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Cloud Security Connector for Zscaler vs Squid Proxy Cache Server comparison

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Comparison Buyer's Guide

Executive Summary

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
7.3
Zscaler's Cloud Security Connector enhances security and productivity, cutting costs, time, and overhead while improving efficiency and response times.
Sentiment score
3.3
Squid Proxy Cache Server offers mixed ROI perceptions with potential cost savings and efficiency, but lacks uniform financial benefits.
Incident troubleshooting time reduced by 35 to 45 percent because Zscaler logs could be directly used instead of correlating multiple cloud and firewall logs.
Technical Team Lead - Content Security at Valuepoint Systems
Overall, this has improved team productivity, allowing the same team to handle more deployments without increasing headcount.
Automation Engineer at Techmahindra
Now, with Cloud Security Connector for Zscaler, we do it in about thirty seconds, which shows significant time saved.
Senior Consultant at a outsourcing company with 1,001-5,000 employees
I have seen a return on investment with Squid Proxy Cache Server because money is definitely saved.
Owner For Data Center Operations Dns Cache at Proximus S.A.
With Squid Proxy Cache Server, you can save money because you don't need to pay for more bandwidth as you concentrate the web access in Squid Proxy Cache Server.
Cybersecurity Tenure Specialist at a tech vendor with 10,001+ employees
Technically, if I think about the implementation cost, the cost of use, of adjustments, over time, and maintenance, it has certainly already paid for itself.
Analista de Segurança Senio at Optanet
 

Customer Service

Sentiment score
8.5
Cloud Security Connector support for Zscaler is praised for prompt, effective service with room for faster complex issue resolution.
Sentiment score
3.9
Squid Proxy Cache Server requires minimal support due to strong community resources, documentation, and Linux-based user familiarity.
In more complex scenarios such as routing or policy tuning, support provided best practices and recommendations, which made the implementation smoother.
Technical Team Lead - Content Security at Valuepoint Systems
We reached out to customer support three weeks back due to an issue where Zscaler got stuck, and they identified and solved the problem within 45 minutes, which is exceptional.
Head Of The Development at Flash AI
The support team is knowledgeable and responsive, especially for standard issues.
Automation Engineer at Techmahindra
It would be great to have support similar to Red Hat Enterprise Linux.
Security Infrastructure Security Engineer at a comms service provider with 1,001-5,000 employees
We were managing it on our own, and it was totally open-source.
Microsoft System Administrator at National Bank of Pakistan
There is an open-source community available on the internet, or the manual pages themselves are very helpful.
Dev Ops Technical Lead at a computer software company with 201-500 employees
 

Scalability Issues

Sentiment score
8.7
Cloud Security Connector for Zscaler offers seamless scalability and integration, adapting efficiently to organizational growth and regional expansions.
Sentiment score
5.4
Squid Proxy Cache Server provides robust scalability, efficiently managing traffic, configurable IP ranges, and easy deployment on Linux.
As workloads grow, routing can be updated and traffic can be distributed across multiple connectors without major architecture changes.
Technical Team Lead - Content Security at Valuepoint Systems
Cloud Security Connector for Zscaler is highly scalable since it is built on cloud-native architecture and can support organizations ranging from small businesses to large enterprises without requiring significant infrastructure changes.
Automation Engineer at Techmahindra
Cloud Security Connector for Zscaler's scalability is definitely impressive, as it has handled growth and changes in our organization well.
Head Of The Development at Flash AI
Scalability-wise, it is stateless, so it could be scaled.
Senior Software Engineer at a tech vendor with 1,001-5,000 employees
Scalability of Squid Proxy Cache Server is extremely high.
Analista de Segurança Senio at Optanet
We can increase the number of end users without the limitations found in other proxies, simply by configuring Squid Proxy Cache Server to allow specific users and IP ranges.
Linux System Engineer at a tech vendor with 10,001+ employees
 

