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Security report for tennisnet.com

Media · Germany

Medium risk. 8 critical or high findings in Security headers, GDPR outside view and 3 other checks.

Security score

51/100

Risk levelMedium

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

The website tennisnet.com is a German-language sports news platform specializing in tennis coverage, including ATP and WTA news, live scores, and tournament updates. It targets tennis enthusiasts primarily in Germany and operates on the TYPO3 CMS platform, integrating various advertising and tracking technologies such as Google Analytics, Google Tag Manager, Facebook Pixel, and Google Adsense. The technical infrastructure is modern and supports mobile optimization, though performance is moderate. Security posture is generally good with HTTPS enabled, but lacks some security headers and explicit privacy and cookie policies. The absence of WHOIS data raises questions about domain registration legitimacy, though the website content and design appear professional and trustworthy. Overall, the site is functional and relevant to its audience but would benefit from enhanced privacy compliance and clearer business contact information.

Scanned

NIS2 and GDPR posture

GDPR outside view
58/ 100 · Medium
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

8 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. 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

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

Keep watching tennisnet.com

This scan found 22 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.

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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
67
Security headers
25
Email security
52
DNS health
85
Network security
20
GDPR outside view
58
Average
51

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention tennisnet.com, from OffSeq Breach.

Total records
20
Employees
0
Customers
20
Third parties
0
Weak passwords
15%

2 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for tennisnet.com.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Brand lookalikes

Add-on

Domains that imitate tennisnet.com and could be used for phishing or spoofed email, tracked in OffSeq Breach.

Tracked
17
Registered
17
Resolving
17
High or critical
0

Last checked 2026-06-20

Masked preview

  • te••••••.comMediumomission
  • en••••••.comMediumomission
  • te••••••••.comLowaddition

See the full lookalike list

A one-off add-on that lists up to 20 of the highest-risk lookalikes of tennisnet.com with registration, mail-server, certificate and DNS signals.

Select it in the checkout above.

Lookalike data refreshes continuously. Monitoring on Breach alerts you when a variant is registered, gains a mail server or starts serving HTTPS.

Technical appendix

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

Business context

Business profile

Tennisnet.com operates as a niche media outlet focusing on tennis news within Germany. Its business model revolves around content monetization through advertising networks and user engagement via live updates and rankings. The site leverages third-party marketing and retargeting tools to maximize ad revenue. While the site does not disclose detailed company information or certifications, its consistent branding and content quality suggest a medium-sized operation with a focused market presence. The lack of WHOIS transparency may be a privacy measure or an oversight, warranting further investigation for partnership or compliance purposes.

Security posture

The website employs HTTPS and integrates standard security practices but lacks visible security headers such as Content-Security-Policy or X-Frame-Options, which could enhance protection against common web attacks. No vulnerabilities or exposed sensitive data were detected in the analyzed content. The use of multiple third-party scripts introduces potential risk vectors that require ongoing monitoring. Privacy compliance is weak, with no clear GDPR or cookie consent mechanisms evident. Incident response and security policy information are absent, limiting the site's transparency and preparedness for security events.

Recommendations

  1. Implement comprehensive privacy and cookie policies with explicit user consent mechanisms to comply with GDPR.
  2. Add security headers like Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to strengthen security posture.
  3. Publish clear contact information including security incident response contacts to improve trust and compliance.
  4. Regularly audit and update third-party scripts to mitigate risks from external dependencies.
  5. Verify and update WHOIS domain registration details to ensure transparency and legitimacy.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Du suchst aktuelle Tennis News - ATP, WTA - von den Australien Open bis zu den nationalen Turnieren auf tennisnet.com
Key services
Tennis news, Live scores, Tournament coverage, Rankings and statistics
Content quality
good
Branding
consistent

Technology

Stack
TYPO3 CMS, Google Tag Manager, Google Analytics, Google Adsense, Facebook Pixel, CleverPush
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • No exposed sensitive data detected

Analytics and tracking

Services
Google Analytics, Google Tag Manager, Facebook Pixel
Tracking level
extensive
Privacy practices
poor

Advertising

Ad networks
Google Adsense, DoubleClick
Tracking pixels
Facebook Pixel
Marketing tools
CleverPush
Transparency
basic

Site quality

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

Key observations

  1. Website is a German tennis news portal powered by TYPO3 CMS
  2. Content is rich in tennis-related news and live updates
  3. No explicit privacy or cookie policies found in the provided HTML
  4. Multiple third-party tracking and advertising scripts are used
  5. No contact emails or phone numbers explicitly found in the HTML snippet
  6. No forms detected in the provided HTML content
  7. WHOIS data is missing, indicating possible privacy protection or domain registration anomaly
  8. SSL is enabled and appears properly configured
  9. No WAF or security challenge detected
Technical notes

Notes

The site is built on TYPO3 CMS, a robust and scalable content management system, indicating a mature technical foundation. It uses modern web technologies and integrates multiple analytics and advertising services. The site is mobile-optimized and includes preloading of fonts and responsive design elements. Performance is moderate, likely influenced by multiple ad scripts and tracking pixels. Accessibility features are basic but present. SEO is supported by meta tags and Open Graph data, enhancing social media sharing and search engine visibility. Hosting provider details are not explicitly found, and no CDN usage was detected in the provided content.
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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