SiteScanAPI
Automate your security headers check with our website security scanner API. Instant header checker for HSTS, CSP, securityheader rules, and header security.
Automate your security headers check with our website security scanner API. Instant header checker for HSTS, CSP, securityheader rules, and header security.
This page is designed to help you find out whether SiteScanAPI is good and if it is the right choice for you.
SiteScanAPI is a fast, developer-first website security scanner and edge REST API engineered to audit defensive HTTP headers, DNS configurations, and perimeter security posture in under 250ms.
Unlike heavy, intrusive vulnerability scanners that risk production downtime, SiteScanAPI performs 100% passive HTTP and DNS-over-HTTPS (DoH) inspection. It evaluates your web perimeter against modern OWASP, W3C, and RFC standards with zero friction and no API keys required.
Key Capabilities:
• Comprehensive HTTP Header Auditing: Rigorous checks for Strict-Transport-Security (HSTS with preload verification), Content-Security-Policy (CSP), X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy.
• Origin Isolation & Next-Gen Headers: Verification of COOP (Cross-Origin-Opener-Policy), COEP (Cross-Origin-Embedder-Policy), and CORP.
• Stack Fingerprint & Info Leak Detection: Detects exposed Server, X-Powered-By, and framework version banners that attackers exploit.
• DNS & Email Authentication: Parallel DNS-over-HTTPS lookups for RFC-compliant SPF and DMARC policies.
• Coordinated Disclosure Audit: Scans for RFC 9116 /.well-known/security.txt compliance.
• Cookie Security Flags: Checks Secure, HttpOnly, and SameSite parameters.
• Automated Server Remediation: One-click copy-paste configuration snippets for Nginx, Apache, Caddy, Cloudflare, Astro, and Next.js.
• Free Developer REST API: Sub-250ms JSON endpoint built on Cloudflare Workers edge architecture, ready for CI/CD pipelines, DevSecOps workflows, and uptime monitoring without registration hurdles.
Listed in
Security headers audit
Deterministic checks for HSTS preloading, CSP, X-Frame-Options, Referrer, and Permissions policies.
Developer REST API
Zero-authentication JSON endpoint with <250ms edge latency for CI/CD pipelines and DevSecOps.
DNS & Email Security
Real-time DNS-over-HTTPS (DoH) verification for RFC-compliant SPF and DMARC records.
Automated Fix Generation
Ready-to-paste remediation snippets for Nginx, Apache, Caddy, and Cloudflare rules.
Origin Isolation & Leaks
Verifies COOP/COEP isolation and detects server stack fingerprint leaks (Server, X-Powered-By).
SiteScanAPI bridges the gap between manual header checkers and complex, heavy vulnerability scanners. It is 100% passive, zero-auth, and runs entirely on global edge infrastructure (Cloudflare Workers) to deliver deterministic perimeter security audits in under 250 milliseconds.
Unlike traditional tools that only look at a handful of legacy HTTP headers, SiteScanAPI inspects the complete perimeter: • Comprehensive Headers: Strict-Transport-Security with preload validation, Content-Security-Policy (CSP), X-Frame-Options, and Referrer-Policy. • Next-Gen Origin Isolation: Verification of COOP, COEP, and CORP browser sandboxing boundaries. • DNS-over-HTTPS (DoH) Security: Real-time email authentication audits for RFC-compliant SPF and DMARC records. • Information Leak Detection: Stripping server banners (Server, X-Powered-By). • RFC 9116 Compliance: Verification of /.well-known/security.txt disclosure files. • Automated Remediation: Generates instant copy-paste configuration directives for Nginx, Apache, Caddy, Cloudflare, and modern frameworks.
Most competing security scanners suffer from three major drawbacks: they are slow (waiting in multi-second queues), lack a developer REST API, or require cumbersome account signups with paywalled API keys.
Developers and security teams choose SiteScanAPI because: 1. Zero-Auth REST API: You can query https://sitescanapi.com/api/scan?url=yourdomain.com right from curl, CI/CD pipelines, or monitoring bots without API keys, tokens, or sign-up walls. 2. Edge Performance (<250ms): Audits complete almost instantly from the closest global edge node. 3. Non-Intrusive & Zero Downtime Risk: 100% passive HTTP and DNS interrogation ensures your firewalls aren't tripped and production uptime is never jeopardized. 4. Ready-to-Paste Fixes: Instead of just reporting warnings, SiteScanAPI produces exact server configuration snippets so you can fix failing grades in minutes.
The primary audience consists of: • Web Developers & Full-Stack Engineers: Who want to verify that production deployments enforce modern defensive headers like HSTS and CSP. • DevOps & DevSecOps Engineers: Who need a lightweight, zero-key REST API to gate release builds in GitHub Actions, GitLab CI, or deployment webhooks. • Security Analysts & Penetration Testers: Looking for instant, passive reconnaissance on target domains before conducting in-depth assessments. • Digital Agencies & Webmasters: Auditing client web applications for SSL/TLS, email spoofing (SPF/DMARC), and vulnerability disclosure compliance.
SiteScanAPI is engineered for ultra-low latency, resilience, and minimal client overhead using: • Cloudflare Workers / Edge Runtime: Powers both the globally distributed scanning engine and the sub-250ms REST API. • Astro (v7): Delivers zero-JS editorial performance, rapid static rendering, and server-side edge rendering. • TypeScript: Type-safe RFC evaluation logic and deterministic scoring algorithms. • React 19: Powers the real-time interactive Scanner Dashboard island. • Tailwind CSS (v4): Custom editorial design system engineered for visual clarity and accessibility. • DNS-over-HTTPS (DoH): Cryptographic DNS queries for real-time SPF and DMARC email security validation.
Over 60% of production websites fail basic defensive security audits—not because engineering teams don't care about security, but because perimeter configurations are fragmented across dozens of RFCs, W3C drafts, and server syntaxes.
Existing diagnostic tools were built a decade ago: they were clunky, loaded with ads, slow to respond, and lacked a simple API that could easily fail a build in modern CI/CD pipelines.
SiteScanAPI was built with a clear mission: to democratize perimeter web security. By leveraging modern edge computing, we made defensive security audits instant, deterministic, developer-first, and completely accessible to every engineer without friction or cost barriers.
We have collected here some useful links to help you find out if SiteScanAPI is good.
Check the traffic stats of SiteScanAPI on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of SiteScanAPI on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of SiteScanAPI's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of SiteScanAPI on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about SiteScanAPI on Reddit. This can help you find out how popualr the product is and what people think about it.
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Is SiteScanAPI good? This is an informative page that will help you find out. Moreover, you can review and discuss SiteScanAPI here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.
