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Anti-DDoS:DescribeDomainH2Fingerprint

Last Updated:Mar 20, 2026

Queries the HTTP/2 fingerprint information for a website.

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Test

RAM authorization

No authorization for this operation. If you encounter issues with this operation, contact technical support.

Request parameters

Parameter

Type

Required

Description

Example

Domain

string

No

The domain name of the website.

Note

To list all domains protected by Anti-DDoS Pro or Anti-DDoS Premium, call DescribeDomains.

example.aliyundoc.com

StartTime

integer

Yes

The start time of the query. Specify this value as a UNIX timestamp in seconds.

Note

This value must be on the hour or at an exact minute mark.

1716435180

EndTime

integer

No

The end time of the query. Specify this value as a UNIX timestamp in seconds.

Note

This value must be on the hour or at an exact minute mark.

1726318200

Limit

integer

Yes

The returned data entries.

20

Response elements

Element

Type

Description

Example

object

RequestId

string

The unique ID that Alibaba Cloud assigns to the request. Use this ID to troubleshoot and locate issues.

112777CC-2AD6-46FC-A263-00B931406FCD

DomainH2Fp

array<object>

The top N HTTP/2 fingerprints for the domain.

object

HTTP/2 fingerprint information.

H2Fingerprint

string

The HTTP/2 fingerprint.

532501bc316d02c8b1a007db76f2c796

Pv

integer

The number of times the domain matched this HTTP/2 fingerprint.

471755

Domain

string

The domain name of the website.

example.aliyundoc.com

Examples

Success response

JSON format

{
  "RequestId": "112777CC-2AD6-46FC-A263-00B931406FCD",
  "DomainH2Fp": [
    {
      "H2Fingerprint": "532501bc316d02c8b1a007db76f2c796",
      "Pv": 471755,
      "Domain": "example.aliyundoc.com\n"
    }
  ]
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.