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Cloudflare vs Zscaler Internet Access comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 20, 2025

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
7.0
Cloudflare improves speed, security, and stability, leading to significant financial benefits with an ROI of 318% for businesses.
Sentiment score
7.5
Zscaler Internet Access offers cost and complexity reduction, improved security, and quick ROI, especially for SMBs, despite regional challenges.
WordPress security can be tricky, and that's where Cloudflare can be absolutely helpful for small businesses.
For the small project I was working on, using the basic tier provided a huge improvement at zero cost.
The managed service aspect of Zscaler Internet Access has allowed for reduced staffing costs, resulting in a saving of approximately 20-25% compared to prior expenses.
 

Customer Service

Sentiment score
7.2
Cloudflare's support is praised for responsiveness, though non-paying users and regions without local offices face challenges.
Sentiment score
7.1
Zscaler Internet Access support is strong and responsive, though some users seek quicker resolutions and better online resources.
This would help us address issues promptly, especially during unforeseen events like DDoS attacks.
Cloudflare does not offer hands-on technical support to fix customer problems but rather a self-service model.
The key factor is the language in which the support is offered, which, in this case, is in Thai.
The technical support for Zscaler Internet Access is rated around seven out of ten due to some response time issues and the engagement model.
I find customer support to be quite adequate
 

Scalability Issues

Sentiment score
8.2
Cloudflare efficiently handles increased traffic and growth, offering scalability, robust network performance, and seamless expansion for enterprises.
Sentiment score
7.9
Zscaler Internet Access is highly scalable, cloud-based, and supports large user volumes with positive feedback on integration and performance.
It is a SaaS tool, but the fact that they have workloads deployed across the world proves that it is a highly scalable tool.
The tool offers very good performance, even during high-traffic periods.
I rate the solution’s scalability an eight out of ten.
I find Zscaler Internet Access to be highly scalable, which was one of the reasons for choosing it.
Zscaler Internet Access is scalable and has points of presence across the globe to ensure low latency and reliable connections.
 

Stability Issues

Sentiment score
7.7
Cloudflare is generally stable and reliable, but occasional issues with downtime, speed, and DDoS protection are reported.
Sentiment score
7.7
Zscaler Internet Access offers stable performance globally, though regions like China and South Africa occasionally face latency challenges.
For DDoS protection, I would not recommend Cloudflare.
I rate the solution’s stability an eight out of ten.
The service is very stable with no impacts during high-traffic periods.
Zscaler Internet Access is stable and capable of building resilient architectures.
Zscaler Internet Access is very stable, and I would rate its stability as nine out of ten.
 

Room For Improvement

Cloudflare needs analytics, threat insights, improved support, user-friendly dashboards, and simplified pricing, with consistent caching and security features.
Zscaler Internet Access needs better integration, user-friendly features, improved support, and competitive pricing to enhance user experience.
There's a need for improvement in areas like AI-based DDoS attacks and Layer 7 WAF features.
Despite these challenges, overall, Cloudflare remains the preferred solution compared to Azure, AWS CloudFront, and Google Cloud Armor.
Cloudflare should add more documentation and pricing to the cloud version.
The response time and engagement model for technical support could be improved to handle complex outages more efficiently.
One feature I am missing is the ability to connect automatically to internal monitoring systems.
 

Setup Cost

Cloudflare offers flexible pricing with plans for small businesses to enterprises, balancing cost with comprehensive features and protection.
Zscaler Internet Access is seen as costly but premium compared to traditional solutions, offering unmatched services and global coverage.
That's where Cloudflare shines for smaller businesses – it's ten times cheaper than Akamai.
I find it to be cheap.
I think they should consider reevaluating the pricing for support, as it can be quite high.
Zscaler Internet Access is recognized as an expensive solution.
Zscaler Internet Access is less expensive than competitors like Palo Alto, offering a premium service justified by security enhancements and cost-effective scalability.
 

