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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
Sponsored
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
77
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (12th)
F5 Advanced WAF
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
69
Ranking in other categories
Web Application Firewall (WAF) (1st)
Fastly
Average Rating
8.8
Reviews Sentiment
6.3
Number of Reviews
9
Ranking in other categories
CDN (8th), Web Application Firewall (WAF) (18th), Distributed Denial-of-Service (DDoS) Protection (11th)
 

Featured Reviews

Carlos Alam Hernandez Baruch - PeerSpot reviewer
Fast and secure deployments simplify operations for government and fintech clients
It is a fast and secure DNS. It is very easy to deploy, and my customers are happy with this tool. Additionally, the CDN performance in Mexico is excellent, providing fast service and tools. It offers reliability during high-traffic periods, ensuring no impact on the environment. It helps my clients avoid using on-premise boxes, simplifying operations as they only use the prices on Cloudflare.
Ahmed Moamen - PeerSpot reviewer
Protects applications with versatile authentication features
F5 offers a versatile solution that can be integrated with APM in cases where integration with an external IDB is needed. It is useful for authentication backup if the on-prem directory service is unavailable. Additionally, its WAF functionality is valuable for protecting applications from attacks. It is a versatile and strong solution that's easy to understand and deploy.
Nick Wilsdon - PeerSpot reviewer
An easily scalable and stable product that provides exceptional support
The product should provide improved bot detection and management. The product should also provide support for code management. Everybody working in CDN is currently looking for ways to better manage code deployment with various authorization levels and synchronization with our lower environments. Matching up what's happening in CDN with what's happening on the origin regarding testing would always be useful.

Quotes from Members

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

Pros

"The most valuable feature is its usability."
"The most valuable feature of Cloudflare is that it has a free version. They give us the free version with the anti-DDoS features and also the load balancing solution."
"Easier http to https redirect using page rules"
"The tool is user-friendly."
"DDoS attacks target unprotected machines. Cloudflare detects and stops these attacks using internal systems. It identifies incoming DDoS attacks, issuing challenges or blocking them immediately."
"The attacker won't have details since my public IP is anonymous. It offers us good privacy."
"I rate its stability a ten out of ten."
"It is a fast and secure DNS."
"I like all of the features, but the main one is the attack signatures."
"It ensures compliance with security standards by providing features like PCI DSS checks."
"F5's user-friendly interface and seamless integration stand out as the most valuable features for us."
"F5 Advanced WAF has very good stability and scalability. Its initial setup was straightforward."
"F5 Advanced WAF offers features not available in other products."
"The most valuable features of this solution are the WAF protection, Data Safe, and the seven-layer DDoS."
"I definitely recommend this solution because of the time you save on analysis."
"F5 technical support is excellent. They are experts who always provide the right solution, and they understand the problem. Their response and resolution times are good."
"Rate limiting is a good feature that protects from volumetric attacks."
"The product's initial setup phase is straightforward."
"Fastly uses configuration versioning, where you can deploy a new version in less than one minute."
"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."
"Fastly provides CDN, WAF, image optimization, and IP restriction."
"The product helps our organization to access sites located in different regions quickly."
"Its initial setup process is straightforward."
"Compute@Edge features are valuable to me."
 

