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
493 ms

  • https://notes.io/es22U

    Status
    200
    Message
    OK
    Time
    493 ms
  • IP
    172.67.197.149
    View Map

  • Timing

    Wait

    0 ms

    DNS

    24 ms

    TCP

    3 ms

    Request

    0 ms

    First Byte

    451 ms

    Download

    1 ms

    Total

    493 ms

  • HTTP Headers

    Date

    Wed, 29 Apr 2026 08:00:55 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.

    Server

    cloudflare

    A name for the server.

    cloudflare - Description of the server software.

    Vary

    Accept-Encoding

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

    • Headers

      • Accept-Encoding
    Set-Cookie

    PHPSESSID=3c3a1da1df40f93ef3b81fe2ddd05ab2; path=/

    A cookie sent from the server to be set on the client

    • PHPSESSID

      3c3a1da1df40f93ef3b81fe2ddd05ab2

      Cookie name and value.

    • Path

      /

      The client will only send the cookie when requesting this path, or subdirectories, from the server.

    Expires

    Thu, 19 Nov 1981 08:52:00 GMT

    The time at which the response is considered stale.

    Cache-Control

    no-store, no-cache, must-revalidate

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

    • no-store

      May not be stored by any cache.

    • no-cache

      May be stored by any cache but must be validated by the server.

    • must-revalidate

      Stale caches must not be used.

    Pragma

    no-cache

    HTTP/1.0 backwards compatible cache handling.

    no-cache - Force requests to the origin server before releasing a cache.

    Strict-Transport-Security

    max-age=63072000

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

    • Max-Age

      63072000 (2 years)

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

    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.

    Speculation-Rules

    "/cdn-cgi/speculation"

    Server-Timing

    cfCacheStatus;desc="DYNAMIC"

    Server metrics for the request.

    • Cfcachestatus

      DYNAMIC

    Server-Timing

    cfEdge;dur=8,cfOrigin;dur=426

    Server metrics for the request.

    • Cfedge

      • dur - 8

    • Cforigin

      • dur - 426

    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=Cr5FHXTwt4rxvHiuEJ2PpqV2LoVvWvMYP%2FakYcItmUR6HF44OuCnbQxyFs0VYfNyUyLHPrLaoWf3YMz%2FhMZz8bkNR9W6Vb4zHUYcbCvxu%2BdP9m1BiW%2BhgdWI6A%3D%3D"}]}

    Report to.

    • Group

      cf-nel

    • Max_age

      604800

    • Endpoints

      • {"url":"https://a.nel.cloudflare.com/report/v4?s=Cr5FHXTwt4rxvHiuEJ2PpqV2LoVvWvMYP%2FakYcItmUR6HF44OuCnbQxyFs0VYfNyUyLHPrLaoWf3YMz%2FhMZz8bkNR9W6Vb4zHUYcbCvxu%2BdP9m1BiW%2BhgdWI6A%3D%3D"}
    Cf-Ray

    9f3cc697e9cd8c69-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).