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Address
Host

rk.md

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.

A219D48550... 2.882 6.029
3DF08D25AE... 153.181 153.6

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, 26 Apr 2024 01:35:26 GMT
content-type: text/html; charset=UTF-8
cf-ray: 87a2d60d8ccc8cb1-EWR
cf-cache-status: HIT
access-control-allow-origin: *
age: 183326
cache-control: max-age=0, s-maxage=2592000
expires: Tue, 23 Apr 2024 19:25:40 GMT
last-modified: Tue, 23 Apr 2024 19:25:41 GMT
link: <https://rk.md/>; rel=shortlink
vary: Accept-Encoding
cache-provider: CLOUDWAYS-CACHE-DC
x-pingback: https://rk.md/xmlrpc.php
set-cookie: __cf_bm=Nf9eCaNgp1dQuN4_RRemK1oV8LuPYFn.55FrC2Gmarw-1714095326-1.0.1.1-AAyZFkvOFwNmV8Tac_Wa_vlDOsp_k1RKOkIcVirKX7cp1kdeiiDFauD3M_Ind8Ag7ngkPKqgRX78mHs.ikPrLQ; path=/; expires=Fri, 26-Apr-24 02:05:26 GMT; domain=.rk.md; HttpOnly; Secure; SameSite=None
server: cloudflare
alt-svc: h3=":443"; ma=86400

Certificate Chain

Domain rk.md
Issued By Cloudflare Inc ECC CA-3
Expires Tuesday, December 31, 2024 at 11:59:59 PM GMT
Subject
Country US
State/Province California
Locality San Francisco
Organization Cloudflare, Inc.
Common Name rk.md
Issuer
Country US
Organization Cloudflare, Inc.
Common Name Cloudflare Inc ECC CA-3
Serial Number 6468353373793692066468556512317025147
Signature Algorithm ecdsa-with-SHA256
Version
Public Key Bits 256
Public Key Type DSA
Domain Cloudflare Inc ECC CA-3
Issued By Baltimore CyberTrust Root
Expires Tuesday, December 31, 2024 at 11:59:59 PM GMT
Subject
Country US
Organization Cloudflare, Inc.
Common Name Cloudflare Inc ECC CA-3
Issuer
Country IE
Organization Baltimore
Unit CyberTrust
Common Name Baltimore CyberTrust Root
Serial Number 13580602362388610137601344763287833660
Signature Algorithm sha256WithRSAEncryption
Version
Public Key Bits 256
Public Key Type DSA

