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Fastly vs Imperva Application Security Platform comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 17, 2025

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
1st
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
76
Ranking in other categories
Managed DNS (1st), Cloud Security Posture Management (CSPM) (13th)
Fastly
Ranking in CDN
8th
Ranking in Distributed Denial-of-Service (DDoS) Protection
13th
Average Rating
8.8
Reviews Sentiment
6.6
Number of Reviews
8
Ranking in other categories
Web Application Firewall (WAF) (19th)
Imperva Application Securit...
Ranking in CDN
7th
Ranking in Distributed Denial-of-Service (DDoS) Protection
6th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
133
Ranking in other categories
Web Application Firewall (WAF) (20th)
 

Mindshare comparison

As of September 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 18.9%, up from 17.8% compared to the previous year. The mindshare of Fastly is 2.5%, up from 1.9% compared to the previous year. The mindshare of Imperva Application Security Platform is 6.2%, down from 7.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Market Share Distribution
ProductMarket Share (%)
Cloudflare18.9%
Imperva DDoS6.2%
Fastly2.5%
Other72.4%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

Carlos Alam Hernandez Baruch - PeerSpot reviewer
Fast and secure deployments simplify operations for government and fintech clients
It is a fast and secure DNS. It is very easy to deploy, and my customers are happy with this tool. Additionally, the CDN performance in Mexico is excellent, providing fast service and tools. It offers reliability during high-traffic periods, ensuring no impact on the environment. It helps my clients avoid using on-premise boxes, simplifying operations as they only use the prices on Cloudflare.
Nick Wilsdon - PeerSpot reviewer
An easily scalable and stable product that provides exceptional support
The product should provide improved bot detection and management. The product should also provide support for code management. Everybody working in CDN is currently looking for ways to better manage code deployment with various authorization levels and synchronization with our lower environments. Matching up what's happening in CDN with what's happening on the origin regarding testing would always be useful.
Bhupesh-Sharma - PeerSpot reviewer
Enhanced network security with effective threat filtering and good bot managing features
We use Imperva DDoS protection to safeguard our network from multiple attacks. It is especially useful to protect websites or applications by redirecting traffic to eliminate threats Imperva DDoS increases our uptime to 99.99% by filtering and managing traffic to ensure only genuine traffic…

Quotes from Members

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

Pros

"Cloudflare offers CDN and DDoS protection. We have the front end, API, and database in how you structure applications."
"When using services like Heroku, Cloudflare is very useful for CNAME flattening. I also use it for their end-to-end SSL with TLS authentication on nginx for securing servers."
"Cloudflare consolidates various capabilities into one product, streamlining processes."
"From what I've seen so far, there are no negatives to report as of yet"
"It is a fast and secure DNS."
"I get a lot of value from Cloudflare's API because it enables you to build a separate environment inside the solution. You can create a domain for performing test requests before you move to the production environment and connect various domains."
"DDoS attacks target unprotected machines. Cloudflare detects and stops these attacks using internal systems. It identifies incoming DDoS attacks, issuing challenges or blocking them immediately."
"It is easier to configure and develop documentation to see how we have configured firewalls."
"Support is good; the product works as advertised. We have a Slack connection with them. So we can basically ask for help, live, engage, and ring when they respond. Very quickly."
"Fastly uses configuration versioning, where you can deploy a new version in less than one minute."
"The product's initial setup phase is straightforward."
"The product helps our organization to access sites located in different regions quickly."
"Compute@Edge features are valuable to me."
"Its initial setup process is straightforward."
"Rate limiting is a good feature that protects from volumetric attacks."
"The three-second service level agreement is already better than the competition."
"Its inline transferring mode is the most valuable because it is 100% transparent. When you change the IP, there is no change on the network side. If you can't and want to try to reach an IP, you can reach the server IP. There are many other advanced security features in it. The smallest appliances of Imperva can handle the highest traffic at a customer site. For example, a smaller appliance from Imperva can provide you the same security as an F5 product."
"Imperva WAF's strongest features are the detection of web application threats and vulnerabilities in the source code."
"​Technical support provides good, quick responses."
"On the real time, you can see live traffic, which is flowing into our website."
"It is a stable solution."
"An improvement has been to our website: It increases the speed of our response, the capacity of the site, and optimizes the bandwidth.​"
"The most important feature I have found to be the ease in how to do the backup and restores."
 

