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Fastly vs Imperva Application Security Platform 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:
 

Categories and Ranking

Cloudflare
Sponsored
Ranking in CDN
1st
Ranking in Distributed Denial-of-Service (DDoS) Protection
3rd
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
79
Ranking in other categories
WAN Optimization (4th), Managed DNS (1st), Domain Name System (DNS) Security (5th), Cloud Security Posture Management (CSPM) (17th)
Fastly
Ranking in CDN
7th
Ranking in Distributed Denial-of-Service (DDoS) Protection
10th
Average Rating
8.8
Reviews Sentiment
6.3
Number of Reviews
9
Ranking in other categories
Web Application Firewall (WAF) (22nd)
Imperva Application Securit...
Ranking in CDN
3rd
Ranking in Distributed Denial-of-Service (DDoS) Protection
4th
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
143
Ranking in other categories
Web Application Firewall (WAF) (3rd), Bot Management (1st), API Security (2nd)
 

Mindshare comparison

As of April 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 14.9%, down from 18.8% compared to the previous year. The mindshare of Fastly is 3.3%, up from 2.3% compared to the previous year. The mindshare of Imperva Application Security Platform is 8.3%, up from 7.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
ProductMindshare (%)
Cloudflare14.9%
Imperva Application Security Platform8.3%
Fastly3.3%
Other73.5%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

M.A. Faisal - PeerSpot reviewer
General Manager at bKash Limited
Advanced protection has secured critical web workloads and provides clear traffic visibility
From a security perspective, there remains a security loophole, as some browsers in the market can bypass the Turnstile solution, which requires approximately 40 seconds to do so. From a performance perspective, this is acceptable. We also tried Google reCAPTCHA, and that can also be bypassed. From a security perspective, I would say neither solution is completely secured. Regarding uptime, we have faced a couple of incidents due to Cloudflare in recent years, so I cannot say we receive 100% uptime for our region. We sometimes face challenges, including downtime and other issues. As a result, we are not receiving 100% uptime from Cloudflare's solution. Since most of our customers are in this region, we need alternatives. We need something more competitive than Cloudflare. Unfortunately, in Bangladesh, Cloudflare has three points of presence already, and we cannot find any other solution provider in Bangladesh as an alternative, which presents another challenge. Competitor solutions have more attack signatures, which ensure better security compared to Cloudflare's predefined configurations. Customers do not have options to modify any configuration parameters in Cloudflare, whereas other competitor solutions, such as F5 Distributed Cloud, allow customers to tune configurations according to their requirements. Cloudflare could improve in this area. Additionally, regarding visibility, Cloudflare has static visibility, but they could adopt dynamic graph features for their customers.
PP
Technical support engineer at Adobe
Optimized ecommerce performance and improved access control through image handling and IP filtering
I believe that Fastly should provide guidelines for their WAF blocking rules. It should be public what the rules are that are blocking their contents. I believe Fastly should provide regional IP addresses instead of POP IPs. Fastly should provide features similar to Cloudflare regarding a block list. Additionally, a POP address should be there with a wide range of IP addresses provided, public static IP addresses, so customers can integrate egress IPs. Fastly should provide WebP image processing on the backend instead of on the fly. It would be a very useful feature to avoid unnecessary time for browser to browser and local cookies. I believe that Fastly service has a few gaps. We are not getting quick responses from Fastly technical support engineers. Sometimes they depend on their D3 developers. There should be transparency.
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.

Quotes from Members

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

Pros

"The overall performance of this solution is what makes it one of the best solutions on the market."
"It is very clear and the information is very useful."
"It is a fast and secure DNS."
"Cloudflare is easier to manage than the solutions provided by these vendors, and the user experience is much more straightforward and appeals to a lot of developers."
"The tool is user-friendly."
"The API gives us the ability to remote control our DNS settings."
"If someone is looking for a secure and optimized wrapper over an open website, I would suggest CloudFlare services."
"The simplicity of the overall dashboard makes it a great product for a user like me who has less understanding of the internet than a developer or other more technical people."
"In summary, this solution is easy to manage, quick to deploy, and all of my customers are happy."
"Fastly combines both the CDN side and the Signal Sciences next-generation WAF, which is closely integrated with the CDN, allowing us to use both products seamlessly."
"The product helps our organization to access sites located in different regions quickly."
"Fastly provides CDN, WAF, image optimization, and IP restriction."
"Compute@Edge features are valuable to me."
"Rate limiting is a good feature that protects from volumetric attacks."
"Its initial setup process is straightforward."
"The product's initial setup phase is straightforward."
"My advice to anyone considering Imperva Web Application Firewall is that they can safely go to this environment without having a second thought."
"It's a good product."
"The main benefit is the use case my clients find valuable, because for the product and security there is good API inspection, and if any abnormal API appears or there are any similarities due to changes, the API security features will catch that so allowed APIs will get access while others will be blocked."
"The user-generated spam stopped after we started using Incapsula, and so we feel more secure."
"There are a number of features that are valuable such as the account takeover and various antivirus features."
"Imperva Incapsula has many valuable features. One, it protects the top 10 OWAS vulnerability, the open web application software platform, this is standard. Secondly, it protects against broken authentication. As well, it has remote execution of code."
"Imperva Application Security Platform positively impacts us because we have a critical website, so by placing a WAF of Imperva's quality, it allows us to have visibility and granular control over the various attacks that can occur on the website."
"The most valuable features of the Imperva Web Application Firewall are DDoS, malware, and the other malicious threat prevention it provides. Additionally, third-party integration is available. You can forward the log for further analysis."
 

