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
778 ms
  • IP
    104.21.20.170
    View Map

  • Timing

    Wait

    0 ms

    DNS

    9 ms

    TCP

    6 ms

    Request

    1 ms

    First Byte

    751 ms

    Download

    0 ms

    Total

    778 ms

  • HTTP Headers

    Date

    Thu, 12 Mar 2026 13:16:30 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.

    Cf-Cache-Status

    DYNAMIC

    Encoded information about your request from Cloudflare.

    DYNAMIC - This is not cached by default.

    Server-Timing

    cfCacheStatus;desc="DYNAMIC"

    Server metrics for the request.

    • Cfcachestatus

      DYNAMIC

    Server-Timing

    cfEdge;dur=14,cfOrigin;dur=731

    Server metrics for the request.

    • Cfedge

      • dur - 14

    • Cforigin

      • dur - 731

    Problems were detected with this header

    • Duplicate header. There is another header with this name and this may cause problems.
    Report-To

    {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=zpWIz2Zv%2FXi%2BhgPT6HLlQgtoozfn4EJfYlJyD7R3bJnMj%2Ft3dancItwiBJEH1XkLc3383HlvkiFcwqVna9%2BQkNGMorc9JkwmROJF%2FWbR8fxK5twcSCQW5GDj1tWc"}]}

    Report to.

    • Group

      cf-nel

    • Max_age

      604800

    • Endpoints

      • {"url":"https://a.nel.cloudflare.com/report/v4?s=zpWIz2Zv%2FXi%2BhgPT6HLlQgtoozfn4EJfYlJyD7R3bJnMj%2Ft3dancItwiBJEH1XkLc3383HlvkiFcwqVna9%2BQkNGMorc9JkwmROJF%2FWbR8fxK5twcSCQW5GDj1tWc"}
    Nel

    {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}

    Configure network request logging.

    • Report_to

      cf-nel

    • Success_fraction

      0

    • Max_age

      604800

    Server

    cloudflare

    A name for the server.

    cloudflare - Description of the server software.

    Cf-Ray

    9db312e0ce4e8c7b-EWR

    Encoded information about your request from Cloudflare.

    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).