Stability Issues

Sentiment score
8.4
Cloud Security Connector for Zscaler is reliable and stable, with minimal downtime and robust performance once configured.
Sentiment score
8.0
Squid Proxy Cache Server is stable and reliable, with exceptional logging, though users occasionally face crashes and connection issues.
There have not been any major downtime or critical issues.
Technical Team Lead - Content Security at Valuepoint Systems
Once it is properly configured and deployed, it performs reliably with minimal issues.
Automation Engineer at Techmahindra
It gives us high reliability and the user or the admin can genuinely trust the results that they are getting out of the security platform itself.
Center Of Excellency For Sase And Ot And Io T Security at a outsourcing company with 51-200 employees
Importantly, there has been no major outage in the 10 years I have used Squid Proxy Cache Server.
Linux System Engineer at a tech vendor with 10,001+ employees
It sometimes crashes, and it cannot handle too many connections.
Senior Software Engineer at a tech vendor with 1,001-5,000 employees
Squid Proxy Cache Server is stable; I have been using it for twenty years, and it has remained stable throughout that time.
Works at a computer software company with 51-200 employees
 

Room For Improvement

Cloud Security Connector for Zscaler needs improvements in configuration, integration, and analytics for better efficiency and user experience.
Squid Proxy could enhance usability with a user interface, AI features, better security, and optimized caching for broader adoption.
A key learning from this was that while Cloud Security Connector for Zscaler provides strong security control, proper policy tuning and understanding application behavior is critical for smooth deployment.
Technical Team Lead - Content Security at Valuepoint Systems
The improvements they can make include a highly resilient, context-aware PAC, proxy auto-configuration engine built directly into the local appliance firmware that can cleanly evaluate complex regular expressions and long hostnames.
Systems Engineer at a consultancy with 51-200 employees
If I need to suggest an improvement, it would be to simplify the steep learning curve, as it can be complex for newcomers without prior experience.
Head Of The Development at Flash AI
Control of information is needed so that sensitive actions are not cached, which would violate local security laws, such as in Brazil with LGPD, and in other places around the world as well.
Analista de Segurança Senio at Optanet
With the rise of cloud systems and OpenShift, enabling such features in Squid Proxy Cache Server would be very beneficial for customers, allowing for better management.
Linux System Engineer at a tech vendor with 10,001+ employees
By default, Squid cannot see inside HTTPS traffic. It only sees the destination domain name, which poses a risk as users can bypass URL filters or download malware over encrypted connections.
System Auxiliary at Base Camp Data Solutions
 

Setup Cost

Cloud Security Connector for Zscaler provides competitive pricing, scalability, and strong value, adapting to organization size and budget.
Squid Proxy Cache Server is open-source, offering cost savings with support through Red Hat or community resources.
Overall, while pricing depends on the enterprise agreement, the solution delivers good value considering the visibility, control, and security it provides.
Technical Team Lead - Content Security at Valuepoint Systems
While it may have a higher initial investment than some alternatives, I believe it provides good value because of its scalability, cloud-native architecture, centralized management, and strong security capabilities.
Automation Engineer at Techmahindra
The experience with pricing, setup cost, and licensing for Cloud Security Connector for Zscaler is definitely competitive.
Head Of The Development at Flash AI
The costs are low because it is open-source software.
Works at a computer software company with 51-200 employees
I have seen a cost saving since implementing Squid Proxy Cache Server because then I don't have to really go for something such as a Blue Coat proxy.
Owner For Data Center Operations Dns Cache at Proximus S.A.
For our environment, we are using the free open source Squid Proxy Cache Server, so there is no licensing cost.
Security Infrastructure Security Engineer at a comms service provider with 1,001-5,000 employees
 

Valuable Features

Cloud Security Connector for Zscaler ensures efficient, agentless cloud security with centralized management, zero-trust support, and seamless cloud integration.
Squid Proxy Cache Server is valued for its easy installation, open-source nature, compatibility, and comprehensive caching, security, and management features.
It also provides Layer 4 routed bypass for TCP, UDP, and ICMP traffic, enabling granular traffic control that streamlines our services working with Zscaler.
Head Of The Development at Flash AI
Previously, if a particular task was taking 10 minutes, now it is significantly reduced to two to three minutes only.
Decision Scientist 3 at Mu Sigma Inc.
I find the strong zero-trust approach for cloud workloads to be the most valuable day-to-day because Cloud Security Connector for Zscaler is designed around zero-trust connectivity, not legacy network extension.
Security Practitioner at a tech vendor with 10,001+ employees
Squid Proxy Cache Server is very good in hiding your IP address and exposing the IP address list that it has, which is very good for the scraping use case.
Senior Software Engineer at a tech vendor with 1,001-5,000 employees
Squid Proxy Cache Server has positively impacted my organization because I can filter internet access, which protects my company from users accessing malicious sites.
Data Engineer at Ericsson
Squid Proxy Cache Server has had a considerable positive impact on my organization, since a large part of internet traffic needs to be filtered to remain within the company's policies, as well as to reduce the amount of necessary traffic.
Analista de Segurança Senio at Optanet
 

