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Imperva Application Security Platform vs Microsoft Azure Application Gateway comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 22, 2026

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
7.6
Cloudflare WAF offers quick ROI, crucial protection for e-commerce, saves bandwidth, and balances cost with valuable free features.
Sentiment score
6.0
Imperva enhances security, reduces costs, prevents downtime, and offers high ROI, compliance benefits, and traffic optimization for public portals.
Sentiment score
6.1
Microsoft Azure Application Gateway enhances ROI by reducing infrastructure costs, simplifying setup, and using cost management tools for accurate assessments.
My experience with the pricing or licensing of Cloudflare Web Application Firewall is that many features can be accessed for free, so the pricing is definitely reasonable.
Owner at Hga consulting
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
I was able to save over seven million dollars last year as return on investment in the company.
Senior Cybersecurity Consultant at Cyberoutcome Limited
I have seen a return on investment with Imperva Application Security Platform, as it is generally associated with time savings, because the review of alerts and the visibility it gives saves us significant operational time.
Ingeniero Preventa at Imperia
Microsoft Azure Application Gateway significantly impacts our cost savings while maintaining higher performance.
IT Manager at Chong Hua Hospital
If we can use a shared resource, then the return on investment is really nice.
Cloud Specialist at a tech services company with 10,001+ employees
We have seen a return on investment in terms of time-saving and cost-saving by not creating our own infrastructure.
Information Security and Compliance Officer at Carnation
 

Customer Service

Sentiment score
6.3
Cloudflare WAF support is mixed; responsive for some, but Indian customers face call availability and administrative issues.
Sentiment score
7.0
Imperva's customer service is praised for effectiveness and professionalism, though improvements in initial support and response times are suggested.
Sentiment score
6.4
Microsoft Azure Application Gateway support experiences vary; some praise expertise, while others criticize delays and inconsistent quality.
I would rate the technical support with Cloudflare as excellent every time I've had to contact them.
Owner at Hga consulting
The technical support of Cloudflare Web Application Firewall rates between five and seven at maximum.
IT Manager at Amla Commerce
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
They need to work faster on the response time because of issues of urgent replies.
Senior Cybersecurity Consultant at Cyberoutcome Limited
Responsive support addressing urgent needs.
Cybersecurity Consultant at Accenture Singapore Services Pte Ltd
I would say they provide the best support for Application Gateway because they own the product, so their support is top-notch.
Cloud Specialist at a tech services company with 10,001+ employees
There is room for improvement, specifically in paid support, by providing more direct contact.
Information Security and Compliance Officer at Carnation
I would rate Microsoft support as good because they have a very skilled technical support team in the background
Cloud Head at White-Spunner & Associates
 

Scalability Issues

Sentiment score
7.7
Cloudflare Web Application Firewall offers impressive scalability and automated management, but additional features may incur costs for smaller organizations.
Sentiment score
7.5
Imperva excels in scalable security with efficient traffic handling, though custom SSL costs and on-premise expansion present challenges.
Sentiment score
7.4
Microsoft Azure Application Gateway provides scalable solutions but has mixed reviews regarding cost and ease of scaling and upgrades.
The scalability of Cloudflare Web Application Firewall rates between 8 to 9, as it depends upon the use cases and what exactly the client needs.
IT Manager at Amla Commerce
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
It is easy to always scale to add more users.
Senior Cybersecurity Consultant at Cyberoutcome Limited
Microsoft Azure Application Gateway is a very scalable product.
IT Manager at Chong Hua Hospital
It has the autoscaling feature, so there is not much concern around performance; it can scale significantly.
Cloud Specialist at a tech services company with 10,001+ employees
Microsoft Azure Application Gateway is a scalable solution.
Cloud Head at White-Spunner & Associates
 

Stability Issues

Sentiment score
8.2
Cloudflare Web Application Firewall is praised for stability, high performance, effective protection, daily use, and minimal downtime.
Sentiment score
7.9
Imperva Application Security Platform is praised for its stability, reliability, and robust performance, with high customer ratings.
Sentiment score
7.6
Microsoft Azure Application Gateway is stable and reliable, with high ratings, despite occasional issues due to misconfiguration.
The stability of Cloudflare Web Application Firewall deserves a perfect 10 out of 10.
IT Manager at Amla Commerce
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
We have been using it for the past two to three years, and there have been good results with no problems so far.
Cloud Specialist at a tech services company with 10,001+ employees
The stability is good, and except for a few instances, I don't see the non-availability of Azure Cloud services.
Cloud Head at White-Spunner & Associates
 

