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Security report for onlyoffice.com

Ascensio System SIA · Technology · Latvia

Partial score · DNS & email only

75/100

0–100, higher is better. How it is calculated

ONLYOFFICE, operated by Ascensio System SIA, is a comprehensive online office suite and collaboration platform targeting businesses, developers, and home users. It offers a wide range of document editing, collaboration, and AI-powered assistant tools accessible via web, desktop, and mobile applications. The company holds a strong market position with over 15 million users worldwide and multiple industry recognitions. The website demonstrates a mature digital presence with modern technologies and extensive content supporting its business offerings. Security and privacy are prioritized, with compliance to international standards such as ISO 27001, HIPAA, GDPR, and HDS, and open-source transparency through GitHub. Contact channels and support options are clearly provided, enhancing business credibility. However, the absence of WHOIS registration data introduces some uncertainty regarding domain registration legitimacy, though this is mitigated by other trust signals.

Scanned

This is an earlier scan of onlyoffice.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
65/ 100 · Medium
Checks completed
6of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

3 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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Keep watching onlyoffice.com

This scan found 12 issues across 5 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
72
Email security
85
DNS health
90
Network security
100
GDPR outside view
65
Average
82
After the cap
75

Not counted

  • Security headers: did not complete in this scan.
  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The company operates a multi-faceted business model including SaaS offerings, self-hosted solutions, developer APIs, and free desktop/mobile apps. Its target market spans enterprises, developers, and individual users seeking secure and compatible office productivity tools. The partnership ecosystem includes integrations with major platforms like Box, Moodle, Nextcloud, and Odoo. Revenue streams likely derive from enterprise licenses, developer editions, and value-added services. The company maintains a strong brand with consistent messaging and a global reach, supported by multilingual website versions and extensive marketing efforts. Growth indicators include recent product releases and active community engagement.

Security posture

ONLYOFFICE exhibits a robust security posture with multiple encryption layers, secure access controls, and compliance with key international standards. The open-source nature of the software enhances transparency and trust. The website uses HTTPS and integrates security-focused features, though explicit security headers and a public vulnerability disclosure policy are not evident. Incident response contact information is not publicly available, which could be improved. Overall, the security maturity is high, suitable for enterprise-grade deployments.

Recommendations

  1. Implement and publish security headers such as Content Security Policy (CSP), HSTS, and X-Frame-Options to enhance web security.
  2. Create and maintain a public vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  3. Provide clear incident response contact channels, including dedicated security or abuse email addresses.
  4. Regularly audit and update third-party libraries and dependencies to mitigate potential vulnerabilities.
  5. Enhance cookie security by setting HttpOnly, Secure, and SameSite attributes to protect user sessions.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Ascensio System SIA
Description
ONLYOFFICE is an online office suite integrated with a collaboration platform to manage documents, projects, team and customer relations in one place.
Key services
Online document editors, Collaboration platform (DocSpace), Developer edition APIs, Desktop and mobile office apps, AI-powered virtual assistants, Secure document management
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Google Tag Manager, Bing Ads, Zendesk Chat, Rewardful affiliate tracking, Lodash, XRegExp, SJCL (Stanford Javascript Crypto Library), Moment.js with timezone, Pushy menu, jQuery UI
Platforms
Web, Windows, Linux, macOS, Android, iOS
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Open-source transparency
  • Multiple encryption levels (at rest, in transit, end-to-end)
  • Secure access and monitoring tools
  • Extra document permissions

Analytics and tracking

Services
Google Analytics, Microsoft Clarity, G2 Attribution
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Bing Ads
Tracking pixels
Microsoft Clarity, Reddit Pixel, Google Analytics (via GTM), G2 Attribution Tracking
Marketing tools
Zendesk Chat
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with rich content and professional design
  2. Strong emphasis on security and privacy with multiple certifications
  3. Open-source transparency with GitHub presence
  4. Multiple contact channels including phone, email, and chat
  5. Comprehensive product offerings for business, developers, and home users
  6. Use of modern web technologies and analytics tools
  7. No signs of WAF or content blocking
  8. WHOIS data missing or unavailable, which is a concern but mitigated by other trust factors
Technical notes

Notes

The website employs a modern and diverse technology stack including jQuery, Lodash, Moment.js, and cryptographic libraries like SJCL. It integrates multiple analytics and marketing tools such as Google Tag Manager, Bing Ads, Microsoft Clarity, and Rewardful affiliate tracking. The site is mobile-optimized with responsive design and accessibility considerations. Performance is moderate, with potential for improvement through optimization of scripts and assets. No CMS is explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not disclosed. The technical implementation supports a professional and scalable online presence.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

Earlier scans of this domain

  1. 78/100Low24 findingsView report
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