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Address
Host

www.kernel-error.de

QUIC is supported

HTTP/3 is supported

HTTP/3 Check established a QUIC connection for all attempts made with the given endpoint. See the metrics below for more information.

0-RTT

Zero Round Trip Time Resumption (0-RTT)

The QUIC handshake for this connection was completed without any additional round-trips.

SUCCESS
h3

QUIC Versions

These are the QUIC versions supported by this QUIC endpoint.

AGREED SUPPORTED
Connection ID

Connection ID

This unique identifier for a QUIC connection is used to ensure that changes to an endpoint's lower network layer address (UDP/IP) does not affect the delivery of the QUIC connection's packets.

This tool attempts two connections to test the server's 0-RTT capabilities. During the first connection, the client receives important handshake material from the server. With 0-RTT, the client can start to send data immediately if it uses this handshake material when it creates the second connection.

Packet RX

Packet RX

This value represents the time between the first packet sent and the first packet received (measured in milliseconds).

 Handshake Done

Handshake Done

This value represents the time between when the first packet is sent and when the handshake is completed (measured in milliseconds).

Take notice of the difference in this metric between the first connection and the second connection. Using 0-RTT, future connections (i.e. the second connection) can complete the handshake much faster than the original connection.

7C86308865... 89.214 181.93
430263DA2D... 89.029 179.301

Read detailed descriptions of the items and metrics shown above.

HTTP/3 Statistics

Zero Round Trip Time Resumption (0-RTT)

The QUIC handshake for this connection was completed without any additional round-trips.

SUCCESS

QUIC Versions

These are the QUIC versions supported by this QUIC endpoint.

AGREED SUPPORTED

Connection ID

This unique identifier for a QUIC connection is used to ensure that changes to an endpoint's lower network layer address (UDP/IP) does not affect the delivery of the QUIC connection's packets.

This tool attempts two connections to test the server's 0-RTT capabilities. During the first connection, the client receives important handshake material from the server. With 0-RTT, the client can start to send data immediately if it uses this handshake material when it creates the second connection.

Packet RX

This value represents the time between the first packet sent and the first packet received (measured in milliseconds).

Handshake Done

This value represents the time between when the first packet is sent and when the handshake is completed (measured in milliseconds).

Take notice of the difference in this metric between the first connection and the second connection. Using 0-RTT, future connections (i.e. the second connection) can complete the handshake much faster than the original connection.

QLog

QLog is a standard under development for QUIC Connection debugging and visualization. Learn more at https://quic.edm.uhasselt.be/

To view or download the raw QLog ("application/json"), add "format=qlog" to the HTTP query string.

HTTP Header

HTTP/1.1 200 OK
date: Fri, 13 Dec 2024 05:51:08 GMT
content-type: text/html; charset=UTF-8
vary: accept-encoding
link: <https://www.kernel-error.de/wp-json/>; rel="https://api.w.org/"
link: <https://www.kernel-error.de/wp-json/wp/v2/pages/23>; rel="alternate"; title="JSON"; type="application/json"
link: <https://www.kernel-error.de/>; rel=shortlink
server: He is dead Jim!
strict-transport-security: max-age=63072000; includeSubDomains; preload
quic-status: h3
alt-svc: h3=":443"; ma=86400
x-frame-options: SAMEORIGIN
referrer-policy: no-referrer
x-content-type-options: nosniff
x-cache: HIT
public-key-pins: max-age=5184000; pin-sha256="FvSWI7sOdfrkzRxWK/IK5duDA69xAYVu0mLiV5zgO8s="; pin-sha256="8FF6krBfhQeVfjrTvSEhwmHHE+u4P0UW9gUB0O+Kl6U="
x-xss-protection: 1; mode=block
content-security-policy: default-src 'self' 'unsafe-inline' 'unsafe-eval' https: data: *.kernel-error.de;
permissions-policy: accelerometer=(), ambient-light-sensor=(), autoplay=(), camera=(), encrypted-media=(), fullscreen=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), sync-xhr=(self 'https://haveibeenpwned.com' 'https://twofactorauth.org'), usb=(), vr=()