Cons

"Sometimes their more advanced caching tools can cause higher first-byte times and problems with JavaScript."
"Cloudflare's console should be made more user-friendly."
"Cloudflare should add more documentation and pricing to the cloud version."
"The tool needs to improve caching of servers. The product needs to include PFX certificate as well."
"Sometimes their more advanced caching tools can cause higher first-byte times and problems with JavaScript."
"The solution could work at being less expensive. It costs a lot to use it."
"Cloudflare does not have an on-premise solution. If they had different approaches they could be better suited to accommodate more customers, such as on-premise and hybrid deployments. For example, hybrid deployments would be useful where you could move the traffic from the enterprise to the cloud."
"We have noticed multiple instances where Cloudflare falsely indicates that our servers are down, even when there is no actual load on them. This makes it challenging for us to identify the exact issue."
"Fastly's customer service area needs improvement."
"The product should provide improved bot detection and management."
"Stronger analytics would be helpful, like showing configurations that haven't served a certain amount of traffic in a while. With many properties, things can get lost track of - duplicates or unused configurations not properly decommissioned."
"We are not getting quick responses from Fastly technical support engineers. Sometimes they depend on their D3 developers."
"It is missing a "staging" platform to deploy a test configuration with all of the real settings, which would allow us to properly test before putting it into production."
"What I don't like about Fastly is that they charge a heavy price."
"It's not easy to start with Fastly if you don't have VCL knowledge, so it appears very complex at the beginning."
"Support is not that great."
"There's always room for improvement. Occasionally, there might be false-positive alerts."
"Licensing should be improved. Most of the clients aren't happy. It's expensive."
"The process to upgrade from one version to another can be a lot simpler than it is currently."
"The salespeople tend to exaggerate its capabilities, which can cost you money if you don't verify the information."
"Customer Service: Average to poor. Technical Support: Average to poor."
"Learning capability of the device is quite weak."
"We faced challenges with high costs, as the customer perceived pricing for gateways to be excessive, but we handled multiple billing instances with sophisticated setups."
"There is nothing specific where the application firewall is falling short."
 

Pricing and Cost Advice

"The product's pricing is cheap."
"We don't have any issues with the price."
"The pricing for the service is reasonable, neither excessively cheap nor prohibitively expensive. It aligns well with the value of their solution."
"The price of the solution is expensive."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."
"I believe their performance has improved, but I'd like to refrain from discussing the pricing aspect related to the cloud. The pricing, in my opinion, could be simplified, and I think they should consider reevaluating the pricing for support, as it can be quite high. At times, this cost can make it challenging to choose CARFAGuard or opt for the support."
"The price is reasonable."
"Fastly is less expensive than one of its competitors."
"In my opinion, Fastly is priced competitively."
"It is an expensive solution."
"The solution is cheaper than other products in the market."
"I've generally found Fastly to be very competitive in pricing, especially around Compute@Edge."
"The pricing has been very competitive."
"You need to pay a premium price for the tool."
"The price is high compared to other solutions like FortiWeb."
"For enterprise contracts you will be in touch with a dedicated account manager who will guide you regarding licensing."
"It is expensive."
"It is a very expensive solution. The price is very high. A lot of customers tell us that they would love to use Imperva more. I have some customers who have 50 websites, but they have only 10 websites on Imperva because of the price. They would love to have all their websites running through Imperva, but they can't. They have to choose the more critical websites to protect because the price is very high. It is a very good product, but it is too expensive. If you buy a plan for 20 megabytes and you don't consume all of your 20 megabytes, it is okay, but if you consume more, you are charged for the superior traffic."
"The cost of this solution depends on the platform."
"I rate the product price a four on a scale of one to ten, where one is a low price, and ten is a high price."
"Imperva Web Application Firewall price is higher compared to other solutions. However, everything is included in the price."
"On a scale from one to ten, where one is cheap and ten is expensive, I rate the solution's pricing a five out of ten."
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Top Industries

By visitors reading reviews
Financial Services Firm
10%
Comms Service Provider
10%
Computer Software Company
8%
Manufacturing Company
8%
Comms Service Provider
12%
Financial Services Firm
11%
Computer Software Company
8%
Healthcare Company
8%
Financial Services Firm
13%
Manufacturing Company
8%
Computer Software Company
7%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise11
Large Enterprise26
By reviewers
Company SizeCount
Small Business5
Large Enterprise5
By reviewers
Company SizeCount
Small Business88
Midsize Enterprise25
Large Enterprise67
 

Questions from the Community

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
Cloudflare. We are moving from Akamai prolexic to Cloudflare. Cloudflare anycast network outperforms Akamai static GR...
Which would you choose - Cloudflare DNS or Quad9?
Cloudflare DNS is a very fast, very reliable public DNS resolver. It is an enterprise-grade authoritative DNS service...
What is your experience regarding pricing and costs for Cloudflare?
The tool's pricing is moderate. I rate the product’s pricing a five out of ten, where one is cheap, and ten is expens...
What needs improvement with Fastly?
I believe that Fastly should provide guidelines for their WAF blocking rules. It should be public what the rules are ...
What is your primary use case for Fastly?
I am using Fastly in the Adobe Commerce Cloud project. In this project, it is working as a reverse proxy for CDN and ...
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

Cloudflare DNS
No data available
Imperva Bot Management, Imperva Web Application Firewall, Imperva API Security
 

Overview

 

Sample Customers

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.
Twitter, Airbnb, Alaska Airlines, Pinterest, Vimeo, The Guardian, The New York Times, Ticketmaster, The Drupal Association, Opera, about.com, imgur, Etsy, Foursquare, GitHub, New Relic, shopify, Shazam, Firebase
Hitachi, BNZ, Bitstamp, Moz, InnoGames, BTCChina, Wix, LivePerson, Zillow and more.
Find out what your peers are saying about Fastly vs. Imperva Application Security Platform and other solutions. Updated: April 2026.
892,287 professionals have used our research since 2012.