Imperva Web Application Firewall vs The Fastly Next-Gen WAF (powered by Signal Sciences) comparison

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Executive Summary

We performed a comparison between Imperva Web Application Firewall and The Fastly Next-Gen WAF (powered by Signal Sciences) based on real PeerSpot user reviews.

Find out in this report how the two Web Application Firewall (WAF) solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.
772,679 professionals have used our research since 2012.
Featured Review
Quotes From Members
We asked business professionals to review the solutions they use.
Here are some excerpts of what they said:
Pros
"I am impressed with the product's scalability, availability, easy management, and security. We were able to integrate the product with Azure and Sentinel.""Very scalable and very stable firewall for web applications, with a good interface in its cloud version. Mitigation is its most valuable feature. The technical support for this product is also good.""Imperva WAF's strongest features are the detection of web application threats and vulnerabilities in the source code.""There are many features. There is ease of deployment. You can deploy the Imperva Web Application Firewall in two to three minutes. After that, you have to set the policies. For setting policies, you have toggle buttons. You can turn something on or off.""Imperva monitors all traffic, even customer access, to the web application. Then, Imperva uses features like signatures to identify attacks like cross-site scripting or SQL injection.""The most important feature I have found to be the ease in how to do the backup and restores.""Configuration for different application sources is most valuable. We can segregate the traffic that an application is carrying and identify the sizing in Imperva.""The most valuable features of the Imperva Web Application Firewall are performance and flexibility. We can extend or customize the box itself."

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"Fastly (Signal Sciences) integrates and tags the intermittent traffic based on patterns. It generates signals and provides them in a dashboard where we can view them and decide whether to allow or deny traffic. It's a more advanced and easy-to-navigate dashboard.""The product's most valuable feature is its ability to set up the rules easily.""When configuring a web application firewall using Signal Sciences, we configure a rule whereby no one except a few people can access the application."

More The Fastly Next-Gen WAF (powered by Signal Sciences) Pros →

Cons
"The support for the on-premises version needs improvement.""One potential improvement for Imperva is enhancing its alert system.""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.""There could be some limitations that from the converged infrastructure perspective: when you want to converge with everything and you want Imperva to get there easily because it's not a cloud component. For example, when you want to build servers and you're using OneView to manage your software-defined networks, implementing Imperva right away is not that simple. But if you're doing just a simple cloud infrastructure with servers in there, you're good to go. Also, we are not able, with Imperva, to block by signatures. Imperva by itself needs to be complemented with another service to do URL filtering.""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.""It is complicated to integrate the solution's on-cloud version with other platforms.""The process to upgrade from one version to another can be a lot simpler than it is currently.""The reporting is missing some features, such as: only two export formats, and the time period does not include the last day, week, year."

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"The areas that could be improved in Signal Sciences include the effectiveness of rules, as many didn't function optimally and required custom rule-writing to address bypasses for WAF.""Fastly don't support caching for China users. That's the only feature lacking compared to Akamai.""Even if we create some custom rules, Signal Sciences cannot capture some of the malicious traffic."

More The Fastly Next-Gen WAF (powered by Signal Sciences) Cons →

Pricing and Cost Advice
  • "Make sure you understand the way that Imperva charges. It's very affordable. However, I would like to see a package with the Virtual Patching included. You get to do patching separately."
  • "Everybody complains about the price of this solution."
  • "The cost of this solution depends on the platform."
  • "The price of this solution is a little bit high compared to competitors."
  • "There are some licenses that you have to buy to use some features. Its price could be better. Price is always important because, at the end of the day, customers have a budget. If you can meet the budget, you can sell, and if you don't, you cannot sell."
  • "There is a license for this solution and we purchase the license annually with no additional fees."
  • "There are a couple of different licensing models."
  • "The price of Imperva Web Application Firewalls is expensive compared to others."
  • More Imperva Web Application Firewall Pricing and Cost Advice →

  • "Signal Sciences is pretty cheap compared to other solutions."
  • "The product has an affordable cost."
  • "The pricing is 50% less than Akamai."
  • More The Fastly Next-Gen WAF (powered by Signal Sciences) Pricing and Cost Advice →

