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Link11 vs The Fastly Next-Gen WAF (powered by Signal Sciences) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 18, 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

Link11
Ranking in Web Application Firewall (WAF)
33rd
Average Rating
8.4
Reviews Sentiment
7.5
Number of Reviews
11
Ranking in other categories
CDN (14th), Distributed Denial-of-Service (DDoS) Protection (20th), Bot Management (9th), API Security (19th)
The Fastly Next-Gen WAF (po...
Ranking in Web Application Firewall (WAF)
34th
Average Rating
7.6
Reviews Sentiment
4.8
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Web Application Firewall (WAF) category, the mindshare of Link11 is 1.7%, up from 1.2% compared to the previous year. The mindshare of The Fastly Next-Gen WAF (powered by Signal Sciences) is 1.2%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
Link111.7%
The Fastly Next-Gen WAF (powered by Signal Sciences)1.2%
Other97.1%
Web Application Firewall (WAF)
 

Featured Reviews

Chandler Elmore, MBA - PeerSpot reviewer
Community Manager at Lightsource bp
Automated threat detection has reduced staffing needs but dashboard design still needs improvement
Link11 offers high-performing platform capabilities and automated responses. The system operates on its own cloud infrastructure without requiring my input. The automated responses have helped my team and my workflow by reacting to threats in real time and helping mitigate attacks within moments instead of relying on manual alerts and manual response processes. Link11 has positively impacted my organization by helping analyze all incoming traffic continuously, functioning like an employee operating in the background. This background analysis has affected my organization's security and efficiency in that I do not have to worry about it. It operates on the back end automatically, taking care of things that I do not have to worry about or think about, but I know it is working.
reviewer2161107 - PeerSpot reviewer
Staff Engineer at a retailer with 1,001-5,000 employees
Room for improvement with user interface while competitive pricing impresses
It is managed through Infrastructure as Code, so all configurations can be managed in the code itself, which is beneficial. Because it uses rules, it is easy to set up, and we have many different sites where the configurations are straightforward. Though the UI is not very interactive, which is a downside, we can manage many things. The UI is not very intuitive and could be better. However, we manage all the configurations through code, which is easy to maintain. It has extensive anomaly detection capabilities, so the traffic is classified into several categories where thresholds can be defined and customized based on false positives and false negatives. This is advantageous because you do not need to tweak it very often. Once you set it up, an audit once a quarter would suffice. Because The Fastly Next-Gen WAF (powered by Signal Sciences) is API-driven, we have integrations with the CI/CD pipeline through GitHub Actions, making it easy to integrate.

Quotes from Members

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

Pros

"Reblaze knows how to manage security. For me as, someone who knows little about security, it's good that I have a firm that optimizes everything according to their standards. It's their responsibility and they are fully hands-on."
"The real-time monitoring and reporting are very good. There are information updates in their portal every two minutes. They also have the ability to spill it into Sumo Logic, for example. It's very easy to use."
"It is a highly resilient product that can handle significantly larger workloads and high volumes of traffic with ease."
"The main feature is using the rules and being able to see the traffic. It helps us find malicious traffic."
"The feature I find most valuable is the user-friendly dashboard, as it is easy to understand how everything works and it allows you to make decisions quickly and efficiently."
"I very much like the elastic search and reports, allowing us to have a 360-degree view of the customer's activities and enabling us to track down any suspicious bots."
"The most valuable features were the real-time monitoring and the management. With this kind of product, you need a very good management system to allow you to see false positives in real-time; to see what's happening in real-time... The clarity stood out. It was very visible and very easy to navigate; very easy to find the data we were looking for."
"Reblaze has saved us money by optimizing server usage and blocking malicious bots."
"The product's most valuable feature is its ability to set up the rules easily."
"Because The Fastly Next-Gen WAF (powered by Signal Sciences) is API-driven, we have integrations with the CI/CD pipeline through GitHub Actions, making it easy to integrate."
"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."
 

Cons

"We have multiple products behind different instances of Reblaze. We have one instance for staging and then we have a production instance for multiple products. One of the things that we have requested is a unified view panel, so that we can see each of the instances in a unified view. That way, we won't have to go bouncing from instance to instance."
"The dashboard is somewhat clunky, which is the primary area I would want Link11 to improve."
"It would be beneficial if it had a workflow or a feature that could fine-tune settings based on high-level requirements."
"They have an interface that you have to adjust to. That is a bit of a downfall because I expect an interface to be very intuitive for someone who knows little about security. But if you know about security, the interface is wonderful."
"There is room for improvement in helping us understand session management."
"Up to now the only cons I could find is sometimes getting change management back on track, because it's a company that evolves, and sometimes I don't have the same needs that they have. But besides that, up until now, I am really pleased with their service and I've also recommended them to some of my clients."
"The WAF features are not as granular as we would expect from a WAF system. There should be more granularity and in-depth rules, out-of-the-box."
"Perhaps the automatic reporting could be better. I would like to have seen more automated reports."
"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 UI is not very intuitive and could be better."
"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."
 

Pricing and Cost Advice

"I believe that for the six instances we have right now, it's costing us $16,000 per month."
"On a monthly basis we pay $750."
"We found the cost to be a bit on the higher side, starting at approximately three to four thousand dollars for a small configuration."
"There is still some room for improvement when it comes to bot management from Reblaze because they are relatively new compared to other vendors in the town."
"The product has an affordable cost."
"Signal Sciences is pretty cheap compared to other solutions."
"The pricing is 50% less than Akamai."
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Comms Service Provider
12%
Construction Company
12%
Outsourcing Company
9%
Manufacturing Company
9%
Comms Service Provider
9%
Retailer
9%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise4
Large Enterprise2
No data available
 

Questions from the Community

What needs improvement with Reblaze?
The dashboard is somewhat clunky, which is the primary area I would want Link11 to improve. I wish that it was a little easier on the eyes, as green is a difficult color for me to see.
What is your primary use case for Reblaze?
My main use case for Link11 is to employ artificial intelligence to detect bot-driven attacks cybersecurity-wise, effectively. A specific example of how I have used Link11 to detect bot-driven atta...
What is your experience regarding pricing and costs for Signal Sciences?
The pricing is very competitive compared to other providers. The pricing is definitely a factor in our decision-making process.
What needs improvement with Signal Sciences?
We do use it, but the UI can be improved as we mostly work through the CI/CD. It provides support, but sometimes it is hard to navigate unless you are very familiar with it.
What is your primary use case for Signal Sciences?
The CDN is for caching and The Fastly Next-Gen WAF (powered by Signal Sciences) is for protecting the servers from malicious traffic. They both perform different jobs and serve different purposes, ...
 

Also Known As

Reblaze
Signal Sciences Next-Gen WAF, Signal Sciences RASP
 

Overview

 

Sample Customers

CBC, Hermes, Gartner
Chef, Adobe, Datadog, Etsy, GrubHub, Vimeo, SendGrid, Under Armour, Duo, AppNexus
Find out what your peers are saying about Link11 vs. The Fastly Next-Gen WAF (powered by Signal Sciences) and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.