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Security report for rychlost.cz

Rychlost.cz · Technology · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

59/100

Risk levelMedium

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

Rychlost.cz is a well-established Czech internet speed testing service operating since 2004. It offers users the ability to measure download, upload, and ping speeds with detailed statistics and community forums. The website is technically mature, employing modern JavaScript technologies, multiple hosting partners, and mobile optimization. Advertising is primarily through Google Adsense, with some tracking pixels for analytics and consent management. Security posture is solid with HTTPS enforced and no visible vulnerabilities, though explicit security headers and a formal security policy are absent. Privacy compliance is adequate with a comprehensive privacy policy and cookie consent mechanisms, but direct contact details are limited to a contact form. Overall, the site is trustworthy and serves a niche audience effectively.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
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. GDPR outside view

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

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

  2. 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 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';…

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

Keep watching rychlost.cz

This scan found 26 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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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
42
Security headers
30
Email security
85
DNS health
70
Network security
100
GDPR outside view
25
Average
59

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 rychlost.cz, from OffSeq Breach.

Total records
397
Employees
0
Customers
397
Third parties
0
Weak passwords
34%

1 subdomain 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 rychlost.cz.

Select it in the checkout above.

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

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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 targets Czech internet users seeking reliable speed testing and network statistics. Its competitive advantage lies in its longevity, detailed data, and community engagement through forums. Revenue is likely driven by advertising and partnerships with hosting providers who operate test servers. The business model is service-oriented with a focus on transparency and user engagement. The site maintains consistent branding and content quality, supporting a strong market position in the Czech Republic's internet services sector.

Security posture

The website demonstrates a good security baseline with HTTPS and secure data transmission. However, it lacks published security policies, incident response contacts, and security.txt files, which are important for vulnerability disclosure and incident management. No critical vulnerabilities or exposed sensitive data were detected. The use of third-party scripts is limited to trusted sources like Google Adsense. Recommendations include adding security headers and formalizing security policies to enhance trust and compliance.

Recommendations

  1. Implement HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Publish a dedicated security policy and incident response contact information.
  3. Consider adding a security.txt file to facilitate vulnerability reporting.
  4. Enhance accessibility features to meet compliance standards.
  5. Provide direct company contact emails and phone numbers to improve transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rychlost.cz
Description
Test rychlosti připojení k internetu se statistikami připojení. Rychlost internetu v ČR a ve světě.
Key services
Internet speed testing, Statistics and historical data on internet speeds, Forums and community discussions, Hosting test servers for providers
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Google Adsense, Google Funding Choices, XMLHttpRequest, Fetch API, SVG graphics
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of secure XMLHttpRequest and Fetch API
  • No visible vulnerable libraries

Analytics and tracking

Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Adsense
Tracking pixels
toplist.cz
Marketing tools
Google Funding Choices
Transparency
basic

Site quality

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

Key observations

  1. Website provides a comprehensive internet speed testing service focused on Czech Republic users.
  2. Content is well-structured with multiple language versions linked.
  3. Advertising is primarily via Google Adsense with some tracking pixels.
  4. No direct contact emails or phone numbers found; contact is via form.
  5. No explicit security policy or incident response information published.
  6. Good use of modern web technologies and mobile optimization.
  7. No signs of malicious or suspicious content or domains.
Technical notes

Notes

The site uses a custom JavaScript-based speed test with SVG graphics and asynchronous requests to multiple hosting servers. It leverages Google Adsense for monetization and Google Funding Choices for consent management. The hosting infrastructure is distributed among several Czech and international providers, enhancing reliability. The site is mobile-optimized and performs well with fast loading times. There is no evidence of a CMS, indicating a custom-built platform. Technical debt appears low, but adding modern security headers and accessibility improvements would further strengthen the platform.
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. 56/100Medium36 findingsView report
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