money they are losing while the system is down, so by increasing the possibility of not having a down website or web application, return on investment can be calculated easily.
Head of Sales Services Department at a comms service provider with 51-200 employees
Regarding return on investment, ROI, I can say it is noticeable with Imperva Application Security Platform.
Senior Presales Consultant at Techlab security
 

Customer Service

Sentiment score
6.7
F5 BIG-IP LTM support experiences vary, with mixed reviews on responsiveness, knowledge, community resources, and regional support efficacy.
Sentiment score
6.6
Fortinet FortiWeb's support is responsive and competent, though users note room for improvement in expertise and response times.
Sentiment score
6.9
Imperva's customer service is responsive and helpful, though some experience delays and require escalation for complex issues.
I would rate the technical support of F5 BIG-IP Local Traffic Manager (LTM) nine out of ten.
IT Manager at Chong Hua Hospital
Overall, my experience with F5 is very good compared to Radware.
Project Manager at IBM
Customer support is quite good but could be faster.
Network Engineer at Stryker
Their support is truly exceptional when I compare it with similar large-sized companies.
Global Channel Alliances Lead at a tech vendor with 10,001+ employees
The expertise of engineers varies across different time zones, affecting the effectiveness of the support provided, especially during our daytime.
Chief Technology Officer at Future Point Technologies
The back-end development team is available, and if any issue arises, they will help us immediately by providing solutions when contacted.
Technical Support Engineer at Intimesolutions
I would rate the technical support of Imperva DDoS as ten.
Head of Sales Services Department at a comms service provider with 51-200 employees
The response is satisfactory, though the gaps in enablement and lab sessions are clear.
CTO at Malam Engineering PLC
My experience with technical support from Imperva Application Security Platform was good when I reached out to them.
Senior Presales Consultant at Techlab security
 

Scalability Issues

Sentiment score
7.4
F5 BIG-IP LTM offers scalable integration with AWS, suitable for enterprises, but requires careful sizing to avoid constraints.
Sentiment score
7.1
Fortinet FortiWeb is scalable but limited in hardware upgrades; virtual machines offer more adaptability for various needs.
Sentiment score
7.6
Imperva is praised for scalability in cloud environments, though infrastructure compatibility and license costs may pose challenges.
You can add additional boxes that combine together to achieve a bigger throughput for investigation and research.
Security Team Lead at a outsourcing company with 1,001-5,000 employees
99% of customers are using the cloud version of Imperva DDoS protection, so they just purchase the new license and scale as needed.
Head of Sales Services Department at a comms service provider with 51-200 employees
I have not even needed support after deployment, since it has remained stable.
CTO at Malam Engineering PLC
 

Stability Issues

Sentiment score
8.0
F5 BIG-IP LTM is stable and reliable, with occasional bugs manageable through updates, supported by responsive customer service.
Sentiment score
7.9
Fortinet FortiWeb is generally reliable, with minimal stability issues, although some users face occasional configuration or version challenges.
Sentiment score
7.9
Imperva Application Security Platform is stable and reliable, with minimal downtime and quick resolution of occasional issues.
We have not faced any significant issues during deployments.
Chief Technology Officer at Future Point Technologies
It is also a stable product without much glitch or downtime.
Senior Presales Consultant at Techlab security
One notable drawback is that, unlike Fortinet, which offers fast track labs and continuous enablement, Imperva Application Security Platform lacks lab access and fast track labs for enablement and product advertising.
CTO at Malam Engineering PLC
The stability of Imperva DDoS is very good, as it seems they have a lot of servers around the world.
Head of Sales Services Department at a comms service provider with 51-200 employees
 

Room For Improvement

F5 BIG-IP LTM needs better cost-effectiveness, user interface, cloud integration, documentation, security, automation, and a flexible licensing model.
Fortinet FortiWeb needs improvements in upgrades, support, threat intelligence, user interface, cloud integration, reporting, stability, and load balancing.
Users seek improved UI, lower pricing, enhanced features, better support, and integrations in Imperva Application Security Platform.
I expect faster resolutions when providing contact numbers while raising cases, as other companies typically do.
Network Engineer at Stryker
The pricing of F5 BIG-IP Local Traffic Manager (LTM) is on the higher side compared to competitors, but it is worth it.
Project Manager at IBM
If the GUI includes notifications and improved logging capabilities that allow us to see traffic and store logs for six months, that would be very helpful.
Technical Support Engineer at Intimesolutions
Fine-tuning is a room for improvement in Fortinet FortiWeb.
Joint Director at PAA
After the customer submits a specific question and requests troubleshooting help from Fortinet support, it takes at least three to five days to provide a proper answer.
Security Team Lead at a outsourcing company with 1,001-5,000 employees
To convince my clients, a purely on-prem solution would be ideal since they are financial institutions.
CTO at Malam Engineering PLC
Maybe Imperva DDoS could use endpoints to get information about the attacks before they commence from the endpoint level or establish cooperation with endpoint vendors to share this information.
Head of Sales Services Department at a comms service provider with 51-200 employees
Regarding return on investment, ROI, I can say it is noticeable with Imperva Application Security Platform.
Senior Presales Consultant at Techlab security
 