Room For Improvement

Cloudflare WAF needs feature enhancements, better usability, improved support, advanced DDoS protection, and solutions for latency and alerts.
Imperva needs improved AI, integration, pricing, user interface, licensing, and bot protection to enhance security features and customer experience.
Microsoft Azure Application Gateway is criticized for high costs, complexity, lacking documentation, and needing improvements in security, scalability, and support.
The product can improve by having more multitenancy capability, which is currently not available.
Network Architect at a computer software company with 11-50 employees
I think they're doing a good job with DNS and as support for any domains that I create or that my clients create, it's mandatory for me to ensure they have Cloudflare as their DNS provider.
Owner at Hga consulting
And maybe something similar to Pushpin that Fastly has, which is an option where you can push messages that then can be scaled globally over the network.
CTO at PlayNirvana
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
One feature I mentioned is the support for non-HTTPS protocols such as TCP, which could allow one endpoint for all kinds of protocols.
Cloud Specialist at a tech services company with 10,001+ employees
There is room for improvement in terms of support, such as assigning agents directly for more straightforward engagement.
Information Security and Compliance Officer at Carnation
In future releases of Microsoft Azure Application Gateway, I would like to see more AI functionalities and a better dashboard as well as some customizations.
IT Manager at Chong Hua Hospital
 

Setup Cost

Cloudflare Web Application Firewall offers affordable, flexible pricing with no upfront costs, noted for competitiveness and included support services.
Imperva's pricing is complex and costly, with significant expenses, especially affecting smaller enterprises, despite some competitive options.
Microsoft Azure Application Gateway's cost is debated; appreciated for scalability but potentially expensive with additional fees compared to AWS.
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
the setup cost was high, with the hardware installation in the data center being particularly expensive.
Cyber Security Product Owner at a energy/utilities company with 10,001+ employees
We have noticed faster response times and fewer security alerts because after doing some custom policy tuning, everything seemed to be aligned and we have fewer attacks to monitor and fewer alerts to monitor.
Senior Cybersecurity Consultant at Cyberoutcome Limited
We would prefer to have it cheaper, but it is still expensive.
Cloud Specialist at a tech services company with 10,001+ employees
Azure solutions are quite expensive.
Information Security and Compliance Officer at Carnation
When it comes to pricing for Microsoft Azure Application Gateway, I would rate it a seven out of ten.
IT Manager at Chong Hua Hospital
 

Valuable Features

Cloudflare Web Application Firewall provides comprehensive security features, easy setup, scalability, and competitive pricing with praised performance and stability.
Imperva Application Security Platform offers effective threat mitigation, real-time intelligence, and robust API security, enhancing compliance and reducing vulnerabilities.
Microsoft Azure Application Gateway provides secure, efficient traffic management with integration, automation, and scalability benefits for straightforward application deployment.
The custom rules and the geo-redundant geographical rule feature, which allows me to implement geographical rules for customers, add significant value.
Network Architect at a computer software company with 11-50 employees
The best features of Cloudflare Web Application Firewall are multiple, including the WAF, rate limiter, and bot attack protection.
IT Manager at Amla Commerce
Cloudflare Web Application Firewall's advanced reporting and analytics tools add a layer that we're able to visualize and see before it actually hits the local firewall.
Owner at Hga consulting
The API security feature is particularly valuable because most attackers do not try to come in from where it is expected.
Senior Cybersecurity Consultant at Cyberoutcome Limited
If someone attempts to access the server, the WAF blocks that SSRF alert, or RCE, Remote Code Execution alert, blocking immediately based on the signature, not only by the payload or the IP address.
SOC Analyst L1 at CMS-IT-SERVICES-PVT-LTD
It reduces the DDoS attacks and reduces the attacks from threat actors, including SQL Injection and zero-day attacks, by using dynamic application profiling from Imperva.
IT Security Analyst & Engineer (Project, Remote) Australia-Europe at a manufacturing company with 10,001+ employees
We are using it for some of the security features for our applications, particularly for securing traffic in transit with SSL.
Information Security and Compliance Officer at Carnation
The Web Application Firewall (WAF) in Microsoft Azure Application Gateway has been very effective in protecting applications from security threats.
IT Manager at Chong Hua Hospital
The gateway's Web Application Firewall feature enhances security as it is the first entry point to your network from the outside world.
Cloud Head at White-Spunner & Associates
 

Categories and Ranking

Cloudflare Web Application ...
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Ranking in Web Application Firewall (WAF)
5th
Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
26
Ranking in other categories
No ranking in other categories
Imperva Application Securit...
Ranking in Web Application Firewall (WAF)
1st
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
144
Ranking in other categories
CDN (2nd), Distributed Denial-of-Service (DDoS) Protection (4th), Bot Management (1st), API Security (2nd)
Microsoft Azure Application...
Ranking in Web Application Firewall (WAF)
7th
Average Rating
7.4
Reviews Sentiment
6.8
Number of Reviews
50
Ranking in other categories
Application Delivery Controllers (ADC) (7th)
 

Mindshare comparison

As of May 2026, in the Web Application Firewall (WAF) category, the mindshare of Cloudflare Web Application Firewall is 4.7%, down from 7.1% compared to the previous year. The mindshare of Imperva Application Security Platform is 7.7%, up from 7.1% compared to the previous year. The mindshare of Microsoft Azure Application Gateway is 3.8%, down from 9.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
Imperva Application Security Platform7.7%
Cloudflare Web Application Firewall4.7%
Microsoft Azure Application Gateway3.8%
Other83.8%
Web Application Firewall (WAF)
 

