{
  "slug": "xmpp",
  "category": "messengers",
  "name": "XMPP",
  "description": "XMPP, also known as Jabber, is an open standard for federated instant messaging maintained by the XMPP Standards Foundation, with many independent clients and servers.",
  "website": "https://xmpp.org",
  "source": "https://github.com/xsf/xeps",
  "license": null,
  "platforms": [],
  "jurisdiction": null,
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "B",
  "score": 78,
  "coverage": 100,
  "summary": "XMPP scores 78 out of 100 (grade B) on the messengers criteria. It meets 5 of 7 criteria: open source, no trackers or telemetry, no ads or data sales, no phone number needed and decentralized. It partly meets end-to-end encrypted by default. It does not meet metadata protection.",
  "url": "https://privacyratings.com/messengers/xmpp/",
  "markdown": "https://privacyratings.com/messengers/xmpp/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://datatracker.ietf.org/doc/html/rfc6120",
      "note": "Open standard (RFC 6120) with many open source clients and servers."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://github.com/xsf/xmpp.org",
      "note": "The standard defines no telemetry, and the xmpp.org site loads only its own scripts with no analytics."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://xmpp.org/about/xmpp-standards-foundation/",
      "note": "Maintained by the non-profit XMPP Standards Foundation, funded by sponsors, with no ads."
    },
    "independent_audit": {
      "title": "Independent audit",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "A standard is not audited as a product; audits cover individual clients and servers."
    },
    "transparency_report": {
      "title": "Transparency report",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "user_notice": {
      "title": "Tells users about requests",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "tls": {
      "title": "TLS configuration",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "security_headers": {
      "title": "Security headers",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "web_standards": {
      "title": "Modern web standards",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "e2ee_default": {
      "title": "End-to-end encrypted by default",
      "weight": 3,
      "answer": "partial",
      "evidence": "https://xmpp.org/extensions/xep-0384.html",
      "note": "End-to-end encryption comes from the optional OMEMO extension; some clients enable it by default, but the core protocol does not."
    },
    "no_phone_number": {
      "title": "No phone number needed",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://datatracker.ietf.org/doc/html/rfc6120",
      "note": "Accounts are addresses of the form user@server; no phone number is involved."
    },
    "metadata_protection": {
      "title": "Metadata protection",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "Servers store contact lists and see who talks to whom."
    },
    "decentralized": {
      "title": "Decentralized",
      "weight": 1,
      "answer": "yes",
      "evidence": "https://datatracker.ietf.org/doc/html/rfc6120",
      "note": "Federated; anyone can run a server that talks to other servers."
    }
  },
  "tests": {
    "ssllabs": null,
    "observatory": null,
    "internetnl_web": null,
    "internetnl_mail": null,
    "trackers": [],
    "tested_at": "2026-10-01T07:00:48.671Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}