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
58 ms
  • IP
    75.2.0.180
    View Map

  • Timing

    Wait

    0 ms

    DNS

    4 ms

    TCP

    2 ms

    Request

    0 ms

    First Byte

    29 ms

    Download

    1 ms

    Total

    58 ms

  • HTTP Headers

    Server

    nginx

    A name for the server.

    nginx - Description of the server software.

    Date

    Wed, 20 Aug 2025 23:02:31 GMT

    The date and time that the message was sent.

    Content-Type

    text/html;charset=UTF-8

    The MIME type of this content.

    • Type

      text/html

    • Description

      HTML file

    • Charset

      UTF-8

    Vary

    Accept-Encoding

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

    • Headers

      • Accept-Encoding
    Vary

    accept-encoding

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

    • Headers

      • accept-encoding

    Problems were detected with this header

    • Duplicate header. There is another header with this name and this may cause problems.
    Cache-Control

    no-cache, no-store, must-revalidate

    Inform all caching mechanisms from server to client whether they may cache this object.

    • no-cache

      May be stored by any cache but must be validated by the server.

    • no-store

      May not be stored by any cache.

    • must-revalidate

      Stale caches must not be used.

    Expires

    Thu, 01 Jan 1970 00:00:00 GMT

    The time at which the response is considered stale.

    X-Content-Type-Options

    nosniff

    Prevents Internet Explorer from MIME-sniffing a response away from the declared content-type.

    nosniff - Block requests if type 'style' or 'script'.

    Strict-Transport-Security

    max-age=31536000; preload

    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).

    • preload

      Use Google's preloading strict transport security.

    D-Geo

    US

    Connection

    close

    Control options for the current connection and list of hop-by-hop response fields.

    close - The client or server would like to close the connection.