{
  "slug": "signalwire",
  "category": "communications-apis",
  "name": "SignalWire",
  "description": "Communications platform from the team behind FreeSWITCH, with APIs for SMS, voice calls and video.",
  "website": "https://signalwire.com",
  "license": null,
  "platforms": [],
  "jurisdiction": {
    "code": "US",
    "name": "United States",
    "eyes": "Five Eyes",
    "eu": false,
    "gdpr": false,
    "cloud_act": "provider"
  },
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": null,
  "score": 5,
  "coverage": 45,
  "summary": "SignalWire is not graded yet: 45% of its criteria have evidence, and 60% is needed. It partly meets TLS configuration. It does not meet open source, no trackers or telemetry and security headers. Still needing evidence: no ads or data sales, independent audit, transparency report, tells users about requests, message content deleted or redacted and EU data location. It is based in the United States: Five Eyes member; subject to the US CLOUD Act. Automated tests: SSL Labs grade A- and Mozilla HTTP Observatory grade C.",
  "url": "https://privacyratings.com/communications-apis/signalwire/",
  "markdown": "https://privacyratings.com/communications-apis/signalwire/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "no",
      "evidence": null,
      "note": "The hosted service is closed source."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "no",
      "evidence": null,
      "note": "The website loads Google Tag Manager and HubSpot."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "unknown",
      "evidence": null,
      "note": null
    },
    "independent_audit": {
      "title": "Independent audit",
      "weight": 2,
      "answer": "unknown",
      "evidence": null,
      "note": null
    },
    "transparency_report": {
      "title": "Transparency report",
      "weight": 2,
      "answer": "unknown",
      "evidence": null,
      "note": null
    },
    "user_notice": {
      "title": "Tells users about requests",
      "weight": 1,
      "answer": "unknown",
      "evidence": null,
      "note": null
    },
    "tls": {
      "title": "TLS configuration",
      "weight": 2,
      "answer": "partial",
      "evidence": "https://www.ssllabs.com/ssltest/analyze.html?d=signalwire.com&hideResults=on",
      "note": "Grade A-"
    },
    "security_headers": {
      "title": "Security headers",
      "weight": 1,
      "answer": "no",
      "evidence": "https://developer.mozilla.org/en-US/observatory/analyze?host=signalwire.com",
      "note": "Grade C (50/100+)"
    },
    "web_standards": {
      "title": "Modern web standards",
      "weight": 1,
      "answer": "pending",
      "evidence": null,
      "note": "Not tested yet."
    },
    "content_retention": {
      "title": "Message content deleted or redacted",
      "weight": 3,
      "answer": "unknown",
      "evidence": null,
      "note": null
    },
    "eu_data_location": {
      "title": "EU data location",
      "weight": 1,
      "answer": "unknown",
      "evidence": null,
      "note": null
    }
  },
  "tests": {
    "ssllabs": "A-",
    "observatory": "C",
    "internetnl_web": null,
    "internetnl_mail": null,
    "trackers": [
      {
        "name": "Google Fonts",
        "host": "fonts.gstatic.com",
        "effect": "none"
      },
      {
        "name": "Google Tag Manager",
        "host": "www.googletagmanager.com",
        "effect": "no"
      },
      {
        "name": "HubSpot",
        "host": "js.hs-scripts.com",
        "effect": "no"
      }
    ],
    "tested_at": "2026-10-01T07:29:53.513Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}