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Fastly vs Fortinet FortiDDoS comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 5, 2024

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

Fastly
Ranking in Distributed Denial-of-Service (DDoS) Protection
11th
Average Rating
8.6
Reviews Sentiment
6.5
Number of Reviews
11
Ranking in other categories
CDN (6th), Web Application Firewall (WAF) (25th)
Fortinet FortiDDoS
Ranking in Distributed Denial-of-Service (DDoS) Protection
14th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
15
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Fastly is 3.6%, up from 2.6% compared to the previous year. The mindshare of Fortinet FortiDDoS is 2.1%, down from 2.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
ProductMindshare (%)
Fastly3.6%
Fortinet FortiDDoS2.1%
Other94.3%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

Pranay Jain - PeerSpot reviewer
Senior software engineer at Simplify vms
Edge caching has transformed response times and delivers faster candidate data globally
Fastly can be improved in certain areas such as VCL, which is powerful but has a steep learning curve for normal users. A more user-friendly, UI-based configuration could simplify the experience, alongside better templates for common use cases and dashboard improvements, as the current dashboard feels complex for beginners, and pricing can be hard to predict for smaller companies. I chose 8 out of 10 because it has excellent performance and low latency delivery, making it suitable for larger applications, with strong Edge Caching and instant purging capabilities. However, VCL complexity and pricing predictability, especially for smaller companies, along with a user-friendly dashboard are areas impacting my score.
MO
IT Analyst at Evapco, Inc.
Reliable protection and smooth setup enhance company security
Currently, I have two firewalls, with one located in Sorocaba, model 90D, and the other in São Paulo, model 30D. They are connected by VPN. I use the firewalls for VPN and final protection for my company, and my equipment is maintained by an internet company called Multiprox The equipment works…

Quotes from Members

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

Pros

"Fastly provides CDN, WAF, image optimization, and IP restriction."
"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."
"Initially, we faced load time issues, but after deploying Fastly and optimizing our queries, we achieved a response time cut to less than 1 millisecond from an initial 3 to 4 seconds."
"Fastly uses configuration versioning, where you can deploy a new version in less than one minute."
"Fastly has positively impacted my organization by helping to obtain better solutions in less time and in a much more traceable way."
"Compute@Edge features are valuable to me."
"Its initial setup process is straightforward."
"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."
"This solution can protect Layer 3, Layer 4 and Layer 7 attacks of applications for us, and this is important."
"The solution is very user-friendly and very easy to use."
"It allows me to see all the traffic on my network."
"The product's initial setup phase was really easy."
"It is a user-friendly product in terms of monitoring and updating policies."
"The protection resources and the support are valuable features of the solution."
"The most valuable feature is the cloud DDoS scrubbing capability."
"We use it to protect our users and their data."
 

Cons

"The solution's pricing could be better."
"Another downside of Fastly is that when we wanted to migrate our API domains, it's lacking the WebSocket protocol."
"Fastly's customer service area needs improvement."
"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."
"Fastly can be improved in certain areas such as VCL, which is powerful but has a steep learning curve for normal users."
"It's not easy to start with Fastly if you don't have VCL knowledge, so it appears very complex at the beginning."
"We are not getting quick responses from Fastly technical support engineers. Sometimes they depend on their D3 developers."
"Support is not that great."
"I would like to see analytics, big data."
"The primary area for improvement is the on-premises capacity limit, currently fixed at 10 GB."
"The solution can be a little more user-friendly and it can be more affordable."
"Technical support isn't too good with Fortinet. They could be more responsive and helpful overall."
"The initial setup is complex. It is always complex."
"The product’s pricing needs improvement."
"I find that there have been issues in the past year with the solution hanging. It freezes often."
"All those thresholds that need to be configured should be included in the default so that user will not forget or misconfigure."
 

Pricing and Cost Advice

"In my opinion, Fastly is priced competitively."
"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."
"The pricing has been very competitive."
"It is an expensive solution."
"It's quite pricey."
"The product’s pricing needs improvement."
"The solution is reasonably priced."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Outsourcing Company
11%
Manufacturing Company
10%
Comms Service Provider
7%
Comms Service Provider
13%
Financial Services Firm
11%
Government
7%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Large Enterprise7
By reviewers
Company SizeCount
Small Business10
Large Enterprise6
 

Questions from the Community

What is your experience regarding pricing and costs for Fastly?
In terms of price, I find it good, and as I mentioned, the implementation cost had some difficulty at the beginning due to the learning curve.
What needs improvement with Fastly?
I think Fastly could improve by improving the documentation and having some code examples so that it is easier for developers, since at the beginning it becomes a bit complicated.
What is your primary use case for Fastly?
My primary use case for Fastly is using it as a CDN to speed up my customers' access to the applications. A specific example of how Fastly has helped improve my customers' access to the application...
Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
Arbor would be the best bid, apart from Arbor, Palo Alto and Fortinet have good solutions. As this is an ISP, I would prefer Arbor.
What is your experience regarding pricing and costs for Fortinet FortiDDoS?
Fortinet FortiDDoS offers lower costs compared to other solutions. The licensing costs are annually renewed.
What needs improvement with Fortinet FortiDDoS?
There is a need for more features that protect personal information, especially given the PDP issue in Indonesia.
 

Also Known As

No data available
Fortinet DDoS, FortiDDos
 

Overview

 

Sample Customers

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
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Find out what your peers are saying about Fastly vs. Fortinet FortiDDoS and other solutions. Updated: September 2026.
920,769 professionals have used our research since 2012.