CSide vs Reflectiz: The Reality Check
CSide recently published a comparison page making bold claims about their proxy-based approach. As the industry leader in client-side security with more script detection capabilities than our competitors, we believe enterprises deserve the full picture when evaluating security solutions.
This page presents factual, evidence-based comparisons to help you make an informed decision about protecting your digital assets.
Trusted by top companies:
⚠️ Critical Issues with CSide’s Proxy Approach
1. Performance Degradation at Scale
Multiple industry reports confirm proxy architectures can add latency, particularly for complex web applications with numerous third-party scripts.
2. Massive Privacy & Data Exposure Risk
CSide can see your user data through their proxy – including personal information, payment details, and sensitive customer data. This creates an enormous privacy risk and compliance nightmare. You’re essentially giving a third-party vendor complete visibility into your customer interactions.
3. No iFrame Visibility – Critical Security Blind Spot
Through its proxy-based setup, CSide cannot monitor or protect content within iFrames – a massive security gap. Many payment processors, chat widgets, and third-party integrations use iframes. Attackers know this and specifically target iframe-based attacks that proxy-based CSide simply cannot detect or prevent. They may have an agentless solution to achieve this iframe visibility.
4. 30% Traffic Blindness Due to Ad Blockers
Ad blockers can block up to 30% of web page components such as trackers. This means CSide most likely will detect less components than an agentless solution like Reflectiz.
5. Catastrophic Downtime Risk
Proxy-based solutions require high availability to avoid any downtime risk. It also require immense responsibility to maintain sufficient proxy settings throughout.
6. Complex Implementation & Maintenance
Implementing a proxy requires infrastructure changes, SSL certificate management, DNS modifications, and ongoing maintenance. CSide’s “hybrid” approach, where some scripts are proxied and others aren’t, creates additional complexity and potential security gaps.
7. Data Integrity & Analytics Problems
Routing traffic through a proxy affects your analytics data. IP addresses, user locations, and traffic patterns all get distorted. Your marketing analytics, fraud detection systems, and business intelligence tools see CSide’s proxy IPs instead of real user data. This breaks attribution, skews metrics, and can cost millions in misdirected marketing spend.
8. Compliance and Legal Liability
Routing all user traffic through a third-party proxy raises significant privacy and compliance issues. Under GDPR and other data protection regulations, you’re adding another data processor to your chain, increasing compliance complexity and liability. CSide becomes a custodian of your customer data.
9. Browser Compatibility & Blocking Issues
The consequences of a proxy-based solution: Brave Shields [Brave browser’s built-in privacy and security feature that blocks ads] is blocking proxy.cside.dev, which CSide uses to proxy third-party JavaScript for security analysis. Cside don’t want you to know that so they removed the link, but we have the screenshot proof:
CSide is being flagged by browser security tools, which could impact their service delivery.
✓ Reflectiz’s Enterprise-Proven Advantages
Industry-Leading Detection with Zero Implementation
Reflectiz detects more scripts than any competitor on complex websites – without requiring a single line of code change. Our agentless approach means you get comprehensive visibility in hours, not months. We’ve proven this across thousands of enterprise deployments.
Advanced Deobfuscation Engine
Our proprietary deobfuscation technology is the most sophisticated in the industry, capable of analyzing even the most complex obfuscated malicious code. Unlike CSide’s basic LLM approach, our engine uses multi-layer analysis methods trained on millions of threat patterns, providing instant insights into sophisticated attack techniques.
On-Demand Script Blocking
When threats are detected, Reflectiz provides instant blocking capabilities without the complexity of proxy management. Our intelligent blocking system learns from your security team’s responses, automatically adjusting to your risk tolerance while maintaining site functionality.
True Real-Time Behavioral Analysis
Our behavioral analysis engine monitors actual script behaviors in real-world conditions across all user segments. We detect when scripts capture keystrokes, modify payment fields, or exfiltrate data to unauthorized endpoints – providing alerts your security team can act on immediately.
Zero Performance Impact
Because Reflectiz operates completely outside your traffic flow, there’s absolutely zero impact on your website’s performance. No added latency, no proxy bottlenecks, no SSL complications – just pure security intelligence without compromise.
⚠️Beware of Misleading Claims
CSide’s comparison page contains several inaccuracies about Reflectiz:
- We DO provide real-time protection and blocking capabilities
- We DO analyze full script payloads, not just domains
- We DO offer comprehensive forensics and historical tracking
- We DO detect DOM-level threats and sophisticated attacks
- Our detection rates are HIGHER than proxy-based solutions
🚨Critical Security Gaps CSide Won’t Tell You
Before choosing CSide, understand these severe limitations:
- ZERO iFrame Protection: Cannot see or protect payment widgets, chat systems, or any iFrame content with proxy-based solution. Remote solution can give you this visibility.
- Complete Data Exposure: CSide’s proxy can see your customer data including passwords, payment info, and PII
- Analytics Affected: Proxy breaks your analytics, attribution, and fraud detection systems
Ask yourself: Can you afford these risks?
Frequently Asked Questions
Q: How does Reflectiz detect more scripts than CSide’s proxy?
