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Cloud Security Connector for Zscaler vs Quad9 comparison

 

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:
 

Categories and Ranking

Cloud Security Connector fo...
Ranking in Internet Security
11th
Average Rating
8.6
Reviews Sentiment
8.8
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Quad9
Ranking in Internet Security
9th
Average Rating
6.0
Reviews Sentiment
7.9
Number of Reviews
2
Ranking in other categories
Managed DNS (5th)
 

Mindshare comparison

As of January 2026, in the Internet Security category, the mindshare of Cloud Security Connector for Zscaler is 0.5%. The mindshare of Quad9 is 5.4%, up from 5.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Internet Security Market Share Distribution
ProductMarket Share (%)
Quad95.4%
Cloud Security Connector for Zscaler0.5%
Other94.1%
Internet Security
 

Featured Reviews

Jaspreet k - PeerSpot reviewer
Head of Development at Flash.co
Addressed complex learning curve yet has improved automated routing and cloud security visibility
Cloud Security Connector for Zscaler offers multiple features, but the major feature I love specifically is automated Zscaler node detection, which helps detect any kind of problem first. Additionally, it is available all the time, providing high availability routing for seamless failover, which is one of my favorite 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. It has provided complete visibility of internal IPs on the Zscaler console, allowing us to monitor and troubleshoot whenever there is a problem, making things transparent and easy for us to monitor. The integration with SIEM or syslog enhances centralized log management for our organization.
Louis Geoffroy - PeerSpot reviewer
President at IDEBUG
It's easy to use and set up, but I've faced performance problems
I have experience with Quad9 and most other filtering solutions. Quad9 was working well initially, but it started slowing, so I switched to OpenDNS. I recently checked Tom's Hardware, an IT review site, and read a review of seven DNS filters. Open DNS was ranked the fastest, and Quad9 was second. Google was on there too, but they said it didn't filter enough.

Quotes from Members

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

Pros

"Cloud Security Connector for Zscaler has positively impacted our organization by helping us in our cloud environment to connect our resources to Zscaler, ensuring that security policies are consistent with zero-trust access and increasing reliability by 28%."
"It is very useful ............visibility on the end-user,"
"The solution is secure."
"Setting up Quad9 is straightforward if you know what you're doing, and it's easy to use overall."
"The most valuable feature of Quad9 is that it is a free solution."
 

Cons

"If there are any issues at the network level, such as users working from home, then it is very hard to catch up with them and resolve issues on the end-user machine."
"The connectivity could be faster."
"Quad9 could improve by having more free features, such as custom DNS filtering."
"It used to work fine for all the devices, but it started to slow and become non-responsive. I would have to reload the page two or three times before all the pages loaded. With OpenDNS, I only need to load the page once."
 

Pricing and Cost Advice

Information not available
"The price of Quad9 is free."
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Top Industries

By visitors reading reviews
Insurance Company
18%
Manufacturing Company
17%
Financial Services Firm
10%
Computer Software Company
8%
Comms Service Provider
24%
Computer Software Company
9%
Hospitality Company
8%
Financial Services Firm
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Cloud Security Connector for Zscaler?
The experience with pricing, setup cost, and licensing for Cloud Security Connector for Zscaler is definitely competitive. They provide us a good cost, and since we obtained it through AWS Marketpl...
What needs improvement with Cloud Security Connector for Zscaler?
I feel that they are doing great with Cloud Security Connector for Zscaler. If I need to suggest an improvement, it would be to simplify the steep learning curve, as it can be complex for newcomers...
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 ...
 

Overview

 

Sample Customers

Information Not Available
CISCO, Netlab, proofpoint
Find out what your peers are saying about Cloud Security Connector for Zscaler vs. Quad9 and other solutions. Updated: January 2026.
881,082 professionals have used our research since 2012.