Use Advanced Search to bypass hostname resolution and use a custom IP address or port.

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 h3-29

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.

E3A49061BC... 86.149 88.809
59A603270D... 85.139 86.388

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/1.1 301 Moved Permanently
date: Sat, 03 Dec 2022 22:34:11 GMT
content-type: text/html; charset=UTF-8
location: https:///
x-redirect-by: WordPress
server: He is dead Jim!
strict-transport-security: max-age=63072000; includeSubDomains; preload
x-frame-options: SAMEORIGIN
referrer-policy: no-referrer
x-content-type-options: nosniff
x-cache: MISS
public-key-pins: max-age=5184000; pin-sha256="H0PWyEHpOpiQkuz4mAHlpkYpEkXpixWXuueZM23Rqfk="; pin-sha256="ir9KwVnk/1onpbEkETlxQfFJ2o7cq7xKY3kGmkrOatA="
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=()
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
expect-ct: enforce; max-age=3600

Certificate Chain

Domain *.kernel-error.de
Issued By AlphaSSL CA - SHA256 - G2
Expires Monday, April 17, 2023 at 12:48:57 PM GMT
This certificate is valid
Subject
Common Name *.kernel-error.de
Issuer
Organization GlobalSign nv-sa
Country BE
Common Name AlphaSSL CA - SHA256 - G2
Serial Number 7404795045015741255450576796
Signature Algorithm sha256WithRSAEncryption
Version
Public Key Bits 256
Public Key Type DSA

Domain AlphaSSL CA - SHA256 - G2
Issued By GlobalSign
Expires Tuesday, February 20, 2024 at 10:00:00 AM GMT
Subject
Organization GlobalSign nv-sa
Country BE
Common Name AlphaSSL CA - SHA256 - G2
Issuer
Organization GlobalSign
Common Name GlobalSign
Unit GlobalSign Root CA - R3
Serial Number 1476377651309393342279898355642687
Signature Algorithm sha256WithRSAEncryption
Version
Public Key Bits 2048
Public Key Type RSA