Categories and Ranking

Cloud Security Connector fo...
Average Rating
8.6
Reviews Sentiment
7.8
Number of Reviews
10
Ranking in other categories
Internet Security (5th)
Squid Proxy Cache Server
Average Rating
8.4
Reviews Sentiment
5.0
Number of Reviews
18
Ranking in other categories
Application Infrastructure (8th)
 

Mindshare comparison

Cloud Security Connector for Zscaler and Squid Proxy Cache Server aren’t in the same category and serve different purposes. Cloud Security Connector for Zscaler is designed for Internet Security and holds a mindshare of 0.8%.
Squid Proxy Cache Server, on the other hand, focuses on Application Infrastructure, holds 0.2% mindshare.
Internet Security Mindshare Distribution
ProductMindshare (%)
Cloud Security Connector for Zscaler0.8%
Zscaler Internet Access27.9%
Cisco Umbrella27.7%
Other43.6%
Internet Security
Application Infrastructure Mindshare Distribution
ProductMindshare (%)
Squid Proxy Cache Server0.2%
NGINX Plus7.8%
Apache Web Server6.7%
Other85.3%
Application Infrastructure
 

Featured Reviews

Vibin Thomas - PeerSpot reviewer
Technical Team Lead - Content Security at Valuepoint Systems
Unified cloud policies have improved zero-trust controls and simplified workload monitoring
A challenge faced during the initial implementation involved routing and application dependency. After routing cloud workload traffic through Cloud Security Connector for Zscaler, a few applications started failing because they depended on specific external services that were getting blocked due to strict policies or SSL inspection. To resolve this, traffic was analyzed using Zscaler logs, the exact domains and services being impacted were identified, and a controlled policy exception was created while maintaining overall security. This helped strike the right balance between security and application availability, which is very important in production environments. A key learning from this was that while Cloud Security Connector for Zscaler provides strong security control, proper policy tuning and understanding application behavior is critical for smooth deployment. Cloud Security Connector for Zscaler has had a very positive impact, especially in terms of security and operational efficiency. Before implementation, cloud workloads had direct internet access through the NAT gateway, which limited visibility and control over outbound traffic. After adopting Cloud Security Connector for Zscaler, all traffic was routed through Zscaler, giving centralized visibility and full policy enforcement. One improvement observed was a significant increase in threat detection. The ability to identify and block suspicious outbound connections that were previously not visible improved the overall security posture. From an operational perspective, troubleshooting became much faster. Instead of checking multiple cloud logs, Zscaler logs could be directly used to analyze traffic behavior, which reduced incident resolution time. The dependency on traditional firewall appliances in cloud environments was reduced, which simplified the architecture and lowered operational overhead. Additionally, for compliance-driven clients in banking, it helped meet audit requirements by providing detailed logs and consistent policy enforcement across both users and workloads. Measurable improvements were observed after implementing Cloud Security Connector for Zscaler. In terms of visibility and threat detection, a 25 to 35 percent increase in identifying suspicious outbound connections was seen that were previously not visible when traffic was going through NAT. From an operational standpoint, troubleshooting time reduced by 45 to 55 percent because Zscaler logs could be directly analyzed instead of checking multiple cloud logs. Dependence on additional security appliances in the cloud was also reduced, which helped lower operational overhead and simplified the architecture. In terms of compliance, better audit readiness was achieved with centralized logging and consistent policy enforcement across workloads and users. While Cloud Security Connector for Zscaler is a strong solution, one area that could be improved, especially for teams that are new, is configuring route tables, ensuring proper traffic flow, and avoiding asymmetric routing, which can be challenging, particularly in large or multi-VPC environments. More automated deployment options or guided configurations, especially for AWS or Azure, would simplify the onboarding process. Another area for improvement is better visibility at the cloud-native level, such as tighter integration with cloud logs or more context-aware insight for workload behavior, which would make troubleshooting even faster. Once properly implemented, it works efficiently and provides strong security and visibility. In addition to deployment simplicity, improvements around policy tuning and documentation would add significant value. From a policy perspective, when Zscaler policy is extended to cloud workloads, it sometimes requires careful fine-tuning to avoid impacting application dependency. More predefined templates or workload-specific policy recommendations would help teams implement it faster with fewer disruptions. In terms of documentation, while the existing guides are helpful, more step-by-step real-world deployment examples, especially for multi-VPC or hybrid environments, would make onboarding smoother for teams. Tighter integration guidance with cloud-native tools such as AWS logging or monitoring services would further improve troubleshooting and visibility. From a support standpoint, faster access to best practice recommendations or reference architecture would help teams avoid common misconfigurations during the initial setup.
Mayashankar Mishra - PeerSpot reviewer
Owner For Data Center Operations Dns Cache at Proximus S.A.
Caching and reverse proxy have boosted performance and improved secure web and mail access
I think Squid Proxy Cache Server can be improved by having a nice front-end, one similar to Blue Coat for access management, view management, and direct configuration instead of doing it all through the CLI. It's best to have everything done through the GUI, which is what I think can improve the product. I don't want to implement third-party GUIs on Squid Proxy Cache Server. So that's what would be on my wish list—that Squid Proxy Cache Server by itself provides a GUI, which will give more confidence to users. I haven't actually used AI with Squid Proxy Cache Server, but I think it might be very interesting to have the AI capability built-in. However, I do think we need some GPU or something to boost the performance on Squid Proxy Cache Server as natively running. I think we need to add some GPU cards so that it works more natively with AI. I don't have experience using AI features yet, but I think it would be great if it could do some live scanning of the websites that are getting blocked on a daily basis and perform some sampling analysis. Especially in the case of reverse proxy, if there are any attacks happening, it would be beneficial if it scrapes through its own log files and provides some nice dashboards showing where the attacks are coming from. That would be really great to have as a handy troubleshooting tool. One more feature I would ask for is if AI can provide the best possible configuration and do a review of Squid Proxy Cache Server just to make sure that no other ports or anything by default are missed in configuration. It would also be great if the proxy server acts as a load balancer in a cluster mode that shares the cache, and the configuration is best set.
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Top Industries

