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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)
5th
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)
3rd
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
72
Ranking in other categories
No ranking in other categories
Fastly
Ranking in Web Application Firewall (WAF)
20th
Average Rating
8.6
Reviews Sentiment
6.4
Number of Reviews
10
Ranking in other categories
CDN (7th), Distributed Denial-of-Service (DDoS) Protection (9th)
 

Mindshare comparison

As of May 2026, in the Web Application Firewall (WAF) category, the mindshare of Cloudflare Web Application Firewall is 4.7%, down from 7.1% compared to the previous year. The mindshare of F5 Advanced WAF is 5.3%, down from 10.3% compared to the previous year. The mindshare of Fastly is 1.7%, up from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
F5 Advanced WAF5.3%
Cloudflare Web Application Firewall4.7%
Fastly1.7%
Other88.3%
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.
reviewer2797602 - PeerSpot reviewer
Senior Security Systems Engineer at a tech services company with 11-50 employees
Granular security policies have protected critical applications and ensure safe user and admin access
Improvements could be made regarding the log information from the backend CLI. There are enhancements needed; if a request gets blocked on the TCP layer, there should be traces or data to verify which source generated these requests, including the source and port information for initiation. These data are missing from F5 Advanced WAF. Besides that, another improvement could be refining the bot detection to minimize false positives; it should be able to verify more granularly between legitimate and non-legitimate clients. Overall, I find everything else good. A wish list feature I have is for the Technical Assistance Center (TAC) to respond more promptly. Their response time needs improvement; while they do not take excessive time, it can be enhanced, especially given it is a security product.
Pranay Jain - PeerSpot reviewer
Senior software developer at Simplifyvms
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.

Quotes from Members

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

Pros

"This is a good product; it's reliable and scales well."
"I have not had any issues with this solution, and I would recommend it to others who are interested in using it."
"Cloudflare is cheaper compared to Azure WAF, which I have considered before."
"Caching is the most valuable feature of Cloudflare Web Application Firewall."
"Cloudflare has positively impacted my organization by making it easier for me to handle and set up DNS for multiple clients; I can easily go in and access their accounts, make changes they need, and it's a one-stop shop."
"For us, the key feature of Cloudflare is DDoS protection and IP hiding, especially since we are a crypto company."
"It is a SaaS solution unlike much of the competition."
"The most valuable part of the solution for us overall is exactly that it is a Software-as-a-Service product."
"It's flexible and powerful, and the users can input their own rules to the system."
"Good dashboard and reporting."
"Web attack signatures are very important for detecting web attacks."
"The product is used to secure web applications and has the ability to use API templates and bot protection features, such as blocking requests or presenting CAPTCHA pages to end users."
"I would recommend this solution; it would be the best solution for WAF."
"F5 Advanced WAF secures our connectivity and combines both the main functions of WAF (balancing and web application security)."
"Despite a few issues, F5 Advanced WAF is performing well for me."
"It is a versatile and strong solution that's easy to understand and deploy."
"The product helps our organization to access sites located in different regions quickly."
"Rate limiting is a good feature that protects from volumetric attacks."
"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."
"Compute@Edge features are valuable to me."
"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."
"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."
 

Cons

"The rate limiting functionality could be enhanced, as we find it somewhat limited."
"Its stability could be better."
"The platform's control features related to real-time authentication and response time need improvement."
"They have some limitations with third-party integrations."
"The accuracy of the Cloudflare Web Application Firewall could be improved by reducing the number of false-negative alerts."
"Cloudflare Web Application Firewall should improve visibility for a customer."
"I have experienced some difficulties with Cloudflare's support as a customer based in India."
"It would be ideal if the solution offered better log integration and more integration with different platforms."
"The delay times on firmware patches and software updates could be better and improved."
"The tool needs to improve its pricing."
"We get false positives sometimes."
"Truthfully, they can improve a bit. Sometimes you get an engineer who is absent for two, three days and you have to call them and change engineers because the first one is not responding."
"All features of Advanced WAF offer numerous functions, which means tuning configuration is not simple."
"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."
"The BIG-IQ is supposed to centralize the management for all of the boxes but it's not very effective."
"The solution is tedious. It takes a lot of discrete settings so one needs to get detailed and granular when they use the solution. It takes you a whole lot of energy and concentration to configure. It needs to be much more straight-forward, like other web solutions."
"Fastly can be improved in certain areas such as VCL, which is powerful but has a steep learning curve for normal users."
"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."
"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."
"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."
"Support is not that great."
"What I don't like about Fastly is that they charge a heavy price."
 

Pricing and Cost Advice

"We pay $210 per month for CloudFlare WAF."
"It is not too pricey."
"The annual licensing fee is $10,000 USD."
"The solution is expensive."
"The pricing model is very straightforward compared to the competition. You just pay per month for the product and usage."
"The solution's pricing option needs to be more transparent for enterprise clients."
"It starts at $20 and can easily go up to $200 monthly"
"Cloudflare offers different types of subscriptions for businesses, enterprises, and personal users, and the pricing is negotiable."
"I don't have any issue with the pricing of this solution."
"F5 Advanced WAF technical support comes at a cost, and it's expensive."
"The price of F5 Advanced WAF could improve it is expensive."
"Licensing fees for this solution are paid on a yearly basis."
"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."
"Its price is fair. We have done a couple of deals where they were able to give some kind of discount to the customers. The price was initially high for the customers, but after a couple of negotiations, it came within their budget. They were happy with that."
"The way we deployed it, I would rate it a four out of five in terms of pricing."
"The pricing of F5 Advanced WAF is more expensive than other solutions like Radware and CD18, it is quite high."
"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."
"It is an expensive solution."
"Fastly is less expensive than one of its competitors."
"In my opinion, Fastly is priced competitively."
"The pricing has been very competitive."
"The solution is cheaper than other products in the market."
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Top Industries

By visitors reading reviews
Construction Company
17%
Comms Service Provider
9%
Financial Services Firm
9%
Manufacturing Company
7%
Financial Services Firm
15%
Computer Software Company
10%
Comms Service Provider
8%
Government
8%
Comms Service Provider
12%
Financial Services Firm
10%
Computer Software Company
9%
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 Business27
Midsize Enterprise16
Large Enterprise31
By reviewers
Company SizeCount
Small Business6
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 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 is your primary use case for F5 Advanced WAF?
My main use case for F5 Advanced WAF is providing deployment solutions for financial institutions and onboarding thei...
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.
894,998 professionals have used our research since 2012.