Cons

"The documentation could improve for Cloudflare DNS."
"I would like Cloudflare to offer a dedicated account manager for large enterprise clients like us."
"The solution could be more user-friendly."
"The pricing could be improved."
"The integration of LLMs on the dashboard is something that is needed in the tool."
"It would be good if Cloudflare could have more servers for better traffic routing or an increase in the traffic routed. This is what I'd like to improve in Cloudflare."
"The timing aspect can lead to it being considered overpriced. This is a particular concern we have with Cloudflare, as they may struggle with accurately detecting the client."
"We are a product integrator and reseller, and we would like to have a better partner relationship, similar to a channel sales relationship. Sometimes we are on our own or get diverted by Cloudflare because they have direct sales, which competes with us and makes it difficult to build a relationship with this company since we want to be an MSP or a managed service provider for the solution."
"Support is not that great."
"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."
"The product should provide improved bot detection and management."
"The solution's pricing could be better."
"What I don't like about Fastly is that they charge a heavy price."
"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."
"Fastly's customer service area needs improvement."
"I am not sure if this application has a policy where you can create your custom policy and run it as our firewall. We should have some ability to also create some custom policy, then run it as a firewall."
"There's always room for improvement. Occasionally, there might be false-positive alerts."
"The log analytics interface within Incapsula isn't really good. For example, if you have to get all logs from there, it's a very cumbersome process."
"Imperva Web Application Firewall is a good system, but we found that the visibility of the diverse-path server, e.g. where the traffic is coming from, the different IPs, etc., needs improvement."
"It needs to be improved every time there are new attacks."
"Imperva Web Application Firewall could improve the console by making it easier to use."
"Their portal is very limited and needs improvement."
"I would like to see improvements in the pooling of threats and attacks, possibly to enlarge the scale of indicators of compromise."
 

Pricing and Cost Advice

"The solution is expensive when compared to other products but offers unlimited bandwidth."
"We don't have any issues with the price."
"It's a premium model. You can start at zero and work your way up to the enterprise model, which has a very high pricing level."
"The product's pricing is cheap."
"The pricing for the service is reasonable, neither excessively cheap nor prohibitively expensive. It aligns well with the value of their solution."
"A free version of the solution is available."
"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."
"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."
"In my opinion, Fastly is priced competitively."
"It is an expensive solution."
"The pricing has been very competitive."
"I've generally found Fastly to be very competitive in pricing, especially around Compute@Edge."
"You need to pay a premium price for the tool."
"The solution is cheaper than other products in the market."
"Fastly is less expensive than one of its competitors."
"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."
"There is a license or subscription renewal that our customers pay."
"Imperva charges us based on bandwidth, which is better than other vendors that charge us according to data transfer."
"We have an issue with Imperva Incapsula in the Iraqi market because of the high price."
"Pricing could be more competitive."
"Imperva Web Application Firewall price is higher compared to other solutions. However, everything is included in the price."
"The data packages are higher than our needs so we end up paying for data that we don't use."
"We are satisfied with the pricing."
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Comparison Review

it_user68487 - PeerSpot reviewer
Nov 6, 2013
CloudFlare vs Incapsula: Web Application Firewall
CloudFlare vs Incapsula: Round 2 Web Application Firewall Comparative Penetration Testing Analysis Report v1.0 Summary This document contains the results of a second comparative penetration test conducted by a team of security specialists at Zero Science Lab against two cloud-based Web…
 

Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Computer Software Company
14%
Financial Services Firm
11%
Comms Service Provider
10%
Manufacturing Company
8%
Financial Services Firm
14%
Computer Software Company
13%
Manufacturing Company
9%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business5
Large Enterprise4
By reviewers
Company SizeCount
Small Business83
Midsize Enterprise25
Large Enterprise61
 

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 do you like most about Cloudflare?
Cloudflare offers CDN and DDoS protection. We have the front end, API, and database in how you structure applications.
What do you like most about Fastly?
Support is good; the product works as advertised. We have a Slack connection with them. So we can basically ask for h...
What needs improvement with Fastly?
Fastly has POPs with huge servers across the world, so it works effectively everywhere except the mainland China regi...
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 do you like most about Imperva Incapsula?
We use Imperva DDoS to stop DDoS attacks and reduce the amount of unwanted queries against web services or web scraping.
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...
 

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: September 2025.
867,497 professionals have used our research since 2012.