HTTP Headers

Show the HTTP headers for a URL, with a full break-down of details. Will follow redirects.

Summary

Response
404
Total Requests
1
Total Time
457 ms

  • https://md.un-hack-bar.de/s/eHmmw3zq8I

    Status
    404
    Message
    Not Found
    Time
    457 ms
  • IP
    5.189.181.137
    View Map

  • Timing

    Wait

    0 ms

    DNS

    53 ms

    TCP

    118 ms

    Request

    1 ms

    First Byte

    141 ms

    Download

    1 ms

    Total

    457 ms

  • HTTP Headers

    Content-Length

    11845(11.8 kB)

    The length of the response body in octets (8-bit bytes).

    Content-Security-Policy

    default-src 'none';base-uri 'self';connect-src 'self' ws://md.un-hack-bar.de https://vimeo.com/api/v2/video/;font-src 'self';manifest-src 'self';frame-src 'self' https://player.vimeo.com https://www.youtube.com https://gist.github.com *;img-src * data:;script-src http://md.un-hack-bar.de/build/ http://md.un-hack-bar.de/js/ http://md.un-hack-bar.de/config 'unsafe-inline' 'nonce-566bb261-822b-413d-85c7-164c5c5d626d' 'sha256-81acLZNZISnyGYZrSuoYhpzwDTTxi7vC1YM4uNxqWaM=';style-src http://md.un-hack-bar.de/build/ http://md.un-hack-bar.de/css/ 'unsafe-inline';object-src * *;form-action 'self';media-src *

    The content security policy allows the server to determine what resources the user is allowed to load.

    • Default-Src

      Fallback for all fetches.

      • 'none'

    • Base-URI

      Define what can be used in the base element.

      • 'self'

    • Connect-Src

      Define sources for script interfaces.

      • 'self'
      • ws://md.un-hack-bar.de
      • https://vimeo.com/api/v2/video/

    • Font-Src

      Define sources for fonts.

      • 'self'

    • Manifest-Src

      Define sources for manifest files.

      • 'self'

    • Frame-Src

      Define sources for frames.

      • 'self'
      • https://player.vimeo.com
      • https://www.youtube.com
      • https://gist.github.com
      • *

    • Img-Src

      Define sources for images and favicons.

      • *
      • data:

    • Script-Src

      Define sources for JavaScript.

      • http://md.un-hack-bar.de/build/
      • http://md.un-hack-bar.de/js/
      • http://md.un-hack-bar.de/config
      • 'unsafe-inline'
      • 'nonce-566bb261-822b-413d-85c7-164c5c5d626d'
      • 'sha256-81acLZNZISnyGYZrSuoYhpzwDTTxi7vC1YM4uNxqWaM='

    • Style-Src

      Define sources for stylesheets.

      • http://md.un-hack-bar.de/build/
      • http://md.un-hack-bar.de/css/
      • 'unsafe-inline'

    • object-src

      Define sources for object, embed, and applet elements.

      Problems were found.

      • Duplicate value detected.
      • *

        Duplicated value.

      • *

        Duplicated value.

    • Form-Action

      Define what can be used as the target for forms.

      • 'self'

    • Media-Src

      Define sources for audio, video, and track elements.

      • *
    Content-Type

    text/html; charset=utf-8

    The MIME type of this content.

    Problems were detected with this header

    • Unknown MIME type.
    Date

    Sun, 18 Oct 2026 15:55:06 GMT

    The date and time that the message was sent.

    Etag

    W/"2e45-NhQH34slokcla6IzzG1jRKwOWkY"

    An identifier for a specific version of a resource.

    • Validator

      weak

      A weak tag is easier to generate and prevents byte range caching.

    • Tag

      2e45-NhQH34slokcla6IzzG1jRKwOWkY

    Hedgedoc-Version

    1.12.0

    Referrer-Policy

    same-origin

    Controls what referrer information is sent with requests.

    same-origin - Send the full referrer for same origin requests, and nothing for cross-origin.

    Set-Cookie

    connect.sid=s%3APxCJmV08XJiP26vNw8gnHzO_PUvIX1-S.oVpuz5fQa%2FrkqYgH9jxGzIwDzbiIdQIzdaN9SfIdnTU; Path=/; Expires=Sun, 01 Nov 2026 15:55:06 GMT; HttpOnly; SameSite=Lax

    A cookie sent from the server to be set on the client

    • connect.sid

      s%3APxCJmV08XJiP26vNw8gnHzO_PUvIX1-S.oVpuz5fQa%2FrkqYgH9jxGzIwDzbiIdQIzdaN9SfIdnTU

      Cookie name and value.

    • Path

      /

      The client will only send the cookie when requesting this path, or subdirectories, from the server.

    • Expires

      Sun, 01 Nov 2026 15:55:06 GMT

      When the cookie should expire.

    • HttpOnly

      Prevents access to the cookie through JavaScript.

    • Samesite

      Lax

      Cookie is not sent on cross-site requests but is when following a link to the origin.

    Strict-Transport-Security

    max-age=31536000; includeSubDomains

    A HSTS Policy informing the HTTP client how long to cache the HTTPS only policy and whether this applies to subdomains.

    • Max-Age

      31536000 (1 year)

      The time a browser should remember a site can only be accessed with https (seconds).

    • includesubdomains

      max-age applies to subdomains as well.

    Vary

    Accept-Encoding

    Indicates that different content may be provided to different clients, depending on the vary header.

    • Headers

      • Accept-Encoding
    X-Powered-By

    Express

    The software powering this site.