Pricing

$20.00 / 1,000 headers checkeds

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HTTP Security Headers Checker

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Pricing

$20.00 / 1,000 headers checkeds

Rating

0.0

(0)

Developer

Anthony Snider

Actor stats

Bookmarked

Total users

Monthly active users

3 days ago

Last modified

What it checks

Strict-Transport-Security (HSTS) — forces HTTPS
Content-Security-Policy — mitigates XSS/injection
X-Frame-Options — prevents clickjacking
X-Content-Type-Options — stops MIME sniffing
Referrer-Policy — controls referrer leakage
Permissions-Policy — restricts powerful browser features

Returns an A–F grade + score, the headers present (with values), and the missing ones with why each matters.

Input

{ "url": "https://example.com" }

or bulk:

{ "urls": ["https://a.com", "https://b.com"], "maxUrls": 25 }

Output (per URL)

{
  "url": "https://example.com",
  "grade": "B",
  "securityScore": 66,
  "present": [{ "header": "Strict-Transport-Security (HSTS)", "value": "max-age=31536000" }],
  "missing": [{ "header": "Content-Security-Policy", "why": "Mitigates XSS and content-injection" }],
  "summary": "B (66/100) — 2 missing"
}

Use cases

Security audits, compliance checks, and pre-launch hardening — by hand or wired into a CI/agent pipeline. Pairs with our SEO & Tech Auditor and Broken Link Checker.

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