HTTP Headers Analyzer
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| Header | Value | Explanation |
|---|---|---|
| server | angie | Identifies the software used by the origin server to handle the request (e.g. Apache, Nginx, Cloudflare). Notice Consider removing or minimizing the Server header. Even without a version number, it reveals the server software, which aids reconnaissance. |
| date | fri, 16 oct 2026 15:01:00 gmt | The date and time at which the request was made. A browser uses it for age calculations rather than using its own internal date and time; e.g. when comparing against Max-Age or Expires. |
| content-type | text/html; charset=utf-8 | The type of the message body, specified as a MIME type. |
| content-security-policy | script-src 'nonce-g/polzy5yg/y98/dv4mzsw=='; style-src 'unsafe-inline' | The Content Security Policy (CSP) header helps prevent cross-site scripting (XSS), clickjacking, and other code injection attacks by specifying which dynamic resources are allowed to load.script-src specifies valid sources for JavaScript. This includes not only URLs loaded directly into <script> elements, but also things like inline script event handlers (onclick) and XSLT stylesheets which can trigger script execution.style-src defines what CSS stylesheets are allowed to be loaded.Notice Consider adding the upgrade-insecure-requests directive to automatically upgrade HTTP requests to HTTPS, helping to prevent mixed content issues.Notice unsafe-inline in style-src allows inline styles. This is common and lower risk than inline scripts, but nonces or hashes provide stronger protection.Notice No default-src directive is set. Without it, directives that are not explicitly defined have no fallback restriction.Notice Consider adding base-uri 'self' or base-uri 'none' to prevent base tag injection, which can redirect relative URLs to an attacker-controlled domain. |
| content-encoding | gzip | Specifies how the resource is compressed. Not to be confused with Transfer-Encoding which specifies how the data is transferred.gzip means that the data is compressed with gzip.Warning Add a Content-Length header. The Content-Length header is required, unless the message is transported using chunked encoding. Without a Content-Length header some servers will respond with 400 (bad request) or terminate connections early. |
| strict-transport-security | missing Add a Strict-Transport-Security header. The Strict-Transport-Security header or HSTS header is used to instruct browsers to only use HTTPS, instead of using HTTP. It helps enforce secure communication. |
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| referrer-policy | missing Add a Referrer-Policy header. When a visitor navigates from one page to another, browsers often pass along referrer information. The Referrer-Policy header controls how much referrer information a browser can share. This is important to configure when private information is embedded in the path or query string and passed onto an external destination. |
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| permissions-policy | missing Add a Permissions-Policy header. Restrict access to device features like the camera, microphone, location, accelerometer and much more. |
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| cross-origin-embedder-policy | missing Add a Cross-Origin-Embedder-Policy header. It requires cross-origin resources to explicitly consent before this page can load them, protecting those resources from being exposed to Spectre-style timing attacks. Together with Cross-Origin-Opener-Policy, it enables cross-origin isolation and access to SharedArrayBuffer. |
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| cross-origin-opener-policy | missing Add a Cross-Origin-Opener-Policy header. It prevents other sites from retaining a window reference to this page when opened via window.open() or navigation, blocking script-based attacks through shared browsing contexts. |
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| cross-origin-resource-policy | missing Add a Cross-Origin-Resource-Policy header. It controls which origins can embed or load this page's resources (images, scripts, etc.), preventing hotlinking and cross-origin data leaks. |
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| x-content-type-options | missing Add an X-Content-Type-Options: nosniff header to prevent browsers from MIME type sniffing. Without it, browsers may interpret files as a different content type than intended, which can lead to security vulnerabilities. |
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| x-permitted-cross-domain-policies | missing Add a X-Permitted-Cross-Domain-Policies header to prevent Flash, Adobe Reader and other clients from sharing data across domains. |