Control scripts, enforce policies, and filter unsafe HTML before it reaches the browser — no backend changes required.
Your server response
Blocks · filters · enforces policies
Safe, validated output
Only approved content
Backend security protects your server. But what actually reaches the browser — the final HTML, scripts, and markup delivered to users — is often uncontrolled. Third-party scripts, injected elements, and policy violations happen at the delivery layer, where most security tools have no visibility.
Analytics, ad networks, and tag managers load scripts you didn't write. Any one of them can be compromised — and your users are exposed.
What leaves your origin isn't necessarily what reaches the browser. Injections, modifications, and appended markup happen invisibly.
Content Security Policy is static, hard to maintain, and breaks functionality. It lacks the flexibility to respond dynamically to new threat patterns.
XSS, script injection, and markup manipulation happen at the delivery layer — after backend security has already checked out.
Security teams monitor servers and APIs. But there's no systematic inspection of the HTML response actually delivered to each user.
Blocking a compromised script or removing a risky element requires a deployment. By then, users have already been exposed.
NinjaWeb5 operates between your origin and the browser — inspecting every HTML response, applying security rules, blocking unsafe content, and enforcing policies before a single byte reaches users.
Core differentiation
"Backend security protects your server. Ninja protects what users actually see."
Protects your servers, APIs, and databases from external attacks. Essential — but stops at the origin. What gets assembled and sent to the browser is a different problem entirely.
Controls the actual HTML response delivered to users. Sits between origin and browser — inspecting, filtering, and enforcing policies on what users really see. Complements backend security with a delivery layer.
Define exactly which scripts are allowed to reach the browser. Block, remove, or replace script tags based on source domain, pattern, or inline content — before the page is rendered.
Apply security policies directly to HTML output — more flexible and maintainable than static CSP headers. Define allowed domains, permitted script types, iframe rules, and inline script handling as dynamic edge rules.
Scan HTML responses for patterns associated with known attack vectors. Detect inline scripts, suspicious attributes, unexpected DOM elements, and markup anomalies — and alert or block before delivery.
Filter and sanitize HTML responses before they leave the delivery layer. Remove harmful elements, clean user-generated content, strip unauthorized markup, and protect against injection — all without origin changes.
Route your domain through NinjaWeb5 via DNS or proxy. Origin stays unchanged.
Set policies — which scripts are allowed, which elements must be filtered, what patterns trigger a block.
Ninja evaluates every response against your rules — scanning for scripts, policies, and risky markup.
Matching elements are blocked, removed, replaced, or flagged. Output is sanitized before delivery.
Only approved, filtered HTML reaches the browser. Activate or adjust rules instantly — no deploy needed.
Select a security scenario and see the before / after HTML — with blocked, removed, or sanitized elements highlighted.
A third-party CDN is compromised. Block the offending script domain with a single rule — no deploy, no downtime. Users are protected within seconds of activation.
Ensure GDPR consent banners render correctly, cookie scripts load in the right order, and no unauthorized tracking fires before user consent. Policy enforced at the edge, not hoped for in code.
User-generated content, CMS fields, and legacy template output often contain unsafe markup. Filter risky elements before they reach the browser — across thousands of pages.
Analytics providers, tag managers, and ad networks are high-value attack targets. Set policy rules that control what they can and can't do in your delivery layer — without removing them entirely.
Define exactly which analytics vendors are permitted, what script attributes are allowed, and which domains can load resources — with rules that update in seconds, not sprint cycles.
Detect and strip unexpected DOM elements — banners, overlays, or markup injected by browser extensions, compromised plugins, or supply chain issues — before they reach real users.
| Challenge | Traditional Security | NinjaWeb5 Edge Security |
|---|---|---|
| Security focus | Backend — servers, APIs, databases | Frontend output — what reaches the browser |
| Script policy | Static CSP headers — brittle, hard to maintain | Dynamic rules — flexible, updatable in seconds |
| HTML visibility | No inspection of final browser-bound output | Full HTML response inspection at delivery |
| Threat response | Requires deployment to block new threats | Instant rule activation — no deployment |
| Third-party control | Limited — load or don't load | Granular — allow, block, modify, monitor |
| Compliance enforcement | Manual process, CMS-dependent | Policy enforced at the edge — consistent |
Shrink the frontend risk area at the delivery layer.
See exactly what HTML reaches users — for the first time.
Security policies go live in seconds, not sprint cycles.
Block a threat the moment it's detected, not after release.
Security applied at delivery — not hoped for in backend code.
Control scripts, enforce policies, and filter HTML output
before it reaches your users — no backend changes required.