Featured Reviews

DB
CTO at PlayNirvana
Advanced security reporting has protected high-traffic betting platforms from constant attacks
I don't see room for improvement to Cloudflare Web Application Firewall. One thing I don't know much about because we have a dedicated IT team for that, and I'm not involved with Cloudflare much anymore. But if I were to compare them to F5, I would like to see more features that F5 offers. F5 has an option to bring the whole infrastructure, the whole WAF and all their packages, Bot Management, and everything else on your infrastructure. You need to install certain services from their side, and then you can choose if you would like requests to hit your servers immediately or if requests need to be proxied through F5 backbone. That would be a nice addition because we have 90% of the traffic as legit traffic coming from whitelisted servers. If it comes from whitelisted servers, I don't need to go every request through the backbone; I could easily just IP whitelist everything. Then I could maybe have Bot Management on my infrastructure that drastically reduces the price of Cloudflare. I would like to see Push CDN more improved in the next release of Cloudflare Web Application Firewall. And maybe something similar to Pushpin that Fastly has, which is an option where you can push messages that then can be scaled globally over the network. From our perspective, if we have a listener that listens for stock updates, I would just need to have one processor that pushes those updates to the Cloudflare API, and then Cloudflare would broadcast that message to all listeners. Cloudflare will check the order of the message, and if you, as a customer, are not connected or have some kind of network issue, when you reconnect, you will receive the latest state and missing updates.
ST
Senior Cybersecurity Consultant at Cyberoutcome Limited
Strong policies and bot defenses have secured critical APIs and have reduced attack noise
From my research regarding the IAM space that Imperva Application Security Platform is trying to look into, I believe they still need to do a lot of modeling and modification to make sure that also helps. There are several competitors in the IAM space, so Imperva would do well if they can do some basic modeling and modifications from my own personal research and my own experience in the IAM space. Alternatively, they could actually just focus on trying to be stronger in the web application space and the database activity monitoring space.The main reason it is not a perfect ten is regarding support. At times, having to reach the support team takes eight hours to ten hours maximum. There are times when clients could have urgent issues to attend to. The support team could do more by having a faster response rate.
SS
Cloud Specialist at a tech services company with 10,001+ employees
Mutual TLS has secured our web services and now needs broader protocol support
The most valuable feature we have found in Microsoft Azure Application Gateway is mutual TLS. We find mutual TLS valuable because we can verify the client securely by setting up the trust certificate of the client, and also if we do it at the client side as well. This successfully develops mutual trust, ensuring that we know the client who is calling our service is a legitimate client. That is a very nice feature.Microsoft Azure Application Gateway has helped manage our traffic efficiently because we have many web services that we can put behind the same URL, and we can have different URLs with the same Application Gateway with a limited number of listeners. We can do host-based routing as well as URL-based routing or path-based routing. It supports both, so we can have even a single URL supporting many applications, or we can have different URLs for different applications respectively. We have both use cases.
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Top Industries

By visitors reading reviews
Construction Company
17%
Comms Service Provider
9%
Financial Services Firm
9%
Computer Software Company
7%
Financial Services Firm
13%
Manufacturing Company
8%
Computer Software Company
7%
Comms Service Provider
7%
Computer Software Company
11%
Financial Services Firm
10%
Manufacturing Company
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise6
Large Enterprise6
By reviewers
Company SizeCount
Small Business88
Midsize Enterprise25
Large Enterprise69
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise6
Large Enterprise24
 

Questions from the Community

What needs improvement with Cloudflare Web Application Firewall?
I don't see room for improvement to Cloudflare Web Application Firewall. One thing I don't know much about because we...
What is your primary use case for Cloudflare Web Application Firewall?
We are using Cloudflare Web Application Firewall's advanced reporting and analytics tools with their Zero Trust, so e...
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...
What's the difference between Azure Front Door and Application Gateway?
We found Azure Front Door to be easily scaled and very stable. The implementation is very fast and Microsoft provides...
How does AWS WAF compare to Microsoft Azure Application Gateway?
Our organization ran comparison tests to determine whether Amazon’s Web Service Web Application Firewall or Microsoft...
What do you like most about Microsoft Azure Application Gateway?
Application Gateway automatically redirects unwanted users and takes care of the security aspect. It also handles the...
 

Also Known As

Cloudflare WAF
Imperva Bot Management, Imperva Web Application Firewall, Imperva API Security
Azure Application Gateway, MS Azure Application Gateway
 

Overview

 

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk
Hitachi, BNZ, Bitstamp, Moz, InnoGames, BTCChina, Wix, LivePerson, Zillow and more.
Lilly, AccuWeather, AIRFRANCE, Honeywell
Find out what your peers are saying about Imperva Application Security Platform vs. Microsoft Azure Application Gateway and other solutions. Updated: April 2026.
893,221 professionals have used our research since 2012.