checker-caa
Copyright (c) 2026 The happyDomain Authors

This product is licensed under the MIT License (see LICENSE).

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Third-party notices
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This product includes software developed as part of the checker-sdk-go
project (https://git.happydns.org/happyDomain/checker-sdk-go), licensed
under the Apache License, Version 2.0:

    checker-sdk-go
    Copyright 2020-2026 The happyDomain Authors

    This product includes software developed as part of the happyDomain
    project (https://happydomain.org).

    Portions of this code were originally written for the happyDomain
    server (licensed under AGPL-3.0 and a commercial license) and are
    made available there under the Apache License, Version 2.0 to enable
    a permissively licensed ecosystem of checker plugins.

You may obtain a copy of the Apache License 2.0 at:
    http://www.apache.org/licenses/LICENSE-2.0

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CCADB CAA Identifiers data
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The file checker/AllCAAIdentifiersReport.csv is an unmodified snapshot of
the "CAA Identifiers (V2)" report published by the Common CA Database
(CCADB), used here to map observed certificate issuers to the CAA domain
identifiers the corresponding certificate authorities publish for DNS
CAA "issue" / "issuewild" records.

CCADB data is maintained by the CCADB participating root programs and
distributed at https://www.ccadb.org/resources. The data is made available
by CCADB without warranty; see https://www.ccadb.org/ for details.