Security Headers Grader — one row per domain

HTTP Probe -- TLS, Security Headers, Redirects

jungle_synthesizer/ssl-security-headers-checker

Bulk site-health probe: TLS certificate, security-header grading (CSP, HSTS, X-Frame-Options, Permissions-Policy + 5 others, A/B/C/D/F grade), redirect chain, TTFB, HTTP/2 + HTTP/3, IPv6 reachability. Built for devops, security, and CI pipelines.

Website Tech Stack Detector — 100+ Technologies

ryanclinton/website-tech-stack-detector

Identify the technologies, frameworks, and services running on any website. Website Tech Stack Detector crawls one or more URLs, inspects HTTP headers, HTML meta tags, script sources, and body content, then matches them against a fingerprint database of 106 web technologies across 17 categories.

HTTP Security Headers Checker — HSTS, CSP, Grade A-F

ninhothedev/security-headers-checker

$1/1K 🔥 Fast HTTP security headers checker! HSTS, CSP, X-Frame & a grade for any URL. No key. JSON, CSV, Excel or API in seconds. Paste URLs & audit thousands of sites for security & compliance ⚡

Domain Health Audit: DNS, WHOIS, SSL, SPF, DKIM & DMARC

apifmcpfactory/domain-health-audit

Audit 1 to 5,000 domains for DNS, WHOIS, SSL, HTTP and email-authentication problems, and get the exact DNS records to publish to fix each one. Scored, exportable, with a client-ready report. Validated against RFC 9989. For people and AI agents.

Full Site Health Suite

zaden/full-site-health-suite

Runs SEO, sitemap, broken-link, SSL, email/DNS, structured-data, accessibility, domain-expiry, and RSS checks on a site in one job. Get a single letter grade and severity-ranked issue list instead of nine separate reports. Only need one check? Each of the 9 is also sold standalone.

Check any website's security-relevant HTTP response headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and more) and get an A-F letter grade in one request. No key, no browser, just the live headers a browser would see.

Bulk HTTP Security Headers Analyzer - CSP, HSTS

logiover/bulk-http-security-headers

Analyze HTTP security headers for thousands of URLs. Checks CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and more. Returns pass/fail per header plus a numeric security score. No API key, export to CSV/JSON. Ideal for security audits and compliance scanning.

Bulk-profile URLs: final URL & status, title/meta/Open Graph, server + security headers, and tech hints. One JSON row per URL.

Detect a website's tech stack with a real browser: CMS, ecommerce, frameworks, CDN, analytics and pixels. Returns the version and how old it is, which trackers really fire, security headers, cookies set before consent — and the evidence for every detection.