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Security report for 21.com

21.com · E-commerce · Finland

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

73/100

Risk levelMedium

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

21.com is an online casino platform targeting Finnish-speaking users, offering a variety of casino and live casino games along with promotional bonuses. The website is professionally designed with good content quality and clear navigation, optimized for mobile devices. Technically, it uses modern frameworks such as Angular and integrates analytics and chat support tools, indicating a mature digital infrastructure. Security posture is strong with HTTPS enforced and appropriate security headers, though explicit security policies and incident response contacts are not found. The domain WHOIS data is missing, which raises moderate concerns about domain legitimacy, but the website itself appears operational and trustworthy. Overall, the site presents a solid online gambling service with room for improvement in transparency and contact information.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
Checks completed
7of 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

4 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

Need hands-on remediation? Email guard@offseq.com

Keep watching 21.com

This scan found 19 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

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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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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
65
Security headers
20
Email security
85
DNS health
85
Network security
100
GDPR outside view
83
Average
73

Not counted

  • 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 business operates in the e-commerce sector focusing on online gambling, serving a medium-sized market primarily in Finland. It leverages partnerships with multiple game providers and uses standard industry certifications and responsible gambling indicators to build trust. The business model is based on user deposits and gaming revenue, targeting adult players interested in casino games. The website's content and branding are consistent, supporting a professional market position. However, the lack of visible company registration or contact details limits full business credibility assessment.

Security posture

The website demonstrates a good security maturity level with HTTPS, security headers, and no visible vulnerabilities in the HTML content. However, the absence of a published security policy, incident response contacts, or vulnerability disclosure mechanisms indicates gaps in compliance and readiness. Data protection practices appear adequate with GDPR-compliant privacy and cookie policies. The use of third-party analytics and chat services introduces some tracking but is managed with consent mechanisms. Overall, the security posture is solid but could benefit from enhanced transparency and formal security documentation.

Recommendations

  1. Publish a dedicated security policy and incident response contact information on the website.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Provide clear company contact emails and phone numbers to improve business credibility.
  4. Enhance accessibility features to improve compliance and user experience.
  5. Regularly review and audit third-party scripts and tracking tools for security and privacy compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
21.com
Description
21.com tarjoaa pelaajille mahtavat kasinobonukset sekä upean live-kasinon, jossa pääset nauttimaan upeista voitoista ja palkinnoista.
Key services
Online casino games, Live casino, Promotions and bonuses
Content quality
good
Branding
consistent

Technology

Stack
Angular 17.3.11, Google Tag Manager, Inspectlet, Freshchat, Swiper.js
Frameworks
Angular
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure cookies
  • No exposed sensitive data in HTML
  • Use of security headers

Analytics and tracking

Services
Inspectlet, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Inspectlet, Freshchat
Marketing tools
Freshchat
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge
  2. Content is professionally presented in Finnish language
  3. Multiple casino games and promotions are featured
  4. No direct company contact emails or phone numbers found in HTML
  5. Privacy and cookie policies are present and indicate GDPR compliance
  6. WHOIS data is missing or domain is not found in public WHOIS database
  7. Use of modern web technologies and analytics tools
  8. Security headers and HTTPS are properly implemented
Technical notes

Notes

The website is built on Angular 17.3.11, using modern JavaScript frameworks and libraries such as Swiper.js for UI components. It integrates Google Tag Manager and Inspectlet for analytics and Freshchat for customer support. The site is mobile-optimized with responsive design and uses secure HTTPS connections. Performance is moderate with some room for optimization. No CMS is explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not available from the HTML content. Overall, the technical infrastructure is modern and well-implemented with opportunities for further performance tuning and accessibility improvements.
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

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