Software Alternatives & Startups

Security Headers VS SiteScanAPI

Compare Security Headers VS SiteScanAPI and see what are their differences

Security Headers

Quickly and easily assess the security of your HTTP response headers.

SiteScanAPI

Automate your security headers check with our website security scanner API. Instant header checker for HSTS, CSP, securityheader rules, and header security.

Rating
0 reviews
Pricing
Free

Which is more popular?

Based on our record, Security Headers seems to be more popular. It has been mentioned 70 times since March 2021.

social mentions
70 vs 0
Web Application Security popularity
100% vs 0%
alternatives listed
152 vs 16

Base details

Website, pricing, platforms and company facts side by side.

Security Headers
SiteScanAPI
Website securityheaders.com sitescanapi.com
Pricing —
Platforms —
Web REST API SaaS Cloud +1
Listed in

About Security Headers and SiteScanAPI

In their own words, as submitted to SaaSHub.

Security Headers
SiteScanAPI

No description of Security Headers yet.

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%...

Read more about SiteScanAPI

Features and specs

What each product offers, as listed by its team.

Security Headers 4 features
SiteScanAPI 5 features
  • Enhanced Security
    Security Headers significantly improve your web application's security by protecting against common vulnerabilities like XSS, Clickjacking, and MIME sniffing.
  • Quick Assessment
    The tool provides a fast evaluation of the headers implemented on your website, helping you quickly identify missing or misconfigured headers.
  • Easy to Use
    Security Headers is user-friendly and does not require advanced technical skills, making it accessible for both developers and security professionals.
  • Free Tool
    The service is free to use, allowing widespread access and enabling users to improve web security without financial barriers.

Possible disadvantages

  • Limited Scope
    Security Headers focuses only on HTTP headers, which means it does not provide a comprehensive security assessment of the entire application or network.
  • No Dynamic Content Testing
    The tool does not test dynamic content and runtime security issues, potentially overlooking vulnerabilities that occur only after initial page load.
  • No Detailed Remediation Guidance
    While the tool identifies missing headers, it does not provide detailed guidance on how to implement or configure them, requiring further research.
  • Potential for False Sense of Security
    Relying solely on this tool may lead to a false sense of security, as there are many other security aspects that need to be addressed to secure a web application fully.
  • 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).

Videos

Walkthroughs and reviews on video.

Security Headers 2 videos + Add
SiteScanAPI 0 videos + Add

HTTP Security Headers | Part 01

More videos

  • - HTTP Security Headers In Action - Sven Morgenroth - PSW #652

No SiteScanAPI videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Security Headers
SiteScanAPI
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing Security Headers and SiteScanAPI.

What makes your product unique?

SiteScanAPI's answer:

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.

Why should a person choose your product over its competitors?

SiteScanAPI's answer:

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.

How would you describe the primary audience of your product?

SiteScanAPI's answer:

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.

Which are the primary technologies used for building your product?

SiteScanAPI's answer:

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.

What's the story behind your product?

SiteScanAPI's answer:

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.

Who are some of the biggest customers of your product?

SiteScanAPI's answer:

  • Independent SaaS Founders & Startups
  • Digital Web Agencies & Managed Service Providers
  • DevSecOps Teams Automating CI/CD Release Gates
  • Open-Source Project Maintainers
  • Cloudflare & Vercel Edge Application Developers
  • Cybersecurity Consultants & Penetration Testers

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Security Headers 5.0 · 1 review
SiteScanAPI no reviews yet

We have no reviews of SiteScanAPI yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Security Headers 70 mentions
SiteScanAPI 0 mentions
  • I chose modern OAuth for Trello. Then rolled back to a key and token.
    Since we were back in the security settings anyway, Claude and I went through the whole guide: added headers, set up CSP with no inline scripts, no-store. The securityheaders.com score went from F to A+. - Source: dev.to / 18 days ago
  • The Security Checklist Every Vibe Coder Needs Before Launch
    Check: Go to securityheaders.com and enter your URL. A grade below B means you're missing important ones. - Source: dev.to / 5 months ago
  • Four HTTP security headers every WordPress site should set
    The curl above is the fastest check; all four lines should come back. In a browser, DevTools, Network tab, click the document request, read Response Headers. For a letter grade, securityheaders.com scores you against a known rubric. One... - Source: dev.to / 5 months ago

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Tracking SiteScanAPI since Nov 2026.

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