Pricing

$5.00 / 1,000 url auditeds

HTTP Protocol & Compression Audit

Audit how a URL is served: HTTPS, HTTP/2, HTTP/3 (Alt-Svc), Brotli vs gzip compression, cache headers, ETag, HSTS. Returns A-F grade + perf punch-list. Use for web performance audits, CDN verification, hosting QA. Input: url or urls[]. Output: JSON report.

Pricing

$5.00 / 1,000 url auditeds

Rating

0.0

(0)

Developer

Coleton Patton

Actor stats

Bookmarked

Total users

Monthly active users

4 days ago

Last modified

What it checks

Check	Why it matters
HTTPS	Modern baseline; required for HTTP/2 + HTTP/3
HTTP/2 / HTTP/3 (Alt-Svc)	Repeat-visit speedup, esp. on flaky networks
Brotli vs gzip vs none	Brotli saves 15-25% over gzip; "none" leaves 70% on the table
Cache-Control	Default browser caching is suboptimal
ETag + Last-Modified	Skip costly re-downloads on 304 responses
HSTS	Prevent first-visit downgrade attacks
Server fingerprint	Helps lead-gen for managed-hosting consultancies

Input

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

Output

{
  "url": "...",
  "grade": "B",
  "score": 75,
  "protocol": {
    "isHttps": true,
    "altSvc": "h3=\":443\"; ma=86400",
    "supportsH3": true,
    "server": "Cloudflare"
  },
  "compression": {
    "type": "br",
    "contentEncoding": "br",
    "sizeBytesReceived": 12340
  },
  "caching": {
    "cacheControl": "public, max-age=3600",
    "etag": "present",
    "lastModified": "missing"
  },
  "security": {
    "hsts": "max-age=31536000; includeSubDomains"
  },
  "issues": []
}

Use cases

Perf consultants — qualify prospects by which servers can be sped up with config-only fixes
Hosting migration prep — verify the new CDN actually does what was promised
Infrastructure audits — find every server still on HTTP/1.1
Lead enrichment — find sites running gzip → propose a Brotli config

Pricing

Pay-per-result: $0.005/URL. Fetch-only.

Author

Built by Peak Post. Part of the Web Performance Suite alongside Web Vitals Reporter and PWA Audit.

Image Compression API

vivid_astronaut/image-compression

Fabio Suizu

HTTP Compression Checker

scrappy_garden/http-compression-checker

Checks whether a URL serves compressed responses (br/gzip/deflate) and validates related headers such as Vary: Accept-Encoding for cache correctness. Outputs per-URL results plus SUMMARY and REPORT.

Bikram Adhikari

HTTP Security Headers Audit

mbeato/apimesh-security-headers

Audit 10 HTTP security headers with A+ to F grading. Checks CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and more.

Maximus Beato

Security Headers Scanner

pattonholdings/security-headers-scanner

Scan HTTP security headers for any URL. Returns A+ to F grade, per-header pass/weak/missing status (CSP, HSTS, X-Frame-Options), and Nginx/Apache/Express/Cloudflare fix snippets. Use for security audits, compliance checks, vendor review. Input: url or urls[]. Output: JSON grade report.

Coleton Patton

HTTP Security Headers Analyzer

andok/security-headers-analyzer

Audit HTTP response headers (CSP, HSTS, X-Frame-Options) to verify web application security and compliance standards.

Andok

HTTP Headers Security Audit

techionik9993/http-headers-security-audit

Audit public websites for important HTTP security headers and export practical risk scores, missing headers, and improvement notes for security, SEO, and QA workflows.

Techionik

Cache-Control Header Checker - Audit HTTP caching configuration

scrappy_garden/cache-control-checker

Audit HTTP caching response headers (Cache-Control, Expires, ETag, Last-Modified, Vary, Age). Optionally tests conditional revalidation using If-None-Match / If-Modified-Since. Useful for web performance tuning and debugging CDN/browser caching behavior.

Bikram Adhikari

Image Alt-Text Auditor

pattonholdings/image-alt-auditor

Audit image alt text on any URL for WCAG 1.1.1 accessibility: missing alt, suspect empty alt, filename-as-alt, overlong alt. Returns pass rate + A-F grade + per-image flags. Use for a11y compliance audits, SEO image checks. Input: url or urls[]. Output: JSON report.

Coleton Patton

Website Health Report

automation-lab/website-health-report

Run a full website health audit in seconds. Checks HTTP, SSL, DNS, security headers, meta tags, and performance for up to 200 URLs per batch. Returns a 0-100 health score with A-F grades per category.

Stas Persiianenko

HTTP Security Headers & OWASP Posture Auditor

gp005/security-headers-auditor

Audit HTTP security response headers (CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP/COEP/CORP) for any URL. Returns a 0-100 grade, letter rating, and a prioritized fix list with exact header values to add. Single polite GET per URL, no crawling.