Product
Free CSP Reporting Endpoint
Why a CSP endpoint?
How c/side compares against competitors
c/side offers greater protection at a lower cost. Check our pricing
A properly configured Content Security Policy (CSP) can help prevent dangerous third-party script sources from being fetched. With cside, you can now deploy a Content Security Policy and use the cside endpoint included in your plan. Offering a single pane of glass to handle violations, reporting and combined with our client-side script giving you visibility into suspicious script behavior via full client-side forensics.
c/side |  DataDome |  Imperva Client Side Protection |  Reflectiz |  Report URI |  Cloudflare Page Shield |  Fastly Client-Side Protection | |
|---|---|---|---|---|---|---|---|
| CSP Report Endpoint Price | $0.00 / year | Enterprise + $4.990,00 / year | Pro plan + $5.100,00 / year | Starting at $5.000,00 / year | Starting at $659.00 / year | Enterprise only | Enterprise only |
Are Content Security Policy (CSP) enough to be PCI 6.4.3 & 11.6.1 compliant or stop attacks at all?
CSP products let you list "good" domains and tell the browser to block everything else. That stops obvious out-of-scope hosts and ticks PCI 6.4.3, but it never looks at the JavaScript itself. If an attacker slips bad code onto an approved CDN CSP would not catch it.
cside works the other way around: every third-party script is fetched through our edge, hashed, scanned, and either served clean or blocked before the browser sees it. Because we keep the full payload and header record, we also cover PCI 11.6.1 without any manual lists to maintain.
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
Why cside Outperforms Every Alternative
Our hybrid proxy delivers advantages traditional tools can't match.
vs. Crawler-Based Solutions
- Sees real user behavior, not sanitized crawler views
- Catches attacks aimed at specific segments
- Detects threats between periodic scans
vs. Content-Security Policy (CSP)
- Monitors script payloads, not just sources
- Detects breaches at trusted third-party providers
- Handles dynamic scripts CSPs can't control
vs. Client-Side Agents
- Undetectable monitoring attackers can't bypass
- Complete historical script behavior tracking
- Future-proof against evolving techniques
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). cside 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.
in image: cside CSP REPORT DASHBOARD
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
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