Paste the response headers of any website - from curl, DevTools or a server log - and get them parsed, explained and audited: status line, cookie flags, caching and a security score. Nothing is uploaded.
curl -sI https://example.com
Response headers tell you how a server delivers a page: the status code, the content type, how long browsers may cache it, which cookies it sets and whether it enforces HTTPS. This analyzer reads a pasted header block, splits every field, explains what it does and groups the result into security, caching, content, cookie and CORS headers. It also scores the response against the headers that matter in practice - HSTS, Content-Security-Policy, X-Content-Type-Options, clickjacking protection, Referrer-Policy and cookie flags - and marks each one as passed, warning or failed with a short reason. Paste the output of curl -sI https://example.com, the response headers from the browser DevTools or a log line from nginx, Apache or Cloudflare. Everything is parsed locally in JavaScript, so internal hostnames and session cookies never leave your device. Browsers cannot read another site's response headers directly, because CORS hides them - which is exactly why this tool works from the copied header block.
Free online utility tools. No signup. No tracking.
Impressum · Sitemap · Some links contain affiliate advertising
Nutzung auf eigene Gefahr. Diese Tools werden kostenlos und ohne Gewährleistung für Richtigkeit, Vollständigkeit, Verfügbarkeit oder Eignung für einen bestimmten Zweck bereitgestellt; Ergebnisse sind keine professionelle Beratung. Die gesetzliche Haftung — insbesondere für Vorsatz, grobe Fahrlässigkeit sowie für Verletzungen von Leben, Körper oder Gesundheit — bleibt unberührt.
Use at your own risk. These tools are provided free of charge without any warranty of accuracy, completeness, availability or fitness for a particular purpose; results are not professional advice. Statutory liability — in particular for intent, gross negligence and injury to life, body or health — remains unaffected.
Uso bajo su propio riesgo. Estas herramientas se ofrecen de forma gratuita y sin garantía de exactitud, integridad, disponibilidad o idoneidad para un fin determinado; los resultados no constituyen asesoramiento profesional. La responsabilidad legal — en particular por dolo, negligencia grave y daños a la vida, el cuerpo o la salud — no se ve afectada.
Utilisation à vos propres risques. Ces outils sont fournis gratuitement, sans garantie d’exactitude, d’exhaustivité, de disponibilité ou d’adaptation à un usage particulier ; les résultats ne constituent pas un conseil professionnel. La responsabilité légale — notamment en cas de dol, de négligence grave et d’atteinte à la vie, au corps ou à la santé — reste inchangée.