Certificate Chain

Domain *.kernel-error.de
Issued By GlobalSign GCC R6 AlphaSSL CA 2023
Expires Saturday, May 10, 2025 at 12:38:09 PM GMT
This certificate is valid
Subject
Common Name *.kernel-error.de
Issuer
Country BE
Organization GlobalSign nv-sa
Common Name GlobalSign GCC R6 AlphaSSL CA 2023
Serial Number 5248914722605546335440944361
Signature Algorithm sha256WithRSAEncryption
Version
Public Key Bits 384
Public Key Type DSA
Domain GlobalSign GCC R6 AlphaSSL CA 2023
Issued By GlobalSign
Expires Sunday, July 19, 2026 at 12:00:00 AM GMT
Subject
Country BE
Organization GlobalSign nv-sa
Common Name GlobalSign GCC R6 AlphaSSL CA 2023
Issuer
Organization GlobalSign
Unit GlobalSign Root CA - R6
Common Name GlobalSign
Serial Number 168973820516572524429807138621339950720
Signature Algorithm sha256WithRSAEncryption
Version
Public Key Bits 2048
Public Key Type RSA
Domain GlobalSign
Issued By GlobalSign
Expires Sunday, December 10, 2034 at 12:00:00 AM GMT
Subject
Organization GlobalSign
Unit GlobalSign Root CA - R6
Common Name GlobalSign
Issuer
Organization GlobalSign
Unit GlobalSign Root CA - R6
Common Name GlobalSign
Serial Number 1417766617973444989252670301619537
Signature Algorithm sha384WithRSAEncryption
Version
Public Key Bits 4096
Public Key Type RSA

QLog Output

QLog

QLog is a standard under development for QUIC Connection debugging and visualization. Learn more at https://quic.edm.uhasselt.be/

To view or download the raw QLog ("application/json"), add "format=qlog" to the HTTP query string. 