Domain GlobalSign
Issued By GlobalSign
Expires Sunday, March 18, 2029 at 10:00:00 AM GMT
Subject
Organization GlobalSign
Common Name GlobalSign
Unit GlobalSign Root CA - R3
Issuer
Organization GlobalSign
Common Name GlobalSign
Unit GlobalSign Root CA - R3
Serial Number 4835703278459759426209954
Signature Algorithm sha256WithRSAEncryption
Version
Public Key Bits 2048
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",
  "connections": [
    {
      "vantagepoint": "NETWORK",
      "fields": [
        "time",
        "category",
        "type",
        "trigger",
        "data"
      ],
      "qlog_version": "0.1",
      "starttime": 132048969856350,
      "connectionid": "E3A49061BCD6F261",
      "events": [
        [
          0,
          "CONNECTIVITY",
          "NEW_CONNECTION",
          "LINE",
          {
            "dstip": "2a01:4f8:201:9027::443",
            "srcip": "::",
            "srcport": "59128",
            "ip_version": "6",
            "dstport": "443"
          }
        ],
        [
          163,
          "CONNECTIVITY",
          "VERNEG",
          "LINE",
          {
            "proposed_version": "00000001"
          }
        ],
        [
          86149,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "138",
              "packet_number": "0",
              "type": "Initial"
            },
            "frames": [
              {
                "frame_type": "ACK"
              },
              {
                "frame_type": "CRYPTO"
              }
            ],
            "raw": "c30000000108e3a49061bcd6f261140b420b9fc9b8f0108dcf76de345ce7ab..."
          }
        ],
        [
          86155,
          "CONNECTIVITY",
          "VERNEG",
          "PACKET_RX",
          {
            "agreed_version": "00000001"
          }
        ],
        [
          87235,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "1062",
              "packet_number": "0",
              "type": "Handshake"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ],
            "raw": "e90000000108e3a49061bcd6f261140b420b9fc9b8f0108dcf76de345ce7ab..."
          }
        ],
        [
          87521,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "1216",
              "packet_number": "1",
              "type": "Handshake"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ],
            "raw": "ef0000000108e3a49061bcd6f261140b420b9fc9b8f0108dcf76de345ce7ab..."
          }
        ],
        [
          87871,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "650",
              "packet_number": "2",
              "type": "Handshake"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ],
            "raw": "e40000000108e3a49061bcd6f261140b420b9fc9b8f0108dcf76de345ce7ab..."
          }
        ],
        [
          88298,
          "SECURITY",
          "CHECK_CERT",
          "CERTLOG",
          {
            "certificate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
          }
        ],
        [
          88298,
          "SECURITY",
          "CHECK_CERT",
          "CERTLOG",
          {
            "certificate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
          }
        ],
        [
          88809,
          "CONNECTIVITY",
          "HANDSHAKE",
          "PACKET_RX",
          {
            "status": "complete"
          }
        ],
        [
          174007,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "42",
              "packet_number": "3",
              "type": "Handshake"
            },
            "frames": [
              {
                "frame_type": "ACK"
              }
            ],
            "raw": "e20000000108e3a49061bcd6f261140b420b9fc9b8f0108dcf76de345ce7ab"
          }
        ],
        [
          174213,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "411",
              "packet_number": "0",
              "type": "Short"
            },
            "frames": [
              {
                "frame_type": "NEW_CONNECTION_ID"
              },
              {
                "frame_type": "CRYPTO"
              },
              {
                "frame_type": "HANDSHAKE_DONE"
              }
            ],
            "raw": "57e3a49061bcd6f261ea711906de928e6b146b30e01f2302109065da94ec19..."
          }
        ],
        [
          174313,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "27",
              "packet_number": "1",
              "type": "Short"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ],
            "raw": "41e3a49061bcd6f261ab6b1415ad86e9370aa1d1866446ba185959b6204e01"
          }
        ],
        [
          183327,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "17",
              "packet_number": "2",
              "type": "Short"
            },
            "frames": [
              {
                "frame_type": "ACK"
              }
            ],
            "raw": "57e3a49061bcd6f2618d72ed7802dbf1aaa687743f2626210f2b6cbbb12c30"
          }
        ],
        [
          226432,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "800",
              "packet_number": "3",
              "type": "Short"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              },
              {
                "frame_type": "MAX_STREAMS"
              }
            ],
            "raw": "56e3a49061bcd6f261721508ccaaacc6c8734c862fbadfe2614bac3e7b6c20..."
          }
        ]
      ]
    },
    {
      "vantagepoint": "NETWORK",
      "fields": [
        "time",
        "category",
        "type",
        "trigger",
        "data"
      ],
      "qlog_version": "0.1",
      "starttime": 132048970083491,
      "connectionid": "59A603270D92907D",
      "events": [
        [
          0,
          "CONNECTIVITY",
          "NEW_CONNECTION",
          "LINE",
          {
            "dstip": "2a01:4f8:201:9027::443",
            "srcip": "::",
            "srcport": "59128",
            "ip_version": "6",
            "dstport": "443"
          }
        ],
        [
          60,
          "CONNECTIVITY",
          "VERNEG",
          "LINE",
          {
            "proposed_version": "00000001"
          }
        ],
        [
          85139,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "144",
              "packet_number": "0",
              "type": "Initial"
            },
            "frames": [
              {
                "frame_type": "ACK"
              },
              {
                "frame_type": "CRYPTO"
              }
            ],
            "raw": "ce000000010859a603270d92907d14c5ac0602702f300d7df2e1e3b5aec70d..."
          }
        ],
        [
          85146,
          "CONNECTIVITY",
          "VERNEG",
          "PACKET_RX",
          {
            "agreed_version": "00000001"
          }
        ],
        [
          86161,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "1024",
              "packet_number": "0",
              "type": "Handshake"
            },
            "frames": [
              {
                "frame_type": "PADDING"
              },
              {
                "frame_type": "CRYPTO"
              }
            ],
            "raw": "ec000000010859a603270d92907d14c5ac0602702f300d7df2e1e3b5aec70d..."
          }
        ],
        [
          86388,
          "CONNECTIVITY",
          "HANDSHAKE",
          "PACKET_RX",
          {
            "status": "complete"
          }
        ],
        [
          86461,
          "RECOVERY",
          "RTT_UPDATE",
          "PACKET_RX",
          {
            "zero_rtt": "successful"
          }
        ],
        [
          171031,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "42",
              "packet_number": "1",
              "type": "Handshake"
            },
            "frames": [
              {
                "frame_type": "ACK"
              }
            ],
            "raw": "e0000000010859a603270d92907d14c5ac0602702f300d7df2e1e3b5aec70d"
          }
        ],
        [
          171236,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "351",
              "packet_number": "0",
              "type": "Short"
            },
            "frames": [
              {
                "frame_type": "NEW_CONNECTION_ID"
              },
              {
                "frame_type": "CRYPTO"
              },
              {
                "frame_type": "HANDSHAKE_DONE"
              }
            ],
            "raw": "5d59a603270d92907d9a4e24dbb7d22131feb68b545f57a449bd149fbf2b23..."
          }
        ],
        [
          171311,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "27",
              "packet_number": "1",
              "type": "Short"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ],
            "raw": "4759a603270d92907d4a520bb22930853023815d306d4333380e18f31cd073"
          }
        ],
        [
          180867,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "17",
              "packet_number": "2",
              "type": "Short"
            },
            "frames": [
              {
                "frame_type": "ACK"
              }
            ],
            "raw": "4859a603270d92907d9fe83d8f031bb0a62b385d95797ae2c7c3531294e99a"
          }
        ],
        [
          222475,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "header": {
              "payload_length": "800",
              "packet_number": "3",
              "type": "Short"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              },
              {
                "frame_type": "MAX_STREAMS"
              }
            ],
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