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F5 Advanced WAF vs Fastly 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 Web Application ...
Sponsored
Ranking in Web Application Firewall (WAF)
6th
Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
26
Ranking in other categories
No ranking in other categories
F5 Advanced WAF
Ranking in Web Application Firewall (WAF)
2nd
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
71
Ranking in other categories
No ranking in other categories
Fastly
Ranking in Web Application Firewall (WAF)
22nd
Average Rating
8.8
Reviews Sentiment
6.3
Number of Reviews
9
Ranking in other categories
CDN (7th), Distributed Denial-of-Service (DDoS) Protection (10th)
 

Mindshare comparison

As of April 2026, in the Web Application Firewall (WAF) category, the mindshare of Cloudflare Web Application Firewall is 4.7%, down from 7.2% compared to the previous year. The mindshare of F5 Advanced WAF is 6.0%, down from 10.3% compared to the previous year. The mindshare of Fastly is 1.5%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
F5 Advanced WAF6.0%
Cloudflare Web Application Firewall4.7%
Fastly1.5%
Other87.8%
Web Application Firewall (WAF)
 

Featured Reviews

DB
CTO at PlayNirvana
Advanced security reporting has protected high-traffic betting platforms from constant attacks
I don't see room for improvement to Cloudflare Web Application Firewall. One thing I don't know much about because we have a dedicated IT team for that, and I'm not involved with Cloudflare much anymore. But if I were to compare them to F5, I would like to see more features that F5 offers. F5 has an option to bring the whole infrastructure, the whole WAF and all their packages, Bot Management, and everything else on your infrastructure. You need to install certain services from their side, and then you can choose if you would like requests to hit your servers immediately or if requests need to be proxied through F5 backbone. That would be a nice addition because we have 90% of the traffic as legit traffic coming from whitelisted servers. If it comes from whitelisted servers, I don't need to go every request through the backbone; I could easily just IP whitelist everything. Then I could maybe have Bot Management on my infrastructure that drastically reduces the price of Cloudflare. I would like to see Push CDN more improved in the next release of Cloudflare Web Application Firewall. And maybe something similar to Pushpin that Fastly has, which is an option where you can push messages that then can be scaled globally over the network. From our perspective, if we have a listener that listens for stock updates, I would just need to have one processor that pushes those updates to the Cloudflare API, and then Cloudflare would broadcast that message to all listeners. Cloudflare will check the order of the message, and if you, as a customer, are not connected or have some kind of network issue, when you reconnect, you will receive the latest state and missing updates.
Kallamuddin Ansari - PeerSpot reviewer
Cyber Security Consultant at ProTechmanize
Application security has protected critical banking services while policy learning minimizes false blocks
F5 Advanced WAF performs well overall, but I have noticed some points that could enhance the solution. Initially, policy tuning could be simpler, as while the learning engine is powerful, initial tuning still requires experienced engineers, which can be challenging for new teams due to the complexity of options and parameters. A more guided and simple tuning workflow would help reduce the learning curve. Additionally, tighter native integration with SIEM or SOAR tools would simplify correlation and investigations for security teams, although log exports are available. Overall, these are not blockers, merely enhancement opportunities, and once tuned, F5 Advanced WAF is very stable and reliable; improving usability, reporting, and onboarding would make it even more effective for larger environments.
PP
Technical support engineer at Adobe
Optimized ecommerce performance and improved access control through image handling and IP filtering
I believe that Fastly should provide guidelines for their WAF blocking rules. It should be public what the rules are that are blocking their contents. I believe Fastly should provide regional IP addresses instead of POP IPs. Fastly should provide features similar to Cloudflare regarding a block list. Additionally, a POP address should be there with a wide range of IP addresses provided, public static IP addresses, so customers can integrate egress IPs. Fastly should provide WebP image processing on the backend instead of on the fly. It would be a very useful feature to avoid unnecessary time for browser to browser and local cookies. I believe that Fastly service has a few gaps. We are not getting quick responses from Fastly technical support engineers. Sometimes they depend on their D3 developers. There should be transparency.

Quotes from Members

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

Pros

"In general, it's a very good product: the solution is very stable, the performance is great, the product offers very good scalability, the pricing is very reasonable, the installation is very straightforward and quite simple, and technical support has a very fast response time and is helpful."
"The rate limiting features and customizations in terms of URL match and applying policies are valuable to me."
"This is a good product; it's reliable and scales well."
"I'm highly satisfied. It's remarkably user-friendly, enabling me to quickly identify issues, and deploy solutions, and it offers the necessary features."
"We like that there's load balancing, firewall capabilities, DDoS protection, et cetera, all covered by Cloudflare."
"Technical support has a very fast response time and they are helpful."
"The initial setup process is simple."
"Some of the most valuable features of Cloudflare Web Application Firewall include its DNS zone setup and the zero trust policy."
"It's flexible and powerful, and the users can input their own rules to the system."
"Identification, ease of use, and ease of modifying it to most of our needs are valuable."
"Overall, F5 Advanced WAF is a strong, dependable enterprise solution that works best when seen as a long-term security platform rather than a quick add-on; once properly designed, sized, and tuned, it runs quietly in the background and effectively does its job without constant attention."
"I would recommend this solution to others who are interested in using it."
"As far as I am concerned, F5 Advanced WAF is one of the most stable solutions I've ever used, so it's good to implement."
"One of the most valuable features is the Local Traffic Manager."
"Feature-wise, they are always cutting edge and up-to-date. Many features aren't available via competitors. There's always a lot of enhanced critical features that just aren't available through anyone else, or, if they are, are too lightweight."
"This solution is an enterprise-class firewall that provides both load-balancing and security."
"Compute@Edge features are valuable to me."
"The product helps our organization to access sites located in different regions quickly."
"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."
"Fastly uses configuration versioning, where you can deploy a new version in less than one minute."
"Fastly provides CDN, WAF, image optimization, and IP restriction."
"In summary, this solution is easy to manage, quick to deploy, and all of my customers are happy."
"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."
"Its initial setup process is straightforward."
 

