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
77 ms
  • IP
    104.21.12.244
  • Timing

    Wait

    0 ms

    DNS

    12 ms

    TCP

    3 ms

    Request

    1 ms

    First Byte

    50 ms

    Download

    0 ms

    Total

    77 ms

  • HTTP Headers

    Date

    Mon, 04 May 2026 19:53:58 GMT

    The date and time that the message was sent.

    Content-Type

    text/html

    The MIME type of this content.

    • Type

      text/html

    • Description

      HTML file

    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.

    Server

    cloudflare

    A name for the server.

    cloudflare - Description of the server software.

    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

    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=10,cfOrigin;dur=36

    Server metrics for the request.

    • Cfedge

      • dur - 10
    • Cforigin

      • dur - 36

    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=NAKtKVP0nrmW%2FsC8vnfz8pOzwLQkF8cqCodGNWp6iaYoP%2BDjcpTuQ8FJea4DFlZ6%2BL2%2BwQ14X3P%2FicAR1rsNwx%2BTYcCeYfMVXS1EqAOUhzQg9VJDpRcSj5Tsjwvx"}]}

    Report to.

    • Group

      cf-nel

    • Max_age

      604800

    • Endpoints

      • {"url":"https://a.nel.cloudflare.com/report/v4?s=NAKtKVP0nrmW%2FsC8vnfz8pOzwLQkF8cqCodGNWp6iaYoP%2BDjcpTuQ8FJea4DFlZ6%2BL2%2BwQ14X3P%2FicAR1rsNwx%2BTYcCeYfMVXS1EqAOUhzQg9VJDpRcSj5Tsjwvx"}
    Cf-Ray

    9f6a0dff1c0ecc62-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).