Acunetix handles this with —often called "DNS-based detection" or "collaborator channels."
This crawler executes JavaScript, waits for async calls, fills out forms dynamically, and maps the entire DOM. It doesn't just scan page.php?id=1 ; it scans /#/dashboard/user/settings and every hidden API endpoint triggered by a button click.
You can discover a critical SSRF vulnerability without crashing the server or waiting for logs to rotate. 4. Smart Authentication: Login Sequence Recording Scanning an authenticated area is traditionally a nightmare. Token rotation, CSRF tokens, multi-step logins, and CAPTCHAs break most scanners.
For organizations running web applications in 2025—whether legacy PHP monoliths or serverless Next.js deployments—Acunetix offers one critical promise: You will only be alerted to vulnerabilities that actually exist. Word count: ~750 Target audience: Security engineers, DevOps leads, AppSec managers.