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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

"Cloudflare is cheaper compared to Azure WAF, which I have considered before."
"Very glad the WAF rulesets works out of box, and requires very little tuning or maintenance."
"The impact of Cloudflare Web Application Firewall's integration with existing web technologies on our site's performance and security measures is quite great, actually."
"For us, the key feature of Cloudflare is DDoS protection and IP hiding, especially since we are a crypto company."
"I have not had any issues with this solution, and I would recommend it to others who are interested in using it."
"The product has a valuable security control functionality."
"There is a huge signature repository"
"The stability of Cloudflare Web Application Firewall deserves a perfect 10 out of 10."
"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."
"There is no need to worry about updating signatures because WAF will automatically update the signatures for you."
"It's flexible and powerful, and the users can input their own rules to the system."
"The AOF solution provides numerous security features."
"The solution isn't too expensive. The license allows you to license what you need and leave out what you don't need."
"One of the most valuable features is the Local Traffic Manager."
"There are a lot of good features."
"The most valuable features of F5 Advanced WAF are the easy identification of events and customization. We can pinpoint our settings."
"Rate limiting is a good feature that protects from volumetric attacks."
"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."
"Compute@Edge features are valuable to me."
"The product helps our organization to access sites located in different regions quickly."
"In summary, this solution is easy to manage, quick to deploy, and all of my customers are happy."
"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."
"Its initial setup process is straightforward."
 

Cons

"It would be ideal if the solution offered better log integration and more integration with different platforms."
"The product can improve by having more multitenancy capability, which is currently not available."
"The product can improve by having more multitenancy capability, which is currently not available."
"The learning curve was steep initially."
"The solution's learning curve can still be further reduced"
"We don't even use Cloudflare Bot Management because it's too expensive; you need to pay per request, and it's much cheaper to get one or two additional machines."
"The notification part could be improved. It's very much connected to Web Application Firewall, rate-limiting, and DDoS protection."
"The user interface is very simple and straightforward, but users need knowledge about DNS to accomplish tasks."
"F5 Advanced WAF could improve the precision of the scanning. There are many false positives."
"The BNS module needs improvement."
"The reporting portion of F5 Advance WAF is not great. They need to work out something better, as it is very basic."
"The solution could improve by having an independent capture module. It has a built feature that you can deploy the capture on your published website, however, it's not very user-friendly."
"F5 Advanced WAF is not a cost-effective solution."
"The overall price of F5 Advanced WAF could improve."
"Although we're getting some reports, we're not getting all the reports we need. There seems to be a gap in report management."
"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."
"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."
"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."
"Fastly's customer service area needs improvement."
"What I don't like about Fastly is that they charge a heavy price."
"Support is not that great."
"The solution's pricing could be better."
"The product should provide improved bot detection and management."
 

Pricing and Cost Advice

"It is not too pricey."
"The annual licensing fee is $10,000 USD."
"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 pricing model is very straightforward compared to the competition. You just pay per month for the product and usage."
"We pay $210 per month for CloudFlare WAF."
"It starts at $20 and can easily go up to $200 monthly"
"The solution's pricing option needs to be more transparent for enterprise clients."
"Cloudflare offers different types of subscriptions for businesses, enterprises, and personal users, and the pricing is negotiable."
"Pricing for this solution is higher than average."
"The pricing is too high."
"There is an annual subscription for this solution."
"There are different licenses available to use F5 Advanced WAF, such as BT, ASM, and LPM."
"The cost is slightly above average."
"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."
"There is a perpetual license that comes with your hardware. There is also an additional fee for support."
"The pricing for F5 Advanced WAF is comparable to a Rolls-Royce. Its price is a bit high when you compare it with other vendors. F5 Advanced WAF is a bit expensive. The customer was on a three-year plan and it was around $560,000."
"You need to pay a premium price for the tool."
"It is an expensive solution."
"I've generally found Fastly to be very competitive in pricing, especially around Compute@Edge."
"The solution is cheaper than other products in the market."
"The pricing has been very competitive."
"In my opinion, Fastly is priced competitively."
"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.
890,088 professionals have used our research since 2012.