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
352 ms
  • IP
    104.21.66.120
  • Timing

    Wait

    1 ms

    DNS

    8 ms

    TCP

    4 ms

    Request

    0 ms

    First Byte

    332 ms

    Download

    1 ms

    Total

    352 ms

  • HTTP Headers

    Date

    Sat, 19 Jul 2025 06:37:31 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

    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.

    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

    X-Powered-By

    Express

    The software powering this site.

    Cache-Control

    no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0

    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.

    • private

      May only be stored by a browser cache.

    • no-store

      May not be stored by any cache.

    • must-revalidate

      Stale caches must not be used.

    • Max-Stale

      0

      Client will accept stale responses (seconds).

    • post-check

      0

      Problems were found.

      • Option is not one of known values.
    • pre-check

      0

      Problems were found.

      • Option is not one of known values.
    Report-To

    {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=5FDJZrrUQQ%2FkV1hqwGOWN9DjjsF53IutSS28H7QBuF35bjHXvr9cAEo8fcWAp%2BnpOu74DH55u1sB%2FTTozNHAgQgLCz4fMMwdbkdtGJ17BqoKJOiIaio0cwXLR90%3D"}]}

    Report to.

    • Group

      cf-nel

    • Max_age

      604800

    • Endpoints

      • {"url":"https://a.nel.cloudflare.com/report/v4?s=5FDJZrrUQQ%2FkV1hqwGOWN9DjjsF53IutSS28H7QBuF35bjHXvr9cAEo8fcWAp%2BnpOu74DH55u1sB%2FTTozNHAgQgLCz4fMMwdbkdtGJ17BqoKJOiIaio0cwXLR90%3D"}
    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.

    Cf-Ray

    961835ef8ff8430d-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).