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A10 Thunder TPS vs Fastly 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:
 

ROI

Sentiment score
6.8
A10 Thunder TPS reduced support tickets, improved satisfaction, and saved costs, acting like insurance against significant revenue losses.
Sentiment score
6.0
Fastly boosts return on investment with improved performance, reduced latency, and cuts infrastructure costs by 40-60%.
Reducing infrastructure costs by 40 to 60% because Edge Caching minimizes backend traffic, resulting in lower computing costs.
Senior software engineer at Simplify vms
I have seen a return on investment, particularly in time savings, especially regarding the changes.
Cloud architect at a tech vendor with 10,001+ employees
 

Customer Service

Sentiment score
7.0
A10 Thunder TPS support is praised for timely responses, effective resolutions, proactive fixes, and handling complex issues efficiently.
Sentiment score
6.3
Fastly's customer care is efficient with multi-channel support, but has inconsistencies in response times and transparency across time zones.
The technical support was quick and accepted my requests.
Information Technology Security Engineer at a tech services company with 11-50 employees
demonstrating the team's technical expertise in CDN and Edge architecture
Senior software engineer at Simplify vms
We have SLAs defined because we opted for enterprise support pricing.
Staff Engineer at a retailer with 1,001-5,000 employees
I would describe Fastly's customer support as fast and efficient when I have had to use it.
Cloud architect at a tech vendor with 10,001+ employees
 

Scalability Issues

Sentiment score
6.9
A10 Thunder TPS provides scalable, flexible defenses for global data centers, supporting large traffic volumes for medium-sized enterprises.
Sentiment score
6.4
Fastly is praised for scalability, ease of growth support, cloud flexibility, excellent support, and successful global integrations.
Without accessible documentation, setting up can be time-consuming.
Information Technology Security Engineer at a tech services company with 11-50 employees
Seamlessly handling massive traffic without requiring backend changes due to its globally distributed Edge network and stateless API-driven design.
Senior software engineer at Simplify vms
 

Stability Issues

Sentiment score
8.2
The A10 Thunder TPS offers consistent stability, high availability, and positive user feedback, with reliability enhancements and successful maintenance.
Sentiment score
7.3
Fastly is stable and reliable with high uptime, no technical issues, and strong performance in enterprise applications.
Highly reliable for enterprise-scale applications with high uptime guarantees.
Senior software engineer at Simplify vms
 

Room For Improvement

A10 Thunder TPS needs better training, smoother upgrades, improved documentation, and enhanced synchronization, with concerns over UI and virtual training.
Fastly requires improvements in China presence, configuration complexity, pricing, customer support, security features, documentation, and bot detection.
We had to find workarounds for issues like A10 blocking necessary traffic, sometimes leading to decreased security.
Information Technology Security Engineer at a tech services company with 11-50 employees
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.
Senior software engineer at Simplify vms
Fastly could improve by improving the documentation and having some code examples.
Cloud architect at a tech vendor with 10,001+ employees
Fastly should provide features similar to Cloudflare regarding a block list.
Technical support engineer at Adobe
 

Setup Cost

Enterprise buyers find A10 Thunder TPS pricing mixed, highlighting both value and expense, with multiyear deals as beneficial.
Fastly is competitively priced with usage-based costs and customizable options, but some find it expensive with a learning curve.
The global price list is not accessible, making it difficult to work.
Information Technology Security Engineer at a tech services company with 11-50 employees
It operates on a pay-as-you-go structure, but costs scale with traffic, requiring monitoring to avoid unexpected spikes based on data transfers and the number of requests handled.
Senior software engineer at Simplify vms
In terms of price, I find it good.
Cloud architect at a tech vendor with 10,001+ employees
 

Valuable Features

A10 Thunder TPS excels in traffic filtering, DDoS mitigation, load balancing, and offers programmable automated defense with RESTful API.
Fastly CDNs integrate with Signal Sciences WAF for efficient content delivery, enhancing performance with global edge locations and code management.
The vendor indicated that Thunder would not be supported, but I was able to add Thunder to the central console management.
Information Technology Security Engineer at a tech services company with 11-50 employees
We observed a 30 to 50% reduction in response time and a significant reduction in backend load of 40 to 60%, improving visibility through a real-time dashboard for monitoring traffic, errors, and performance.
Senior software engineer at Simplify vms
We have improvements in traceability by having the changes integrated into the Git repositories and having the possibility of doing a rollback in the event of any problem in a very simple way.
Cloud architect at a tech vendor with 10,001+ employees
In this project, it is working as a reverse proxy for CDN and WAF, web application firewall, additionally image optimization.
Technical support engineer at Adobe
 

Categories and Ranking

A10 Thunder TPS
Ranking in Distributed Denial-of-Service (DDoS) Protection
21st
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
15
Ranking in other categories
No ranking in other categories
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 (7th), Web Application Firewall (WAF) (25th)
 

Mindshare comparison

As of September 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of A10 Thunder TPS is 1.6%, down from 2.0% compared to the previous year. The mindshare of Fastly is 3.7%, up from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
ProductMindshare (%)
Fastly3.7%
A10 Thunder TPS1.6%
Other94.7%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

reviewer1126782 - PeerSpot reviewer
Information Technology Security Engineer at a tech services company with 11-50 employees
Management console adds value and technical support delivers timely solutions
I had issues with the user interface because, when putting settings up, the system asked me for strange things like virtual local networks that I didn't create. For example, I set an NTP server, and after some clicks, a message appeared stating 'setup is incorrect'. It asked for a VLAN even though no VLANs were created. We had to find workarounds for issues like A10 blocking necessary traffic, sometimes leading to decreased security, because it was the simplest way to deal with them. This was a real issue. A more flexible policy for demo licenses would also be helpful.
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.
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Top Industries

By visitors reading reviews
Comms Service Provider
31%
Financial Services Firm
11%
Outsourcing Company
9%
Construction Company
8%
Comms Service Provider
13%
Financial Services Firm
11%
Outsourcing Company
10%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise4
Large Enterprise6
By reviewers
Company SizeCount
Small Business6
Large Enterprise7
 

Questions from the Community

What is your experience regarding pricing and costs for A10 Thunder TPS?
I have not seen specific prices, like $10,000 or $20,000. A frustrating aspect is the lack of demo versions. The vendor insists on commercial licenses despite requests for demo licenses. The global...
What needs improvement with A10 Thunder TPS?
I had issues with the user interface because, when putting settings up, the system asked me for strange things like virtual local networks that I didn't create. For example, I set an NTP server, an...
What is your primary use case for A10 Thunder TPS?
Currently, I have a test setup. A10 Thunder TPS ( /products/a10-thunder-tps-reviews ) works in a chain with a Check Point firewall and a Juniper MX router. Recently, we had a presentation from a ve...
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...
 

Comparisons

 

Overview

 

Sample Customers

DDoS defense solution trusted for more than 200 service providers, online gaming, and enterprises including; Bungie, Comcast, KDDI Corporation, Leaseweb, Microsoft Azure, NTT Docomo, Softbank, Turkcell Superonline, Verizon 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
Find out what your peers are saying about A10 Thunder TPS vs. Fastly and other solutions. Updated: September 2026.
913,806 professionals have used our research since 2012.