{
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  "apiVersion": "1.1.0",
  "lastModified": "2026-10-13T18:59:06.987Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC4290",
  "document": {
    "abstract": "This document explores the issues in the registration of internationalized domain names (IDNs). The basic IDN definition allows a very large number of possible characters in domain names, and this richness may lead to serious user confusion about similar-looking names. To avoid this confusion, the IDN registration process must impose rules that disallow some otherwise-valid name combinations. This document suggests a set of mechanisms that registries might use to define and implement such rules for a broad range of languages, including adaptation of methods developed for Chinese, Japanese, and Korean domain names. This memo provides information for the Internet community.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "authors": [
      {
        "name": "Dr. John C. Klensin"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docId": "RFC4290",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docLabel": "IETF RFC 4290",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docNumber": "4290",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docTitle": "Suggested Practices for Registration of Internationalized Domain Names (IDN)",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docType": "Informational",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "doi": "10.17487/RFC4290",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "href": "https://doi.org/10.17487/RFC4290",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "keywords": [
      "Internationalized Domain Names"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "Chinese Domain Names",
        "Japanese Domain Names",
        "Korean Domain Names"
      ],
      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:59:06.987Z",
      "version": "extractDocs.js@commit:8ad844f404e0"
    },
    "pages": "28",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publicationDate": "2005-12-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "references": {
      "bibliographic": [
        "RFC952",
        "RFC1035",
        "RFC3066",
        "RFC3490",
        "RFC3491",
        "RFC3492",
        "RFC3536",
        "RFC3743",
        "UNICODE.STD.3.0",
        "orphan/RFC4290/h:342c8175",
        "orphan/RFC4290/h:f57b164a",
        "orphan/RFC4290/h:a32ef915",
        "orphan/RFC4290/h:bab378ad",
        "orphan/RFC4290/h:e5aaf09f",
        "orphan/RFC4290/h:315b9eaf",
        "orphan/RFC4290/h:909a3da3",
        "orphan/RFC4290/h:ed5cf1d3",
        "orphan/RFC4290/h:3e91b8dd"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=18 proseBlocks=21 skippedAnchorBlocks=19",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
        "updated": "2026-10-13T18:21:28.355Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc4290/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
      "updated": "2026-10-13T18:21:28.355Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
        "updated": "2026-10-13T18:21:28.355Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
        "updated": "2026-10-13T18:21:28.355Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc4290",
        "https://www.rfc-editor.org/errata_search.php?rfc=4290",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc4290.html"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
        "updated": "2026-10-13T18:21:28.355Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
        "updated": "2026-10-13T18:21:28.355Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
        "updated": "2026-10-13T18:21:28.355Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4290/",
        "updated": "2026-10-13T18:21:28.355Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      }
    }
  }
}