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Next.js SDK
Zero-Trust Edge Web Application Firewall (WAF), cryptographic HMAC verification, sliding-window rate limiting, and dynamic JSON-LD schemas for modern Next.js applications.
WebKernelAI Next.js SDK delivers embedded Edge WAF filtering, automated production security headers, cryptographic HMAC verification, and dynamic JSON-LD structured schemas across App Router and Pages Router with sub-millisecond execution.
Common Vulnerabilities
How The SDK Solves This
Zero Cold-Start Edge WAF
Sub-millisecond payload and query scanner built purely on the Web Crypto API with zero C++ native dependencies.
Automated Production Security Headers
Injects HSTS, Content-Security-Policy, X-Frame-Options, and Permissions-Policy on every response automatically.
Sliding-Window Edge Rate Limiting
Lightweight in-memory token-bucket rate limiter that throttles brute-force scrapers and DDoS bots per client IP.
Cryptographic Cloud Telemetry & Handshake
HMAC-SHA256 authenticated synchronization with WebKernelAI Cloud featuring 300s replay attack prevention.
Enter your Next.js domain to generate high-entropy CSPRNG credentials and live integration code.
// 1. Add to .env.local:
WEBKERNELAI_SITE_ID=YOUR_SITE_ID
WEBKERNELAI_PAIRING_SECRET=YOUR_PAIRING_SECRET_KEY
WEBKERNELAI_API_URL=https://api.webkernelai.com
// 2. In middleware.ts:
import { createWebKernelMiddleware } from '@webkernelai/next/middleware';
export const middleware = createWebKernelMiddleware({
siteId: process.env.WEBKERNELAI_SITE_ID,
pairingSecret: process.env.WEBKERNELAI_PAIRING_SECRET,
waf: { enabled: true, mode: 'block' }, // 'block' returns 403; 'monitor' attaches threat headers
rateLimit: { enabled: true, requestsPerMinute: 120 },
securityHeaders: true,
});
export const config = {
matcher: ['/((?!_next/static|_next/image|favicon.ico).*)'],
};Technical Benchmark
| Capability / Criterion | Traditional WAF / Solutions | WebKernelAI Next.js SDK |
|---|---|---|
| Runtime Architecture | Heavy Node.js middleware adding 50-100ms cold starts | Native Edge & Web Crypto compliant (< 0.5ms execution) |
| Installation Complexity | Complex reverse proxy DNS migration (Cloudflare / AWS CloudFront) | 1-line npm package (`npm install @webkernelai/next`) |
| Next.js Router Support | Limited to Pages router or fragile custom server wrappers | Full native support for App Router, Edge Middleware, and RSC |
| Security Headers & CSP | Requires manual header arrays in next.config.js for each route | Dynamic, automated production security headers injection |
| Threat Inspection Latency | High latency overhead on every incoming HTTP packet | < 0.5ms sub-millisecond memory footprint |
| Dashboard Visibility | Buried in separate cloud logs and CDN monitoring dashboards | Unified WebKernelAI cloud telemetry with live threat incidents |
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