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X.509

ITU-T recommendation
CreativeWork itu_t_recommendation Q1065865
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X.509

Summary

X.509 is an ITU-T Recommendation[1]. X.509 has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • X.509's instance of is recorded as ITU-T Recommendation[3].
  • X.509's official website is recorded as https://www.itu.int/rec/T-REC-X.509[4].
  • X.509's main subject is public-key infrastructure[5].
  • X.509's Stack Exchange tag is recorded as https://stackoverflow.com/tags/x.509[6].
  • X.509's exact match is recorded as https://www.itu.int/rec/T-REC-X.509[7].

Body

Subject and Themes

X.509's main subject is public-key infrastructure[5].

Why It Matters

X.509 has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[2] X.509 is known by 10 alternative names across languages and contexts.[8]

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [8] ↑ . Wikidata aliases. 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). X.509. Retrieved May 3, 2026, from https://4ort.xyz/entity/x-509
MLA “X.509.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/x-509.
BibTeX @misc{4ortxyz_x-509_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{X.509}}, year = {2026}, url = {https://4ort.xyz/entity/x-509}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): X.509 — https://4ort.xyz/entity/x-509 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/x-509 · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 13d ago · Spiral6800 · 2026-06-21 view diff on Wikidata ↗
    Instance of → ITU-T Recommendation
    Aliases → —
    Website → —
    Icannwiki page id → X.509
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:1||1 */ [[Property:P12521]]: X.509, Matched to [[:toollabs:mix-n-match/#/entry/294328442|X.509 (#294328442)]] in [[:toollabs:mix-n-match/#/catalog/8064|ICANNWiki]] #mix'n'match"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.