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The Fastly Next-Gen WAF (powered by Signal Sciences) vs Wallarm NG WAF comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 1, 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
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
75
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (14th)
The Fastly Next-Gen WAF (po...
Average Rating
7.6
Reviews Sentiment
7.1
Number of Reviews
3
Ranking in other categories
Web Application Firewall (WAF) (26th)
Wallarm NG WAF
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
5
Ranking in other categories
Web Application Firewall (WAF) (36th), API Security (12th)
 

Featured Reviews

Spencer Malmad - PeerSpot reviewer
It's easy to set up because you point the DNS to it, and it's working in under 15 minutes
Cloudflare is highly scalable. Cloudflare is a system with a web portal that the end users like me see. It's a console where we can adjust the DNS, caching, and security features all in that console. Cloudflare owns thousands of servers across the world that cache the data. It's a powerful solution. When clients sign up for Cloudflare, they're getting this monster content delivery network, security, and a web application firewall in one. It's all rolled into one, and it's massive. Unless you have your website hosted on a massive hosting provider, there's no way that you can deliver the amount of data that Cloudflare can provide to the end users. If you have static content, there's no way that you can ever match what Cloudflare can do. Obviously, there are competitors to Cloudflare that do the same, but I'm saying other types of solutions. Let's say you go with F5. Great, that's on-prem. That's in your colo. You can't deliver as much data to the internet as you can with a CDN. You don't have to spend $20,000 on a net scaler, F5, or whatever Cisco's selling now. You don't have to buy that. You pay them $50 a month or $150 a month. It's totally worth it because even in five years, you'll never get the performance value, not just the actual ROI. You have to consider how much throughput you can get with Cloudflare.
Archana Heeralal - PeerSpot reviewer
A good solution to implement web application firewall for applications
There are some lags in Signal Sciences for the web application firewalls. Even if we create some custom rules, Signal Sciences cannot capture some of the malicious traffic. There is a little bit of complexity with custom rules that should be removed. Signal Sciences should add a feature called rate limiting with multiple options, wherein I can create a rate limiting based on the cookie request or the IP.
it_user666765 - PeerSpot reviewer
Deployment is simple. Machine learning techniques lower the false-positives alerts rate.
The use of a WAF becomes especially relevant in the case of concrete vulnerabilities, such as those uncovered via penetration tests or source code reviews. Even if it were possible to fix the vulnerability in the application promptly and with a reasonable amount of effort, the modified version can generally only be deployed at the next maintenance interval; often 2-4 weeks later (a patch dilemma). For a WAF with whitelisting, vulnerabilities can be fixed promptly (hotfix) so that they cannot be exploited before the next scheduled maintenance. WAFs are especially fast in this aspect, meaning they can collaborate with source code analysis tools, so that detected external vulnerabilities can automatically result in a recommended rule set for the WAF. A WAF is particularly important in securing productive web applications which themselves in turn consist of multiple components and which cannot be quickly changed by the operator; e.g., in the case of poorly documented applications or regarding third-party products without sufficient maintenance cycles. A WAF is the only option for promptly closing external vulnerabilities.

Quotes from Members

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

Pros

"There are key things that are used for our enterprise customers, such as Lambda and DNS."
"The solution provides good load balancing and protection against DDoS attacks."
"The most valuable feature is the web application firewall."
"The web application firewall brought us good security and a view of the accesses/blocks of the entire domain and subdomain that were accessed both by region (country) and IPs."
"The tool is user-friendly."
"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."
"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."
"The most valuable feature is its usability."
"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."
"When configuring a web application firewall using Signal Sciences, we configure a rule whereby no one except a few people can access the application."
"The product's most valuable feature is its ability to set up the rules easily."
"Helps us to monitor situation in regards to attacks to our sites and prevents a lot of them."
 

Cons

"The solution could work at being less expensive. It costs a lot to use it."
"The product support needs to be accessible from more places, a wider area of coverage."
"There might be helpful if there was some web application firewall feature."
"Areas like how assessment, discovery, and payload are dealt with and how it all comes into your organization can be considered when trying to make suggestions to Cloudflare for improvements."
"The reporting can definitely be improved to offer a lot more explanation on something that may have happened or has actually happened."
"The pricing could be improved."
"Support response time could be improved."
"It should confirm audit findings of the assigned area with auditees to ensure that the audit conclusions are based on an accurate understanding of the issues."
"Even if we create some custom rules, Signal Sciences cannot capture some of the malicious traffic."
"Fastly don't support caching for China users. That's the only feature lacking compared to Akamai."
"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."
"The biggest problem for us was the stability and speed using the first version of Wallarm. Now, it is fine."
 

Pricing and Cost Advice

"The product's pricing is minimal compared to other products."
"A free version of the solution is available."
"There are no additional costs beyond the standard licensing fees."
"The tool is a premium product, so it is very expensive."
"In terms of licensing costs, we don't pay for licensing for Cloudflare. We only establish communication, then for peering, Cloudflare takes care of the cross-connection in different data centers."
"We don't have any issues with the price."
"So far I use free tier and happy with it. You can subscribe to business package if needed."
"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 pricing is 50% less than Akamai."
"Signal Sciences is pretty cheap compared to other solutions."
"The product has an affordable cost."
"​Pricing must be cheaper than the competition and the licensing must be good.​"
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Top Industries

By visitors reading reviews
Educational Organization
17%
Computer Software Company
14%
Comms Service Provider
9%
Financial Services Firm
8%
Educational Organization
18%
Computer Software Company
12%
Manufacturing Company
11%
Financial Services Firm
10%
Computer Software Company
19%
Real Estate/Law Firm
9%
Comms Service Provider
7%
Hospitality Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

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 Signal Sciences?
The product's most valuable feature is its ability to set up the rules easily.
What needs improvement with Signal Sciences?
Fastly don't support caching for China users. That's the only feature lacking compared to Akamai.
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Also Known As

Cloudflare DNS
Signal Sciences Next-Gen WAF, Signal Sciences RASP
Wallarm NG-WAF
 

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.
Chef, Adobe, Datadog, Etsy, GrubHub, Vimeo, SendGrid, Under Armour, Duo, AppNexus
Panasonic. Miro. Rappi. Wargaming. Gannett. Omio. Acronis. Workforce Software. Tipalti. SEMRush.
Find out what your peers are saying about The Fastly Next-Gen WAF (powered by Signal Sciences) vs. Wallarm NG WAF and other solutions. Updated: April 2025.
850,043 professionals have used our research since 2012.