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
227 ms

  • https://www.instapaper.com/p/casinos79in

    Status
    200
    Message
    OK
    Time
    227 ms
  • IP
    13.33.67.25
    View Map

  • Timing

    Wait

    0 ms

    DNS

    13 ms

    TCP

    4 ms

    Request

    0 ms

    First Byte

    205 ms

    Download

    0 ms

    Total

    227 ms

  • HTTP Headers

    Content-Type

    text/html

    The MIME type of this content.

    Problems were detected with this header

    • Unknown MIME type.
    Content-Length

    5905(5.91 kB)

    The length of the response body in octets (8-bit bytes).

    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.

    Last-Modified

    Mon, 24 Aug 2026 15:00:49 GMT

    The last modified date for the requested object.

    X-Amz-Server-Side-Encryption

    AES256

    Accept-Ranges

    bytes

    What partial content range types this server supports via byte serving.

    bytes - Byte ranges are supported.

    Server

    AmazonS3

    A name for the server.

    AmazonS3 - Description of the server software.

    Date

    Tue, 25 Aug 2026 00:51:18 GMT

    The date and time that the message was sent.

    Cache-Control

    public, max-age=0, must-revalidate

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

    • public

      May be stored by any cache.

    • Max-Age

      0

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

    • must-revalidate

      Stale caches must not be used.

    Etag

    "0260b25228e8c87f10aa5c96aff0d624"

    An identifier for a specific version of a resource.

    • Validator

      strong

      A weak tag is easier to generate and prevents byte range caching.

    • Tag

      0260b25228e8c87f10aa5c96aff0d624

    X-Cache

    RefreshHit from cloudfront

    Indicates whether a cache was used to server this response.

    Via

    1.1 59201a7dc7270c8ce228abe298dced5a.cloudfront.net (CloudFront)

    Added by proxies to track a request through proxies and to avoid loops.

    • Version

      1.1

      Protocol version.

    • Host

      Host name.

    X-Amz-Cf-Pop

    JFK50-P14

    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).

    X-Amz-Cf-Id

    L1PE1h97tcf9t2Re3BBcIvZ4s2GshrwwPiSCoIsCQG-GazNBNm_ogA==

    X-Frame-Options

    SAMEORIGIN

    Clickjacking protection.

    SAMEORIGIN - No rendering if origin mismatch.

    Referrer-Policy

    strict-origin-when-cross-origin

    Controls what referrer information is sent with requests.

    strict-origin-when-cross-origin - Send the full referrer for a same origin request. Send the origin only for cross-domain requests where the protocol level is the same. Otherwise do not send the referrer.

    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'.

    Strict-Transport-Security

    max-age=631138519

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

    • Max-Age

      631138519 (20 years 4 days 20 hours 15 minutes 19 seconds)

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