HTTP Headers

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

Summary

Response
200
Total Requests
1
Total Time
1750 ms
  • IP
    149.255.62.79
    View Map

  • Timing

    Wait

    1 ms

    DNS

    273 ms

    TCP

    94 ms

    Request

    10 ms

    First Byte

    1271 ms

    Download

    1 ms

    Total

    1750 ms

  • HTTP Headers

    Server

    nginx

    A name for the server.

    nginx - Description of the server software.

    Date

    Sun, 19 Apr 2026 09:27:41 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

    Connection

    keep-alive

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

    keep-alive - The client would like to keep the connection open.

    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.
    Link

    <https://www.electricians-r-us.co.uk/wp-json/>; rel="https://api.w.org/", <https://www.electricians-r-us.co.uk/wp-json/wp/v2/pages/890>; rel="alternate"; title="JSON"; type="application/json", <https://www.electricians-r-us.co.uk/?p=890>; rel=shortlink

    Used to express a typed relationship with another resource.

    Referrer-Policy

    no-referrer-when-downgrade

    Controls what referrer information is sent with requests.

    no-referrer-when-downgrade - Send the full referrer when the protocol security stays the same, or improves.

    Referrer-Policy

    strict-origin-when-cross-origin

    Controls what referrer information is sent with requests.

    strict-origin-when-cross-origin - Send the full referrer for a same origin request. Send the origin only for cross-domain requests where the protocol level is the same. Otherwise do not send the referrer.

    Problems were detected with this header

    • Duplicate header. There is another header with this name and this may cause problems.
    Strict-Transport-Security

    max-age=15768000; includeSubDomains; preload

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

    • Max-Age

      15768000 (182 days 12 hours)

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

    • includesubdomains

      max-age applies to subdomains as well.

    • preload

      Use Google's preloading strict transport security.

    X-Frame-Options

    SAMEORIGIN

    Clickjacking protection.

    SAMEORIGIN - No rendering if origin mismatch.

    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'.