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
2575 ms

  • https://trellis-2.net/

    Status
    200
    Message
    OK
    Time
    2575 ms
  • IP
    172.67.128.22
    View Map

  • Timing

    Wait

    0 ms

    DNS

    9 ms

    TCP

    5 ms

    Request

    0 ms

    First Byte

    2552 ms

    Download

    0 ms

    Total

    2575 ms

  • HTTP Headers

    Date

    Thu, 17 Sep 2026 07:48:25 GMT

    The date and time that the message was sent.

    Content-Type

    text/html; charset=utf-8

    The MIME type of this content.

    Problems were detected with this header

    • Unknown MIME type.
    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-Timing

    cfEdge;dur=1874,cfOrigin;dur=0,cfWorker;dur=673

    Server metrics for the request.

    • Cfedge

      • dur - 1874

    • Cforigin

      • dur - 0

    • Cfworker

      • dur - 673
    Cache-Control

    s-maxage=2, stale-while-revalidate=2592000

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

    • S-Maxage

      2

      Override max-age for shared caches, ignored by private caches.

    • Stale-While-Revalidate

      2592000 (30 days)

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

    Strict-Transport-Security

    max-age=63072000; includeSubDomains; preload

    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).

    • includesubdomains

      max-age applies to subdomains as well.

    • preload

      Use Google's preloading strict transport security.

    Vary

    rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch

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

    • Headers

      • rsc
      • next-router-state-tree
      • next-router-prefetch
      • next-router-segment-prefetch
    X-Content-Type-Options

    nosniff

    Prevents Internet Explorer from MIME-sniffing a response away from the declared content-type.

    nosniff - Block requests if type 'style' or 'script'.

    X-Frame-Options

    SAMEORIGIN

    Clickjacking protection.

    SAMEORIGIN - No rendering if origin mismatch.

    X-Nextjs-Cache

    STALE

    X-Nextjs-Prerender

    1

    X-Nextjs-Stale-Time

    300

    Report-To

    {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=bqhL0i2CIXQi5fK3xuUSzJzdmStW8DmCJAVRXOgS9NYyvUyZmV9XaWAMnhLpi2f3wfYMSCJy3JbGtCY%2FJDsU318iINCMss0rEQc2tElgoS1yXvrIa%2FRQPWaH6tMWu3OA"}]}

    Report to.

    • Group

      cf-nel

    • Max_age

      604800

    • Endpoints

      • {"url":"https://a.nel.cloudflare.com/report/v4?s=bqhL0i2CIXQi5fK3xuUSzJzdmStW8DmCJAVRXOgS9NYyvUyZmV9XaWAMnhLpi2f3wfYMSCJy3JbGtCY%2FJDsU318iINCMss0rEQc2tElgoS1yXvrIa%2FRQPWaH6tMWu3OA"}
    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

    a3c6821aabd8a4c6-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).