Setup Cost

F5 BIG-IP LTM is feature-rich but costly, especially in AWS; consult F5 for tailored licensing options.
Fortinet FortiWeb provides flexible pricing and licensing, appealing to enterprises for cost-effectiveness despite some users noting variable costs.
Imperva's pricing varies by features and deployment, often seen as complex and costly, impacting adoption in sensitive markets.
For VM machines, the price increases based on CPU configurations of 2, 4, or 8 CPUs.
Presales Engineer at SAUDI PARAMOUNT COMPUTER SYSTEMS
Most security products charge less at the time of purchase because of competition, but when we go to renewals, the prices become very high.
Joint Director at PAA
Fortinet FortiWeb is cost-effective compared to solutions like F5.
Chief Technology Officer at Future Point Technologies
I would rate the pricing of Imperva DDoS as five, where one is very cheap and ten is very expensive.
Head of Sales Services Department at a comms service provider with 51-200 employees
 

Valuable Features

F5 BIG-IP LTM excels in load balancing, security, and customization, enhancing performance and reliability for complex network environments.
Fortinet FortiWeb provides advanced security features and seamless integration, offering cost-effective, robust protection and easy deployment for enterprises.
Imperva offers comprehensive web threat protection with an intuitive interface, advanced analytics, and seamless integration for simplified application security.
The impact of SSL offloading on reducing server load and latency is very much positive because whatever traffic we receive, we encrypt at our F5 BIG-IP Local Traffic Manager (LTM) level, which has definitely reduced the additional load and SSL decryption load on the servers, so it has very much helped us and it is very smooth; it will not take much time and will not impact our regular traffic.
Project Manager at IBM
R-series has better CPU and memory, leading to higher throughput with minimal downtime, making it a significant improvement over the I-series.
Network Engineer at Stryker
One of the most beneficial features of F5 BIG-IP Local Traffic Manager (LTM) is its ability to identify compromised traffic and its capabilities in authentication.
IT Manager at Chong Hua Hospital
Fortinet FortiWeb has positively impacted my organization because most of our servers and applications are secure from hackers and other security threats.
Joint Director at PAA
Fortinet's pricing is way more competitive than Cisco or Palo Alto.
Global Channel Alliances Lead at a tech vendor with 10,001+ employees
The machine learning-based threat detection is significant, as it uses a learning method that eases the configuration burden, making it very useful.
Chief Technology Officer at Future Point Technologies
I have utilized Imperva's Intelligent Traffic Filtering feature. This feature helps me understand how the attack is progressing and what is happening inside the requests to our website.
Head of Sales Services Department at a comms service provider with 51-200 employees
I believe the reputational analysis in Imperva Application Security Platform is effective for blocking security threats before impact.
Senior Presales Consultant at Techlab security
The main drawback for signature-based approaches happens when there is a new zero-day attack that is not in the database.
CTO at Malam Engineering PLC
 

Mindshare comparison

Application Delivery Controllers (ADC) Mindshare Distribution
ProductMindshare (%)
F5 BIG-IP Local Traffic Manager (LTM)14.3%
NetScaler12.7%
Fortinet FortiADC9.7%
Other63.3%
Application Delivery Controllers (ADC)
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
Fortinet FortiWeb7.5%
Imperva Application Security Platform8.1%
F5 Advanced WAF7.1%
Other77.3%
Web Application Firewall (WAF)
Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
ProductMindshare (%)
Imperva Application Security Platform8.5%
Cloudflare16.2%
Arbor DDoS8.7%
Other66.6%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