Cons

"We have noticed some latency when the call goes through the firewall. That could be improved."
"Support can be challenging at times."
"Cloudflare Web Application Firewall should improve visibility for a customer."
"The blocked logs are difficult to read at times."
"They have some limitations with third-party integrations."
"The dashboard could be more user-friendly."
"The solution's learning curve can still be further reduced"
"The ModSecurity core rules need to be updated."
"F5 Advanced WAF could improve resource usage, it is CPU intensive. Additionally, adding automated remediation would be a benefit. For example, an easy button alerts us of the events that are occurring, and what we want to do at the time. An automated approach where somebody could be alerted very quickly. Instead of going and reconfiguring everything, an automated approach is what I'm looking at."
"F5 needs to improve API protection with a single F5 solution, without requiring additional modules."
"It's a powerful tool yet can be complex for new users."
"They should work on the virtualization of NGINX."
"The reporting portion of F5 Advance WAF is not great. They need to work out something better, as it is very basic."
"The Sandbox integration feature could be improved."
"The solution should include protection against web page attacks like what is available in FortiWeb."
"Support is a little slow."
"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."
"The product should provide improved bot detection and management."
"We are not getting quick responses from Fastly technical support engineers. Sometimes they depend on their D3 developers."
"Support is not that great."
"The solution's pricing could be better."
"It's not easy to start with Fastly if you don't have VCL knowledge, so it appears very complex at the beginning."
"It is missing a "staging" platform to deploy a test configuration with all of the real settings, which would allow us to properly test before putting it into production."
"Fastly's customer service area needs improvement."
 

Pricing and Cost Advice

"The annual licensing fee is $10,000 USD."
"We pay $210 per month for CloudFlare WAF."
"It starts at $20 and can easily go up to $200 monthly"
"It is not too pricey."
"Cloudflare offers different types of subscriptions for businesses, enterprises, and personal users, and the pricing is negotiable."
"What's my experience with pricing, setup cost, and licensing? I believe the pricing is not the best, but it's reasonable and acceptable. We also use the McAfee system in parallel. In terms of pricing, its okay - not great, but not bad either. It falls in the middle, which is acceptable. In terms of support licensing, last time, we were searching for a solution, and we considered products from resellers rather than directly from the cloud provider. However, the pricing we encountered was exceptionally high. As a result, we are inclined to select support from the reseller."
"The solution's pricing option needs to be more transparent for enterprise clients."
"The solution is expensive."
"It is expensive. Its price should be better. Its licensing is on a yearly basis. Its licensing is also based on the model. There are no additional costs."
"I would rate the pricing as seven out of ten"
"The pricing of F5 Advanced WAF is more expensive than other solutions like Radware and CD18, it is quite high."
"It's more expensive than other solutions and depending on the modules, there can be additional fees."
"F5 Advanced WAF is not a cost-effective solution. Although they are attempting to reduce prices with their VE and cloud options, they are more expensive than other solutions. The solution is more expensive on average."
"The price of the solution is reasonable when compared with other products, such as FortiWeb. I am very satisfied with the price."
"I don't have any issue with the pricing of this solution."
"It is a little bit costly, but it has all the features that are required."
"You need to pay a premium price for the tool."
"In my opinion, Fastly is priced competitively."
"The solution is cheaper than other products in the market."
"It is an expensive solution."
"The pricing has been very competitive."
"I've generally found Fastly to be very competitive in pricing, especially around Compute@Edge."
"Fastly is less expensive than one of its competitors."
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Top Industries

By visitors reading reviews
Construction Company
17%
Financial Services Firm
9%
Comms Service Provider
8%
Computer Software Company
8%
Financial Services Firm
15%
Computer Software Company
10%
Government
8%
Comms Service Provider
8%
Comms Service Provider
12%
Financial Services Firm
11%
Computer Software Company
8%
Healthcare Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise6
Large Enterprise6
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise15
Large Enterprise31
By reviewers
Company SizeCount
Small Business5
Large Enterprise5
 

Questions from the Community

What needs improvement with Cloudflare Web Application Firewall?
I don't see room for improvement to Cloudflare Web Application Firewall. One thing I don't know much about because we...
What is your primary use case for Cloudflare Web Application Firewall?
We are using Cloudflare Web Application Firewall's advanced reporting and analytics tools with their Zero Trust, so e...
What do you like most about F5 Advanced WAF?
It's a fairly easy-to-use and user-friendly tool. My administrators and team also like its ability to customize the r...
What is your experience regarding pricing and costs for F5 Advanced WAF?
The pricing for F5 Advanced WAF is a bit higher, but not that high. I would say for a good amount of revenue-generati...
What needs improvement with F5 Advanced WAF?
On the features I wish existed, Big-IP Advanced WAF is primarily an on-premises solution and in that solution, there ...
What needs improvement with Fastly?
I believe that Fastly should provide guidelines for their WAF blocking rules. It should be public what the rules are ...
What is your primary use case for Fastly?
I am using Fastly in the Adobe Commerce Cloud project. In this project, it is working as a reverse proxy for CDN and ...
 

Also Known As

Cloudflare WAF
No data available
No data available
 

Overview

 

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk
MAXIMUS, Vivo, American Systems, Bangladesh Post Office, City Bank
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 F5 Advanced WAF vs. Fastly and other solutions. Updated: April 2026.
890,071 professionals have used our research since 2012.