Democratizing perimeter security headers for modern web teams.
SiteScanAPI was founded on a straightforward thesis: defensive HTTP security configurations should be instant, deterministic, zero-friction, and accessible to every engineer without intrusive penetration testing risks.
Why 60% of modern production web applications fail defensive security audits.
Engineering teams ship production features at breathtaking velocity. Continuous deployment pipelines push hundreds of micro-releases per week. Yet the defensive perimeter layer—the critical HTTP headers that instruct browsers how to safeguard your users—is consistently neglected.
Without Strict-Transport-Security with preload, users remain exposed to SSL-stripping attacks. Without a tailored Content-Security-Policy, cross-site scripting (XSS) and data exfiltration vectors stay wide open. Without X-Frame-Options, clickjacking attackers can iframe your checkout flow.
Legacy vulnerability scanners make auditing these problems painful: they take minutes to spin up, run invasive fuzzing attacks that trip web application firewalls (WAFs), or bury critical configuration missteps under thousands of lines of noisy PDF reports.
"SiteScanAPI was built to give every engineer an instant, authoritative, and non-intrusive lens into their perimeter posture in less than 250 milliseconds."
The Four Pillars of SiteScanAPI
Deterministic RFC Adherence
We never invent arbitrary proprietary scoring metrics. Every evaluation rule maps directly to canonical standards published by the Internet Engineering Task Force (IETF) and the World Wide Web Consortium (W3C), including RFC 6797 (HSTS), W3C CSP3, RFC 9116 (security.txt), and RFC 7489 (DMARC).
100% Passive & Non-Intrusive
SiteScanAPI executes only standard, polite HTTP GET/HEAD requests and public DNS-over-HTTPS queries. We never inject payloads, exploit vulnerabilities, or trigger intrusion alarms. You can safely run our audit against production environments without fear of outages.
Cloudflare Edge Micro-Architecture
Engineered natively for serverless edge execution across 300+ worldwide Cloudflare PoPs. Audits execute nearest to your target origins with zero cold starts, zero container initialization lag, and absolute cryptographic tenant isolation.
Actionable Fixes, Not Just Scores
A failing grade is useless without a path to resolution. For every detected omission, our engine automatically synthesizes verified, syntax-accurate configuration snippets for Nginx, Apache HTTPd, Cloudflare Workers, Caddy, and Vercel.
We hold ourselves to a strict 100/100 benchmark.
SiteScanAPI is configured with every defensive header we recommend to our users: HSTS with 2-year preload, strict CSP with nonce isolation, COOP, COEP, permissions isolation, and zero server header disclosures. Test our own infrastructure live right now.
Defensive security should be transparent, educational, and accessible.
Security is not a gated mystery meant for enterprise compliance consultants charging thousands for basic checkmarks. When web developers understand why upgrade-insecure-requests matters or why an omitted nosniff flag risks MIME confusion exploits, the entire internet becomes safer.
We will never monetize your scan results, will never display intrusive advertisements, and will continually maintain our public REST API as a free utility for developers worldwide.