Cons

"Even if I wanted to, I wouldn't be able to buy Cloudflare in my country."
"Cloudflare's free plan is limited to 5,000 records for their free plan. They should increase that. For example, if I create a domain called abc.com and a subdomain called a.abc.com, my record count will be two. I can make a maximum of 5,000 subdomains. However, if we use our own DNS hosted on another provider, there is no limit. Their free plan also lacks name server customization."
"Cloudflare doesn't have a reverse lookup. We can only do a DNS lookup to get the IP address from the hostname. It doesn't work if you want to look up the hostname from an IPA address."
"The integration of LLMs on the dashboard is something that is needed in the tool."
"In the last two years, there has been a certain amount of downtime when using the VDM."
"We're facing challenges due to an upgrade in the machine learning model. The problem arises from some users abusing the APIs, resulting in an influx of suspicious traffic. Cloudflare's learning model mistakenly identifies this traffic as human. Consequently, it assigns it a higher trust score, akin to legitimate human traffic, causing complications in our architecture. Previously, such traffic would have been categorized as suspicious, enabling us to apply appropriate blocking rules. However, we encounter difficulties distinguishing between genuine and suspicious traffic with the new categorization. Despite these challenges, overall, Cloudflare remains the preferred solution compared to Azure, AWS CloudFront, and Google Cloud Armor."
"Integration involving API with other products could be more user-friendly."
"We are a product integrator and reseller, and we would like to have a better partner relationship, similar to a channel sales relationship. Sometimes we are on our own or get diverted by Cloudflare because they have direct sales, which competes with us and makes it difficult to build a relationship with this company since we want to be an MSP or a managed service provider for the solution."
"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."
"The accuracy of the automatic learning feature needs improvement."
"Most customers encounter stability issues with the product's Big-IP logs."
"Support is a little slow."
"There are opportunities for improvement in updating the user interface to a more modern look."
"The Sandbox integration feature could be improved."
"They should work on the virtualization of NGINX."
"People who want to work with the device have to be pro in Linux"
"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."
"The solution's pricing could be better."
"Support is not that great."
"We are not getting quick responses from Fastly technical support engineers. Sometimes they depend on their D3 developers."
"What I don't like about Fastly is that they charge a heavy price."
"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's customer service area needs improvement."
"The product should provide improved bot detection and management."
 

Pricing and Cost Advice

"We don't have any issues with the price."
"That is one of the great features. I was able to access the majority of the features and services for free."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."
"The product's pricing is minimal compared to other products."
"We are using the free version."
"The pricing for the service is reasonable, neither excessively cheap nor prohibitively expensive. It aligns well with the value of their solution."
"The product's pricing is cheap."
"There is an annual subscription for this solution."
"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."
"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."
"The price of F5 Advanced WAF could improve it is expensive."
"There is a perpetual license that comes with your hardware. There is also an additional fee for support."
"F5 bundles up services and the bundle is what you pay for rather than individual components."
"F5 Advanced WAF pricing structure should be adjusted to meet the need of small to medium-sized companies."
"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."
"It is an expensive solution."
"The pricing has been very competitive."
"Fastly is less expensive than one of its competitors."
"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."
"You need to pay a premium price for the tool."
"In my opinion, Fastly is priced competitively."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Computer Software Company
15%
Financial Services Firm
14%
Government
8%
Comms Service Provider
7%
Computer Software Company
13%
Financial Services Firm
11%
Comms Service Provider
10%
Retailer
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business25
Midsize Enterprise14
Large Enterprise29
By reviewers
Company SizeCount
Small Business5
Large Enterprise5
 

Questions from the Community

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
Cloudflare. We are moving from Akamai prolexic to Cloudflare. Cloudflare anycast network outperforms Akamai static GR...
Which would you choose - Cloudflare DNS or Quad9?
Cloudflare DNS is a very fast, very reliable public DNS resolver. It is an enterprise-grade authoritative DNS service...
What do you like most about Cloudflare?
Cloudflare offers CDN and DDoS protection. We have the front end, API, and database in how you structure applications.
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 needs improvement with F5 Advanced WAF?
I do not have anything in mind right now that needs improvement. Generally, it works well. If we need any specific fe...
What do you like most about Fastly?
Support is good; the product works as advertised. We have a Slack connection with them. So we can basically ask for h...
What needs improvement with Fastly?
Fastly has POPs with huge servers across the world, so it works effectively everywhere except the mainland China regi...
 

Also Known As

Cloudflare DNS
No data available
No data available
 

Overview

 

Sample Customers

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.
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: September 2025.
870,623 professionals have used our research since 2012.