Last Updated on August 26, 2026 by Mat Diekhake

Security Overview

ONLYOFFICE is a long‑running European office‑productivity suite developed by Ascensio System SIA. The website onlyoffice.com uses modern HTTPS encryption, enterprise‑grade hosting, and industry‑standard security controls. There are no known technical‑security risks associated with onlyoffice.com.

SSL/TLS & Encryption

  • HTTPS: Fully enforced across all pages, including cloud workspace, document editors, and partner portals.
  • TLS Certificate: Valid and issued by a major certificate authority.
  • Mixed‑Content Issues: None detected.
  • Cipher Suites: External scans show modern TLS configurations without deprecated ciphers.
  • Encryption Posture: All browser‑to‑server communication is encrypted end‑to‑end.

Hosting & Infrastructure

  • Hosting Provider: Enterprise‑grade hosting consistent with EU software vendors.
  • Server Location: Distributed across European and international data centers.
  • CDN Usage: Yes — used for global performance and reliability.
  • Reverse Proxy: No confirmed Cloudflare/Akamai/Fastly layer in public scans.
  • Domain Founded: May 13, 2009
  • Uptime Reputation: Stable, with no notable outages tied to the domain.
  • Infrastructure Risks: None identified.

Malware & Phishing Scan

  • Malware Detection: No malware detected on onlyoffice.com.
  • Phishing Flags: No phishing warnings associated with the domain.
  • Blacklist Checks: Not present on major threat blacklists.
  • Redirect Behavior: Clean and predictable.
  • Suspicious Scripts: No malicious or obfuscated scripts detected.
  • Third‑Party Injections: Limited to analytics, CRM, and marketing tools typical for SaaS vendors.

Privacy & Data Handling

ONLYOFFICE processes:

  • Account credentials
  • Document metadata
  • Workspace configuration data
  • Device identifiers
  • Usage analytics
  • Support ticket information

Tracking technologies include:

  • First‑party cookies
  • Standard analytics
  • CRM/marketing integrations

No excessive or unrelated tracking behavior is reported.

App Permissions (If Applicable)

ONLYOFFICE desktop and mobile apps may request:

  • Local storage access (for document editing)
  • Network access (for cloud sync)
  • Camera access (for QR login)
  • Notification access

These permissions match the intended functionality of office‑productivity tools.

Breach History

Publicly available information indicates:

  • No known breaches involving onlyoffice.com
  • No leaked customer databases
  • No credential‑exposure incidents tied to the domain
  • Historical advisories relate to self‑hosted deployments, not the website

There are no reported incidents affecting the onlyoffice.com website.

Security Certifications

ONLYOFFICE maintains:

  • ISO 27001 alignment
  • GDPR compliance
  • Documented security architecture
  • Regular independent audits
  • Structured vulnerability‑disclosure processes

These reflect a mature enterprise security posture.

Final Safety Verdict

ONLYOFFICE is technically safe to use. The website employs strong encryption, enterprise‑grade hosting, and industry‑standard security controls. External scans show no malware, no phishing, and no blacklist flags. Security concerns historically associated with ONLYOFFICE relate to self‑hosted configuration, not the onlyoffice.com website.

Website: onlyoffice.com