edshyaa - PeerSpot reviewer
Network Engineer at Stryker
Load balancing has improved traffic distribution and currently supports high availability upgrades
F5 BIG-IP Local Traffic Manager (LTM) offers effective load balancing methods that help distribute traffic across our servers, whether we have two or several. This load balancing feature stands out as it is the fundamental work we do with F5 BIG-IP Local Traffic Manager (LTM). While I recognize there are many features, such as iRules, which I have not explored yet, we primarily work on VIPs, pool members, and traffic distribution. The load balancing algorithms' flexibility makes them very useful for our team, enabling us to choose different servers and manage load effectively. We use various methods based on user or application requirements, making the algorithms set up by F5 in the backend quite helpful. F5 BIG-IP Local Traffic Manager (LTM) positively impacts our organization primarily through its load balancing capabilities. We avoid traffic overload on individual servers by placing backend servers behind F5 BIG-IP Local Traffic Manager (LTM) VIP. This load balancing helps us manage traffic effectively. Since the configuration of the I-series, we have had smooth performance, and with the recent migration to the R-series, it is working faster than before, providing positive outcomes for our operations. Since moving to the R-series, I notice improved performance; it is user-friendly and handles traffic efficiently. The upgrading process is different as we create tenants and a main host. R-series has better CPU and memory, leading to higher throughput with minimal downtime, making it a significant improvement over the I-series.
HameedAhmed - PeerSpot reviewer
Joint Director at PAA
Security threats have been reduced through seamless deployment and strong integration with other tools
I have used Fortinet FortiWeb's integration features. We have easily integrated all of the applications with the product. Most of the applications we are using are in-house built. My technical team is looking after the best features. I have not used it extensively for maybe two and a half years. I have been involved in the installation, but I am not actually using the product. I work with it from time to time but not extensively. I would assess Fortinet FortiWeb's adaptive machine learning and artificial intelligence as having new patches installed regarding artificial intelligence, but when we bought it, I think the learning feature was there. Now they have installed artificial intelligence features through patches. We have a complete portfolio of Fortinet in our organization, including FortiMail, Fortinet FortiWeb, and FortiGate, along with multi-factor authentication. All of the products are from Fortinet. Fortinet tools integrate with each other and work in conjunction. I think Fortinet FortiWeb has helped us meet regulatory compliance because we are not a regulatory organization, but our sister organization is regulatory. We have regulatory compliance with the International Civil Aviation Authority, whose audit teams have checked our data center and these security products, and they are satisfied with us. The question about leveraging Fortinet FortiWeb's automated policy management does not pertain to my domain because I am not so technical, but I am in a management role now. My engineer is more technical than me. I would rate this product an eight point five out of ten.
reviewer1247523 - PeerSpot reviewer
Head of Sales Services Department at a comms service provider with 51-200 employees
Solution ensures website availability and proactive threat mitigation
Over the seven years, the most valuable features of Imperva DDoS that I have found are related to DDoS attacks, which are a group of attacks, and not all of them can be resolved on the endpoint level before the website. Using the web firewall before the website is a common use case to protect against malicious requests to the website. I have utilized Imperva's Intelligent Traffic Filtering feature. This feature helps me understand how the attack is progressing and what is happening inside the requests to our website. It allows me to granularly grant or deny access to certain parts of our website. This helps when we know our customers and the types of requests that can be sent from them, enabling us to block some malicious requests. Imperva DDoS has User Behavior Analytics and Threat Intelligence on its board, and this helps us to be protected proactively. Imperva DDoS connects to its database of threats, storing whole information about attacks all over the world in one simple engine. Everyone can use this feature, which can connect to this engine and get information about what is going on at the world level. That is the way to be protected at the company's level. The integration capabilities of Imperva DDoS are very easy and simple. We can run it in 2 hours.
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
Computer Software Company
8%
Government
8%
Comms Service Provider
7%
Manufacturing Company
9%
Computer Software Company
8%
Financial Services Firm
8%
Comms Service Provider
7%
Financial Services Firm
11%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise32
Large Enterprise86
By reviewers
Company SizeCount
Small Business60
Midsize Enterprise27
Large Enterprise36
By reviewers
Company SizeCount
Small Business84
Midsize Enterprise25
Large Enterprise62
 

Questions from the Community

What needs improvement with F5 BIG-IP?
F5 BIG-IP Local Traffic Manager (LTM) could improve file upload speeds when opening cases and attaching files; someti...
What is your primary use case for F5 BIG-IP?
My main use case for F5 BIG-IP Local Traffic Manager (LTM) is placing our applications on F5 and the backend servers ...
What do you like most about Fortinet FortiWeb?
The WAF profiles has been effective at mitigating web-based threats.
What is your experience regarding pricing and costs for Fortinet FortiWeb?
The pricing for Fortinet FortiWeb varies with different models having different prices. It depends on the requirement...
What needs improvement with Fortinet FortiWeb?
There is room for improvement in Fortinet FortiWeb. The team was only from FortiGate itself. They are making new firm...
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...
What is your experience regarding pricing and costs for Imperva DDoS?
The pricing, setup costs, and licensing of Imperva DDoS are reasonable for the amount of technical capabilities provi...
What needs improvement with Imperva DDoS?
I would like to see improvements in the pooling of threats and attacks, possibly to enlarge the scale of indicators o...
 

Also Known As

F5 BIG-IP, BIG-IP LTM, F5 ASM, Viprion, F5 BIG-IP Virtual Edition , Crescendo Networks Application Delivery Controller, BIG IP
FortiWeb Web Application Firewall (WAF)
Imperva Bot Management, Imperva Web Application Firewall, Imperva API Security
 

Overview

 

Sample Customers

Riken, TransUnion, Tepco Systems Administration, Daejeon University, G&T Bank, Danamon, CyberAgent Inc.
Lush, Barnabas Health, Options, Riverside Healthcare, Hillsbourough County Schools, Columbia Public Schools, Schiller AG
Hitachi, BNZ, Bitstamp, Moz, InnoGames, BTCChina, Wix, LivePerson, Zillow and more.
Find out what your peers are saying about F5, NetScaler, HAProxy and others in Application Delivery Controllers (ADC). Updated: March 2026.
885,728 professionals have used our research since 2012.