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RFC 9520: Negative Caching of DNS Resolution Failures

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RFC 9520: Negative Caching of DNS Resolution Failures

Summary

RFC 9520: Negative Caching of DNS Resolution Failures is a Request for Comments[1].

Key Facts

  • RFC 9520: Negative Caching of DNS Resolution Failures's instance of is recorded as Negative Caching of DNS Resolution Failures — instance of (P31): Request for Comments[2].
  • RFC 9520: Negative Caching of DNS Resolution Failures's publisher is recorded as Negative Caching of DNS Resolution Failures — publisher (P123): Internet Engineering Task Force[3].
  • RFC 9520: Negative Caching of DNS Resolution Failures's based on is recorded as Negative Caching of DNS Resolution Failures — based on (P144): RFC 2308: Negative Caching of DNS Queries (DNS NCACHE)[4].
  • RFC 9520: Negative Caching of DNS Resolution Failures's based on is recorded as Negative Caching of DNS Resolution Failures — based on (P144): RFC 4035: Protocol Modifications for the DNS Security Extensions[5].
  • RFC 9520: Negative Caching of DNS Resolution Failures's based on is recorded as Negative Caching of DNS Resolution Failures — based on (P144): RFC 4697: Observed DNS Resolution Misbehavior[6].
  • RFC 9520: Negative Caching of DNS Resolution Failures's DOI is recorded as 10.17487/RFC9520[7].
  • RFC 9520: Negative Caching of DNS Resolution Failures's language of work or name is recorded as Negative Caching of DNS Resolution Failures — language of work or name (P407): English[8].
  • RFC 9520: Negative Caching of DNS Resolution Failures's publication date is recorded as +2023-12-01T00:00:00Z[9].
  • RFC 9520: Negative Caching of DNS Resolution Failures's RfC ID is recorded as 9520[10].
  • RFC 9520: Negative Caching of DNS Resolution Failures's work available at URL is recorded as https://tools.ietf.org/html/rfc9520[11].
  • RFC 9520: Negative Caching of DNS Resolution Failures's title is recorded as Negative Caching of DNS Resolution Failures[12].
  • RFC 9520: Negative Caching of DNS Resolution Failures's author name string is recorded as D. Wessels[13].
  • RFC 9520: Negative Caching of DNS Resolution Failures's author name string is recorded as W. Carroll[14].
  • RFC 9520: Negative Caching of DNS Resolution Failures's author name string is recorded as M. Thomas[15].

Body

Designation and Status

RFC 9520: Negative Caching of DNS Resolution Failures's instance of is recorded as Negative Caching of DNS Resolution Failures — instance of (P31): Request for Comments[2].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . RFC Index. Retrieved . wikidata.org.
  2. [3] ↑ . RFC Index. Retrieved . wikidata.org.
  3. [4] ↑ . RFC Index. Retrieved . wikidata.org.
  4. [5] ↑ . RFC Index. Retrieved . wikidata.org.
  5. [6] ↑ . RFC Index. Retrieved . wikidata.org.
  6. [7] ↑ . RFC Index. Retrieved . wikidata.org.
  7. [8] ↑ . RFC Index. Retrieved . wikidata.org.
  8. [9] ↑ . RFC Index. Retrieved . wikidata.org.
  9. [10] ↑ . RFC Index. Retrieved . wikidata.org.
  10. [11] ↑ . RFC Index. Retrieved . wikidata.org.
  11. [12] ↑ . RFC Index. Retrieved . wikidata.org.
  12. [13] ↑ . RFC Index. Retrieved . wikidata.org.
  13. [14] ↑ . RFC Index. Retrieved . wikidata.org.
  14. [15] ↑ . RFC Index. Retrieved . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). RFC 9520: Negative Caching of DNS Resolution Failures. Retrieved May 3, 2026, from https://4ort.xyz/entity/rfc-9520-negative-caching-of-dns-resolution-failures
MLA “RFC 9520: Negative Caching of DNS Resolution Failures.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/rfc-9520-negative-caching-of-dns-resolution-failures.
BibTeX @misc{4ortxyz_rfc-9520-negative-caching-of-dns-resolution-failures_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{RFC 9520: Negative Caching of DNS Resolution Failures}}, year = {2026}, url = {https://4ort.xyz/entity/rfc-9520-negative-caching-of-dns-resolution-failures}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): RFC 9520: Negative Caching of DNS Resolution Failures — https://4ort.xyz/entity/rfc-9520-negative-caching-of-dns-resolution-failures (retrieved 2026-05-03)

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