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": "rk.md",
  "connections": [
    {
      "qlog_version": "0.1",
      "vantagepoint": "NETWORK",
      "connectionid": "A219D485501FE5F3",
      "starttime": 8395081845038,
      "fields": [
        "time",
        "category",
        "type",
        "trigger",
        "data"
      ],
      "events": [
        [
          0,
          "CONNECTIVITY",
          "NEW_CONNECTION",
          "LINE",
          {
            "ip_version": "6",
            "srcip": "::",
            "dstip": "2606:4700:7::a29f:8936",
            "srcport": "42937",
            "dstport": "443"
          }
        ],
        [
          60,
          "CONNECTIVITY",
          "VERNEG",
          "LINE",
          {
            "proposed_version": "00000001"
          }
        ],
        [
          2882,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "ca0000000108a219d485501fe5f3140123cb9be3710ecaeb224f9ab37134fa",
            "header": {
              "type": "INIT",
              "payload_length": "45",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "ACK"
              }
            ]
          }
        ],
        [
          2884,
          "CONNECTIVITY",
          "VERNEG",
          "PACKET_RX",
          {
            "agreed_version": "00000001"
          }
        ],
        [
          5128,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "c90000000108a219d485501fe5f3140123cb9be3710ecaeb224f9ab37134fa...",
            "header": {
              "type": "INIT",
              "payload_length": "133",
              "packet_number": "1"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          5288,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "ea0000000108a219d485501fe5f3140123cb9be3710ecaeb224f9ab37134fa...",
            "header": {
              "type": "HSK",
              "payload_length": "1184",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          5529,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "e60000000108a219d485501fe5f3140123cb9be3710ecaeb224f9ab37134fa...",
            "header": {
              "type": "HSK",
              "payload_length": "1184",
              "packet_number": "1"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          5724,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "e40000000108a219d485501fe5f3140123cb9be3710ecaeb224f9ab37134fa...",
            "header": {
              "type": "HSK",
              "payload_length": "250",
              "packet_number": "2"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          5871,
          "SECURITY",
          "CHECK_CERT",
          "CERTLOG",
          {
            "certificate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
          }
        ],
        [
          5871,
          "SECURITY",
          "CHECK_CERT",
          "CERTLOG",
          {
            "certificate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
          }
        ],
        [
          6029,
          "CONNECTIVITY",
          "HANDSHAKE",
          "PACKET_RX",
          {
            "status": "complete"
          }
        ],
        [
          7288,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "cd0000000108a219d485501fe5f3140123cb9be3710ecaeb224f9ab37134fa",
            "header": {
              "type": "INIT",
              "payload_length": "60",
              "packet_number": "4611686018427387904"
            }
          }
        ],
        [
          7443,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "e20000000108a219d485501fe5f3140123cb9be3710ecaeb224f9ab37134fa",
            "header": {
              "type": "HSK",
              "payload_length": "43",
              "packet_number": "3"
            },
            "frames": [
              {
                "frame_type": "ACK"
              }
            ]
          }
        ],
        [
          8686,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "49a219d485501fe5f3f40a6f4556ebe0a797f70aeea4702234ad7106c58210...",
            "header": {
              "type": "SHORT",
              "payload_length": "526",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              },
              {
                "frame_type": "ACK"
              },
              {
                "frame_type": "CRYPTO"
              },
              {
                "frame_type": "HANDSHAKE_DONE"
              }
            ]
          }
        ],
        [
          8727,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "4ba219d485501fe5f307bbae37b83e37beb474f99ee01db0834fe4ed338af5",
            "header": {
              "type": "SHORT",
              "payload_length": "16",
              "packet_number": "1"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ]
          }
        ],
        [
          8910,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "49a219d485501fe5f36de9031d7bdcf191e6ca3e6fde1db2acc30d4cfb484e",
            "header": {
              "type": "SHORT",
              "payload_length": "16",
              "packet_number": "2"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ]
          }
        ],
        [
          10799,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "59a219d485501fe5f3241405460be7ba7dd1728f2da7e0ca7f5c8729de578b",
            "header": {
              "type": "SHORT",
              "payload_length": "15",
              "packet_number": "3"
            },
            "frames": [
              {
                "frame_type": "ACK"
              }
            ]
          }
        ],
        [
          34681,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "4ba219d485501fe5f3ede3faba5c9bf90fef1514cd5c9a8ba90d317712fde7...",
            "header": {
              "type": "SHORT",
              "payload_length": "547",
              "packet_number": "4"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ]
          }
        ]
      ]
    },
    {
      "qlog_version": "0.1",
      "vantagepoint": "NETWORK",
      "connectionid": "3DF08D25AEFE7266",
      "starttime": 8395081880094,
      "fields": [
        "time",
        "category",
        "type",
        "trigger",
        "data"
      ],
      "events": [
        [
          0,
          "CONNECTIVITY",
          "NEW_CONNECTION",
          "LINE",
          {
            "ip_version": "6",
            "srcip": "::",
            "dstip": "2606:4700:7::a29f:8936",
            "srcport": "42937",
            "dstport": "443"
          }
        ],
        [
          30,
          "CONNECTIVITY",
          "VERNEG",
          "LINE",
          {
            "proposed_version": "00000001"
          }
        ],
        [
          153181,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "c000000001083df08d25aefe72661401c9985ee70b857645c81c5fb70bbf46...",
            "header": {
              "type": "INIT",
              "payload_length": "145",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "ACK"
              },
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          153183,
          "CONNECTIVITY",
          "VERNEG",
          "PACKET_RX",
          {
            "agreed_version": "00000001"
          }
        ],
        [
          153496,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "e300000001083df08d25aefe72661401c9985ee70b857645c81c5fb70bbf46...",
            "header": {
              "type": "HSK",
              "payload_length": "188",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          153600,
          "CONNECTIVITY",
          "HANDSHAKE",
          "PACKET_RX",
          {
            "status": "complete"
          }
        ],
        [
          153627,
          "RECOVERY",
          "RTT_UPDATE",
          "PACKET_RX",
          {
            "zero_rtt": "successful"
          }
        ],
        [
          153662,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "583df08d25aefe7266d125061bf0854628a0dd93a08f1578c354bf65c0b2fb...",
            "header": {
              "type": "SHORT",
              "payload_length": "819",
              "packet_number": "0"
            },
            "frames": [
              {
                "frame_type": "PADDING"
              },
              {
                "frame_type": "CRYPTO"
              }
            ]
          }
        ],
        [
          155940,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "4f3df08d25aefe7266df9f6131c50ca22bd0b83a8bcc25e7200a434ba0635c",
            "header": {
              "type": "SHORT",
              "payload_length": "45",
              "packet_number": "1"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              },
              {
                "frame_type": "ACK"
              },
              {
                "frame_type": "HANDSHAKE_DONE"
              }
            ]
          }
        ],
        [
          156021,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "5d3df08d25aefe7266b2213f6763afcf748b2f21b6d354042f56b73cfdb790",
            "header": {
              "type": "SHORT",
              "payload_length": "16",
              "packet_number": "2"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ]
          }
        ],
        [
          156042,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "5d3df08d25aefe7266b4de25c7769c6f476281eb137bc5b1db7da9b0371755",
            "header": {
              "type": "SHORT",
              "payload_length": "16",
              "packet_number": "3"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ]
          }
        ],
        [
          158672,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "433df08d25aefe726632e599cd7a8ea8ab7386c7c260b358c1f8683df028ff",
            "header": {
              "type": "SHORT",
              "payload_length": "15",
              "packet_number": "4"
            },
            "frames": [
              {
                "frame_type": "ACK"
              }
            ]
          }
        ],
        [
          185608,
          "TRANSPORT",
          "PACKET_RX",
          "LINE",
          {
            "raw": "513df08d25aefe726680ff765ba49a0f0e1a049e999e1df1544042dddcb1db...",
            "header": {
              "type": "SHORT",
              "payload_length": "548",
              "packet_number": "5"
            },
            "frames": [
              {
                "frame_type": "STREAM"
              }
            ]
          }
        ]
      ]
    }
  ]
}

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