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A More Effective Approach Than Cloudflare Page Shield

Looking to secure your site against malicious third-party scripts? Let us show you how!

What you will learn

Why third-party scripts are a security risk for you and your visitors
Our unique proxy-based approach
How c/side compares to other solutions
How to get started

Why we're different

How c/side compares against Cloudflare Page Shield

c/side offers greater protection at a lower cost. Check our pricing

c/side’s independently QSA audited PCI dashboard automates the tedious tasks that eat up your team's hours while providing real-time protection against javascript-based attacks on payment pages.

c/side
Cloudflare Page ShieldCloudflare Page Shield
CriteriaWhy It MattersWhat the Consequences Are
Approaches usedProxy + agent based detections but also offers crawler and offers a free CSP reporting endpointCSP + fetching script after
Real-time Protection
Attacks can occur between scans or in the excluded data when sampledDelayed detection = active data breaches
Full Payload Analysis
Ensures deep visibility into malicious behaviors within script code itselfThreats go unnoticed unless the source is known on a threat feed
Dynamic Threat Detection
Identifies attacks that change based on user, time, or locationMissed detection of targeted attacks
DOM-Level Threat Detection
Tracks changes to the DOM and observes how scripts behave during runtimeUnable to identify sophisticated DOM-based attacks
100% Historical Tracking & Forensics
Needed for incident response, auditing, and complianceNeeded for incident response, auditing, and compliance
Bypass Protection
Stops attackers from circumventing controls via DOM obfuscation or evasionStealthy threats continue undetected
Certainty the Script Seen by User is Monitored
Aligns analysis with what actually executes in the browserGaps between what’s reviewed and what’s actually executed
AI-driven Script Analysis
Detects novel or evolving threats through behavior modelingReliance on manual updates, threat feeds or rules = slow and error-prone detection
QSA validated PCI dash
The most reliable way to ensure a solution is PCI compliant is to conduct a thorough audit by an independent QSAWithout QSA validation, you rely entirely on marketing claims, which could result in failing an audit
SOC 2 Type II
Shows consistent operational security controls over timeLacks verified security control validation, making it a risky vendor
PCI specific UI
An easy interface for quick script review and justification via one click or AI automationMundane tasks and manual research on what all the scripts do, which takes hours or days

Why c/side Succeeds Where Others Fail

Traditional security approaches face major limitations that bad actors leverage: content security policies (CSPs), crawlers and JavaScript agents. They may only detect clean scripts, slow down your website, or completely overlook dynamic threats that detonate for specific users, times, devices or locations.

c/side's Hybrid Proxy Advantage:

Real-time Protection

Inspects every script before it reaches users, with zero latency

Complete Visibility

Analyzes exactly what each visitor's browser executes

AI-Powered Analysis

Surfaces sophisticated threats that traditional tools miss

100% Historical Tracking

Records every script payload for rapid incident response

Dynamic Detection Catches

Detect targeted attacks that only occur for specific users, times, or locations

Bypass Protection

Defeats CSP evasion, shadow DOM tricks, and obfuscated code

Make PCI DSS 4.0.1 Easy

PCI DSS 4.0.1 requirements 6.4.3 and 11.6.1 compel businesses to protect client-side Javascript on their site (1st party, 3rd party and dependencies of 3rd parties). c/side takes care of you and continuously discovers and catalogs every script on your payment pages. When new scripts appear, AI generates business justifications automatically. Weekly audit reports are delivered to your inbox in PDF format, ready for QSA compliance reviews.

A screenshot of c/side's dashboard for PCI DSS Header 11.4.1 compliance

in image: cside PCI dashboard for scripts 6.4.3

A screenshot of c/side's dashboard for PCI DSS Header 11.4.1 compliance

in image: cside PCI dashboard for headers 11.6.1

"Through this comparative analysis, VikingCloud observed that the proper implementation of the c/side platform effectively mitigates attacks specific to the scenarios targeted by PCI DSS requirements 6.4.3 and 11.6.1."

VikingCloud

ASCII Art of the c/side logo

380k+ compromised websites found in 2025

In 2025 alone, we found 380,000 compromised websites, highlighting a growing reliance by attackers on Javascript-based delivery mechanisms, third-party supply chain vulnerabilities, and deceptive social engineering tactics such as fake browser updates.

Why Leading QSAs Prefer c/side

Only c/side delivers

A PCI-specific dashboard to easy report on 6.4.3 & 11.6.1, validated by Viking Cloud (Mastercard's QSA)
Real-time payload inspection before it hits the browser
DOM-level, time-based, and dynamic threat detection
Full forensic history of every script ever served

Contact us

Our friendly team would love to hear from you.

Frequently Asked Questions

Everything you need to know about the product.