By visitors reading reviews
Construction Company
20%
Manufacturing Company
12%
Insurance Company
9%
Financial Services Firm
9%
Construction Company
19%
Comms Service Provider
10%
Computer Software Company
8%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise1
Large Enterprise6
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise3
Large Enterprise11
 

Questions from the Community

What is your experience regarding pricing and costs for Cloud Security Connector for Zscaler?
My experience with pricing, setup cost, and licensing for Cloud Security Connector for Zscaler reveals that the pricing can be complex since it is rarely sold at a stand-alone price. Instead, the l...
What needs improvement with Cloud Security Connector for Zscaler?
Cloud Security Connector for Zscaler agents have some issues while applying the policies, and the main thing is when we try to apply policies over the ZCC agent, it takes a couple of minutes. I thi...
What is your primary use case for Cloud Security Connector for Zscaler?
The main use case for Cloud Security Connector for Zscaler is monitoring the cloud traffic that we do, and we can connect cloud security applications with the AWS and GCP infrastructure so that we ...
What is your experience regarding pricing and costs for Squid Proxy Cache Server?
My experience with Squid Proxy Cache Server regarding pricing, setup cost, and licensing is that it is an open-source product. There is no pricing, setup cost, or licensing cost. You use it and if ...
What needs improvement with Squid Proxy Cache Server?
I cannot think of how Squid Proxy Cache Server can be improved. It has everything built-in, from Active Directory integration to centralized logging. It has been a proxy cache server for so many ye...
What is your primary use case for Squid Proxy Cache Server?
My main use case for Squid Proxy Cache Server is that we have machines behind an internet firewall which do not have access to the internet. The only way these machines can access anything outside,...
 

Overview

Find out what your peers are saying about Cisco, Zscaler, iboss and others in Internet Security. Updated: September 2026.
917,181 professionals have used our research since 2012.