HTTP Headers

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

Summary

Response
Total Requests
1
Total Time
1126 ms
  • IP
    172.66.43.99
  • Timing

    Wait

    0 ms

    DNS

    90 ms

    TCP

    1 ms

    Request

    0 ms

    First Byte

    1026 ms

    Download

    1 ms

    Total

    1126 ms

  • HTTP Headers

    Date

    Sun, 20 Apr 2025 04:03:10 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

    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.

    Cf-Ray

    9331c011dd4d42a0-EWR

    Encoded information about your request from Cloudflare.

    Cache-Control

    public, max-age=3600, stale-while-revalidate=4000,stale-if-error=2419200

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

    • public

      May be stored by any cache.

    • Max-Age

      3600 (1 hour)

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

    • Stale-While-Revalidate

      4000 (1 hour 6 minutes 40 seconds)

      Client will accept a stale response and will check for a fresh one (seconds).

    • Stale-If-Error

      2419200 (28 days)

      Client will accept a stale response if the check for a fresh one fails (seconds).

    X-Robots-Tag

    index, follow

    Specify how the resource is shown in search results.

    • index

      Problems were found.

      • Option is not one of known values.
    • follow

      Problems were found.

      • Option is not one of known values.
    Expires

    Mon, 21 Apr 2025 04:03:09 GMT

    The time at which the response is considered stale.

    Link

    <https://domain.glass/pushchairsandprams.uk>; rel="canonical"

    Used to express a typed relationship with another resource.

    Vary

    Accept-Encoding

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

    • Headers

      • Accept-Encoding
    Cf-Cache-Status

    DYNAMIC

    Encoded information about your request from Cloudflare.

    DYNAMIC - This is not cached by default.

    Report-To

    {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=DGaJKqSw3YMGOXipj%2B5mpb1VoonBiAq0Fw4L0bZd7JiOWSKlZAQ3Ibz4t0eN61iEOJnOdM3NlYbNFLbxp%2FmPgD5YQzBvwSJ%2FYQbs%2BD2s000rjtDkKoyPM9hfARCBrQ%3D%3D"}],"group":"cf-nel","max_age":604800}

    Report to.

    • Endpoints

      • {"url":"https://a.nel.cloudflare.com/report/v4?s=DGaJKqSw3YMGOXipj%2B5mpb1VoonBiAq0Fw4L0bZd7JiOWSKlZAQ3Ibz4t0eN61iEOJnOdM3NlYbNFLbxp%2FmPgD5YQzBvwSJ%2FYQbs%2BD2s000rjtDkKoyPM9hfARCBrQ%3D%3D"}
    • Group

      cf-nel

    • Max_age

      604800

    Nel

    {"success_fraction":0,"report_to":"cf-nel","max_age":604800}

    Configure network request logging.

    • Success_fraction

      0
    • Report_to

      cf-nel

    • Max_age

      604800

    Server

    cloudflare

    A name for the server.

    cloudflare - Description of the server software.

    Alt-Svc

    h3=":443"; ma=86400

    Indicate a resource should be loaded from a different server while still appearing to be loaded from this server.

    • Service

      • h3 - :443
    • Service

      • ma - 86400 (1 day)

        Max age for the alternative (seconds).

    Server-Timing

    cfL4;desc="?proto=TCP&rtt=769&min_rtt=763&rtt_var=298&sent=4&recv=5&lost=0&retrans=0&sent_bytes=2829&recv_bytes=706&delivery_rate=3562115&cwnd=250&unsent_bytes=0&cid=5617ddb271dde12a&ts=1033&x=0"

    Server metrics for the request.

    • Cfl4