Valuable Features

Cloudflare offers caching, DDoS protection, and CDN services, enhancing website speed and security with intuitive interface and global reach.
Zscaler Internet Access delivers comprehensive cloud-native security with threat protection, ease of use, and centralized management for remote users.
The most valuable features of the solution are performance and security.
Techniques like minification and image compression reduce the size of assets, leading to better performance and faster user load times.
The solution has been able to compare it to the market, and I think the product has taken great strides in automating quite a bit of things, and they use a lot of AI.
The most valuable feature for me is the ability to see how my network and traffic looks with modules like analytics and insights.
Some of the most valuable features of Zscaler Internet Access include secure web gateways, URL filtering, data loss prevention, anti-malware defense, file extension blocking, and a comprehensive categorization system.
 

Categories and Ranking

Cloudflare
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
75
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (13th)
Zscaler Internet Access
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
53
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Internet Security (2nd)
 

Mindshare comparison

While both are Security Software solutions, they serve different purposes. Cloudflare is designed for Distributed Denial-of-Service (DDoS) Protection and holds a mindshare of 19.8%, up 19.1% compared to last year.
Zscaler Internet Access, on the other hand, focuses on Secure Web Gateways (SWG), holds 15.1% mindshare, down 17.2% since last year.
Distributed Denial-of-Service (DDoS) Protection
Secure Web Gateways (SWG)
 

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.
ShanavasVK - PeerSpot reviewer
Helps maintain a consistent posture of internet security while getting rid of VPN and hovering into zero trust
There could be a better way for the tool to categorize the traffic. For example, the tool does exceptions and everything overall. If I want to give guest access or provide access to guest users or any other internet access and if it does not go through the SSL inspection because, in our company, we can't have the root certificate on a device that we don't manage, which can be called out as an exception or an exclusion, but that doesn't provide a proper reflection of the picture of what is happening in the environment. There are granularities bringing it down. The tool I used or still have is Zscaler Cloud Connector to protect the cloud environment, which can have a bit more user-friendly installation and setup, and it would help a lot. The deployment process of Zscaler Cloud Connector needs to be more user-friendly. Improvements are required in the exception category. For example, suppose I report on a monthly basis what the breaches and traffic violating the SSL inspection area are coming from. In that case, I may find that half of them may be coming through some guest network, meaning the tool doesn't differentiate between the guest or normal networks or the corporate networks. Having options to differentiate different networks would be ideal so that it can show a true picture of things to users, as half of the things in the tool are not in our control and are not of our concern.
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Comparison Review

it_user68487 - PeerSpot reviewer
Nov 6, 2013
CloudFlare vs Incapsula: Web Application Firewall
CloudFlare vs Incapsula: Round 2 Web Application Firewall Comparative Penetration Testing Analysis Report v1.0 Summary This document contains the results of a second comparative penetration test conducted by a team of security specialists at Zero Science Lab against two cloud-based Web…
 

Top Industries

By visitors reading reviews
Computer Software Company
14%
Educational Organization
11%
Comms Service Provider
10%
Financial Services Firm
9%
Computer Software Company
15%
Educational Organization
13%
Manufacturing Company
10%
Financial Services Firm
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 GRE tunnels. We have decreased site load times on Mobile 3G from 8 to 1,6 seconds ...
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 that offers great redundancy and advanced security with built-in unmetered and ...
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.
Which is the better security solution - Cisco Umbrella or Zscaler?
Cisco Umbrella and Zscaler Internet Access are two broad-spectrum Internet security solutions that I have tried. Zscaler Internet Access is a good option for carrying out multiple security functi...
Which is better, Zscaler internet access or Netsckope CASB?
We researched Netskope but ultimately chose Zscaler. Netskope is a cloud access security broker that helps identify and manage cloud applications, protecting your sensitive data from exfiltration....
 

Also Known As

Cloudflare DNS
ZIA
 

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.
Ulster-Greene ARC, BanRegio, HDFC, Ralcorp Holdings Inc., British American Tobacco, Med America Billing Services Inc., Lanco Group, Aquafil, Telefonica, Swisscom, Brigade Group
Find out what your peers are saying about Cloudflare, Radware, NETSCOUT and others in Distributed Denial-of-Service (DDoS) Protection. Updated: June 2025.
856,856 professionals have used our research since 2012.