{
  "qlog_version": "0.1",
  "description": "www.kernel-error.de",
  "connections": [
    {
      "qlog_version": "0.1",
      "vantagepoint": "NETWORK",
      "connectionid": "7C863088653E68AB",
      "starttime": 28368823781387,
      "fields": [
        "time",
        "category",
        "type",
        "trigger",
        "data"
      ],
      "events": [
        [
          0,
          "CONNECTIVITY",
          "NEW_CONNECTION",
          "LINE",
          {
            "ip_version": "6",
            "srcip": "::",
            "dstip": "2a01:4f8:262:4716::443",
            "srcport": "53889",
            "dstport": "443"
          }
        ],
        [
          73,
          "CONNECTIVITY",
          "VERNEG",
          "LINE",
          {
            "proposed_version": "00000001"
          }
        ],
        [
          89214,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "ff00000001087c863088653e68ab1484275e65fd73507c9d0621c0d4f6c077...",
            "header": {
              "type": "RETRY",
              "payload_length": "120",
              "packet_number": "4611686018427387904"
            }
          }
        ],
        [
          89219,
          "CONNECTIVITY",
          "VERNEG",
          "PACKET_RX",
          {
            "agreed_version": "00000001"
          }
        ],
        [
          180300,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "c500000001087c863088653e68ab141646ef97297d0a5aad99c1140b5d7bc5...",
            "header": {
              "type": "INIT",
              "payload_length": "138",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "ACK"
              },
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          180663,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "ee00000001087c863088653e68ab141646ef97297d0a5aad99c1140b5d7bc5...",
            "header": {
              "type": "HSK",
              "payload_length": "1030",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          180821,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "e900000001087c863088653e68ab141646ef97297d0a5aad99c1140b5d7bc5...",
            "header": {
              "type": "HSK",
              "payload_length": "1184",
              "packet_number": "1"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          180972,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "ec00000001087c863088653e68ab141646ef97297d0a5aad99c1140b5d7bc5...",
            "header": {
              "type": "HSK",
              "payload_length": "1151",
              "packet_number": "2"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          181263,
          "SECURITY",
          "CHECK_CERT",
          "CERTLOG",
          {
            "certificate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
          }
        ],
        [
          181263,
          "SECURITY",
          "CHECK_CERT",
          "CERTLOG",
          {
            "certificate": "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"
          }
        ],
        [
          181930,
          "CONNECTIVITY",
          "HANDSHAKE",
          "PACKET_RX",
          {
            "status": "complete"
          }
        ],
        [
          454064,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "527c863088653e68ab3d92e0646f6979ca7cfc5d1af2e12dada7f83bf93f29...",
            "header": {
              "type": "SHORT",
              "payload_length": "498",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              },
              {
                "frame_type": "ACK"
              },
              {
                "frame_type": "NEW_CONNECTION_ID"
              },
              {
                "frame_type": "CRYPTO"
              },
              {
                "frame_type": "NEW_TOKEN"
              },
              {
                "frame_type": "HANDSHAKE_DONE"
              }
            ]
          }
        ],
        [
          454199,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "487c863088653e68ab7950fa5f2d934709dc1e67446a4ccf1886ca30c476b2...",
            "header": {
              "type": "SHORT",
              "payload_length": "919",
              "packet_number": "1"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ]
          }
        ]
      ]
    },
    {
      "qlog_version": "0.1",
      "vantagepoint": "NETWORK",
      "connectionid": "430263DA2DC505D5",
      "starttime": 28368824236097,
      "fields": [
        "time",
        "category",
        "type",
        "trigger",
        "data"
      ],
      "events": [
        [
          0,
          "CONNECTIVITY",
          "NEW_CONNECTION",
          "LINE",
          {
            "ip_version": "6",
            "srcip": "::",
            "dstip": "2a01:4f8:262:4716::443",
            "srcport": "53889",
            "dstport": "443"
          }
        ],
        [
          32,
          "CONNECTIVITY",
          "VERNEG",
          "LINE",
          {
            "proposed_version": "00000001"
          }
        ],
        [
          89029,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "ff0000000108430263da2dc505d5146cfe40bc07ff291661e09c0599e4715c...",
            "header": {
              "type": "RETRY",
              "payload_length": "129",
              "packet_number": "4611686018427387904"
            }
          }
        ],
        [
          89034,
          "CONNECTIVITY",
          "VERNEG",
          "PACKET_RX",
          {
            "agreed_version": "00000001"
          }
        ],
        [
          178922,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "c20000000108430263da2dc505d5147907ffc282eaf5e7cd4806e18b9d8803...",
            "header": {
              "type": "INIT",
              "payload_length": "144",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "ACK"
              },
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          179213,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "eb0000000108430263da2dc505d5147907ffc282eaf5e7cd4806e18b9d8803...",
            "header": {
              "type": "HSK",
              "payload_length": "1024",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "PADDING"
              },
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          179301,
          "CONNECTIVITY",
          "HANDSHAKE",
          "PACKET_RX",
          {
            "status": "complete"
          }
        ],
        [
          179340,
          "RECOVERY",
          "RTT_UPDATE",
          "PACKET_RX",
          {
            "zero_rtt": "successful"
          }
        ],
        [
          449438,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "4c430263da2dc505d53b8e6e8147eba78a541d4deca223cb72a7e8bfb146bb...",
            "header": {
              "type": "SHORT",
              "payload_length": "438",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              },
              {
                "frame_type": "ACK"
              },
              {
                "frame_type": "NEW_CONNECTION_ID"
              },
              {
                "frame_type": "CRYPTO"
              },
              {
                "frame_type": "NEW_TOKEN"
              },
              {
                "frame_type": "HANDSHAKE_DONE"
              }
            ]
          }
        ],
        [
          449579,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "5a430263da2dc505d5bee87a55800f5bda740bb39e672850b0de94292cb73c...",
            "header": {
              "type": "SHORT",
              "payload_length": "919",
              "packet_number": "1"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ]
          }
        ]
      ]
    }
  ]
}

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