Unlike embedded or proxy-based solution, Reflectiz advanced browser-based detection engine has no limitations — and uses multiple discovery methods including intelligent crawling with geo-targeting, device simulation, and behavioral pattern analysis. We detect scripts that only appear under specific conditions – something proxy-based solutions miss entirely. Independent testing shows we detect more scripts on complex websites.
Q: Can Reflectiz really block scripts without a proxy?
Yes. Reflectiz offers multiple blocking mechanisms that don’t require routing traffic through a proxy. Our solution integrates with your existing security infrastructure to provide instant blocking when threats are detected, without adding latency or complexity to your architecture.
Q: Why can’t CSide see iFrame content?
Proxy-based solutions like CSide operate at the network layer and cannot inspect content within iFrames due to browser security policies (same-origin policy). This is a fundamental limitation of their architecture. Reflectiz uses advanced browser-based detection that can monitor and analyze iFrame behavior, protecting payment widgets, chat systems, and other critical iFrame-based components. CSide may have an agentless solution, like Reflectiz, to help with this detection blind spot.
Q: What are the privacy implications of routing traffic through CSide’s proxy?
Severe. CSide’s proxy can see your customer data – passwords, payment details, personal information, everything. You’re making them a custodian of your most sensitive data. If CSide gets breached, has a rogue employee, or has a bug, your customer data is at risk. Under GDPR and other regulations, you’re adding another data processor with full access to user data. Reflectiz never touches your user traffic or sees any customer data.
Q: Can attackers reverse-engineer CSide’s detection methods?
Absolutely. CSide’s detection logic runs in client-side JavaScript, fully visible to anyone who opens browser developer tools. Sophisticated attackers routinely reverse-engineer client-side security code to find bypasses. It’s security through obscurity at its worst. Reflectiz’s detection logic is server-side and completely invisible to attackers.
Q: How does CSide’s proxy affect analytics and fraud detection?
Proxies affect your analytics data. All traffic appears to come from CSide’s proxy IPs instead of real users. This breaks attribution, skews geographic data, interferes with fraud detection systems, and can cost millions in misdirected marketing spend. Your business intelligence becomes unreliable. Reflectiz has zero impact on your analytics or other systems.
Q: How quickly can Reflectiz be onboarded compared to CSide?
Reflectiz can be fully operational within 24 hours with zero code changes. CSide’s proxy architecture requires DNS changes, SSL certificate management, infrastructure modifications, and extensive testing. Enterprise CSide deployments typically take weeks, while Reflectiz starts immediately within 24 hours.
The Technical Reality: Why Proxies Fail at Scale
Independent security research consistently shows the limitations of proxy-based approaches:
- Latency Impact: Studies show proxy architectures add 50-200ms of latency in production environments.
- SSL Complexity: Managing SSL termination at the proxy layer introduces security vulnerabilities and operational overhead
- Bypass Vulnerabilities: Attackers can detect and evade proxy IP ranges just as easily as they evade crawlers
🔒 The Privacy Nightmare: CSide Can See Everything
Your Customer Data Flows Through CSide’s Servers
Every proxy-based solution has the same fundamental flaw: some of your user traffic passes through their servers. This means CSide has visibility into:
- ✗ Customer login credentials and passwords
- ✗ Payment card details and transaction data
- ✗ Personal identification information (PII)
- ✗ Proprietary business data and customer interactions
- ✗ Session tokens and authentication cookies
- ✗ Form submissions and user inputs
Think about it: You’re essentially making CSide a man-in-the-middle for all your customer interactions. If they get breached, if they have a rogue employee, if they have a bug in their system – your customer data is at risk. Is that a risk you can afford to take?
Why Reflectiz Customers Don’t Switch
Zero Implementation Risk
Deploy in 24 hours without touching your infrastructure. No proxy setup, no SSL certificates, no DNS changes.
Superior Detection
Detect more scripts than any competitor. Our multi-dimensional analysis catches what proxies miss.
Enterprise Scale
Proven at Fortune 500 scale without performance degradation. No proxy bottlenecks, no latency concerns.
Instant Blocking
Block malicious scripts on-demand without proxy complexity. Intelligent, adaptive protection that learns from your team.
Best Deobfuscation
Industry-leading deobfuscation engine reveals even the most sophisticated attack techniques instantly.
Compliance Ready
Purpose-built for PCI DSS 4.0, GDPR, and enterprise compliance without adding complexity to your architecture.
The Bottom Line
In our view, CSide’s proxy approach represents outdated thinking in client-side security. While they focus on complex proxy architectures that add latency and create single points of failure, Reflectiz has built the future: agentless, intelligent security that deploys instantly and scales infinitely.
Don’t let marketing claims fool you. When Fortune 500 companies need real client-side security without compromising performance or adding complexity, they choose Reflectiz. Join thousands of security teams who’ve made the smart choice.
The Reflectiz Proactive Approach
Go beyond client-side security and vulnerability patching by taking a proactive approach to combat sophisticated web threats, gain deeper visibility, and mitigate security and privacy risks before they strike.