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    Questions from the Community
    Top Answer: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 have to look for other ADC's like F5, Imperva, Radware, Fortinet, etc. 
    Top Answer:You can have a look to Imperva Cloud WAF, the anti-DDoS mitigation is under 1s and works very well. I observed a lot of DDoS attacks that were well managed (even not seen by the customer) by Imperva… more »
    Top Answer:The product's most valuable feature is its ability to set up the rules easily.
    Top Answer:Fastly don't support caching for China users. That's the only feature lacking compared to Akamai.
    Ranking
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    Comparisons
    6,176
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    Average Words per Review
    374
    Rating
    8.7
    Views
    836
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    630
    Reviews
    3
    Average Words per Review
    604
    Rating
    7.7
    Comparisons
    Also Known As
    Signal Sciences Next-Gen WAF, Signal Sciences RASP
    Learn More
    Fastly
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    Overview

    Imperva Web Application Firewall is a versatile solution that protects web applications and databases from various attacks, including DDoS, cross-site scripting, and SQL injection attacks. It offers data security, availability, and access control and can be deployed on-premises or on the cloud. 

    The solution has good security against web attacks and offers advanced bot protection, API security, and mitigation features. Imperva WAF is easy to configure and deploy; it has good customer service and an excellent user interface.

    The Fastly Next-Gen WAF (powered by Signal Sciences) provides web application and API protection, RASP, rate limiting, bot protection and DDoS purpose built to eliminate the challenges of legacy WAF.

    Sample Customers
    BlueCross BlueShield, eHarmony, EMF Broadcasting, GE Healthcare, Metro Bank, The Motley Fool, Siemens
    Chef, Adobe, Datadog, Etsy, GrubHub, Vimeo, SendGrid, Under Armour, Duo, AppNexus
    Top Industries
    REVIEWERS
    Computer Software Company30%
    Financial Services Firm20%
    Insurance Company10%
    Comms Service Provider10%
    VISITORS READING REVIEWS
    Financial Services Firm18%
    Computer Software Company14%
    Manufacturing Company7%
    Insurance Company6%
    VISITORS READING REVIEWS
    Educational Organization24%
    Computer Software Company14%
    Financial Services Firm13%
    Manufacturing Company8%
    Company Size
    REVIEWERS
    Small Business53%
    Midsize Enterprise16%
    Large Enterprise31%
    VISITORS READING REVIEWS
    Small Business21%
    Midsize Enterprise15%
    Large Enterprise64%
    VISITORS READING REVIEWS
    Small Business18%
    Midsize Enterprise30%
    Large Enterprise52%
    Buyer's Guide
    Imperva Web Application Firewall vs. The Fastly Next-Gen WAF (powered by Signal Sciences)
    March 2024
    Find out what your peers are saying about Imperva Web Application Firewall vs. The Fastly Next-Gen WAF (powered by Signal Sciences) and other solutions. Updated: March 2024.
    772,679 professionals have used our research since 2012.

    Imperva Web Application Firewall is ranked 6th in Web Application Firewall (WAF) with 47 reviews while The Fastly Next-Gen WAF (powered by Signal Sciences) is ranked 24th in Web Application Firewall (WAF) with 3 reviews. Imperva Web Application Firewall is rated 8.6, while The Fastly Next-Gen WAF (powered by Signal Sciences) is rated 7.6. The top reviewer of Imperva Web Application Firewall writes "Offers simulation for studying infrastructure and hybrid infrastructure protection". On the other hand, the top reviewer of The Fastly Next-Gen WAF (powered by Signal Sciences) writes "Offers Varnish Configuration Language (VCL) and provides enhanced dashboards, making it easy to identify and allow or deny traffic based on the signals it provides". Imperva Web Application Firewall is most compared with AWS WAF, F5 Advanced WAF, Microsoft Azure Application Gateway, Fortinet FortiWeb and Azure Front Door, whereas The Fastly Next-Gen WAF (powered by Signal Sciences) is most compared with AWS WAF, Cloudflare, Microsoft Azure Application Gateway, Azure Web Application Firewall and Akamai App and API Protector. See our Imperva Web Application Firewall vs. The Fastly Next-Gen WAF (powered by Signal Sciences) report.

    See our list of best Web Application Firewall (WAF) vendors.

    We monitor all Web Application Firewall (WAF) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.