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Security report for gtmetrix.com

GTmetrix · Technology · Denmark

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

74/100

Risk levelMedium

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

GTmetrix is a well-established web performance testing and monitoring service founded in 2009. It offers a freemium SaaS model with free and PRO subscription plans, targeting website owners, developers, and digital marketers. The platform provides detailed performance reports using Lighthouse metrics, real user data, and actionable recommendations to optimize website speed and user experience. GTmetrix has analyzed over 1.3 billion pages, indicating strong market presence and trust. Technically, the website employs modern web technologies including JavaScript, HTML5, CSS3, and integrates Lighthouse for performance audits. DNS is managed via Cloudflare, ensuring reliable hosting infrastructure. The site is fast, mobile-optimized, and accessible, with a professional design and clear navigation. Privacy and cookie policies are comprehensive and GDPR compliant, supported by a consent mechanism. Security posture is good with HTTPS enforced and secure forms, though explicit security headers and a published security policy are absent. No vulnerabilities or exposed sensitive data were detected. The absence of direct contact emails or phone numbers is noted, with contact primarily via forms. Social media presence on major platforms enhances credibility. Overall, GTmetrix presents a low-risk profile with strong business credibility, technical maturity, and privacy compliance. Strategic improvements in security transparency and incident response readiness would further enhance trust and resilience.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

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 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 Consent Banner found

      GDPR requires explicit consent for non-essential cookies

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

  3. 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 gtmetrix.com

This scan found 20 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

€25per month

  • 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
75
Security headers
50
Email security
70
DNS health
80
Network security
100
GDPR outside view
68
Average
74

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 gtmetrix.com, from OffSeq Breach.

Total records
75,517
Employees
0
Customers
75,476
Third parties
41
Weak passwords
12%

8 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 gtmetrix.com.

Select it in the checkout above.

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

Technical appendix

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

Business context

Business profile

GTmetrix occupies a strong position in the web performance testing market, leveraging a freemium SaaS business model that attracts a broad audience from individual website owners to enterprise clients. Its competitive advantage lies in integrating Lighthouse metrics with real user data and offering extensive monitoring and alerting features. Revenue streams include PRO subscriptions and API access. The company demonstrates consistent branding and maintains active communication channels via blog and social media. The lack of direct contact emails suggests a focus on streamlined digital engagement. Growth indicators include a large volume of analyzed pages and continuous feature updates.

Security posture

The website demonstrates a mature security posture with mandatory HTTPS, secure login and signup forms, and cookie consent compliance. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options reduces defense-in-depth. No published security policy or vulnerability disclosure program limits transparency and incident response readiness. No exposed sensitive data or vulnerable libraries were detected, indicating good operational security hygiene. The site would benefit from publishing a security.txt file and providing explicit incident response contact channels to align with best practices and regulatory expectations.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Implement and serve security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Create and maintain a vulnerability disclosure program and publish a security.txt file.
  4. Provide explicit incident response contact information such as security@ or abuse@ email addresses.
  5. Enhance transparency by including direct company contact emails or phone numbers for support and security inquiries.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
GTmetrix
Description
GTmetrix is a free tool to test and monitor your page's performance. Using Lighthouse, GTmetrix generates scores for your pages and offers actionable recommendations on how to optimize them.
Key services
Website speed testing, Performance monitoring, Alerts and notifications, Historical performance tracking, Mobile and global location testing (PRO), API access
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, HTML5, CSS3, Lighthouse integration, Cloudflare DNS
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented
  • No exposed sensitive data in HTML
  • Secure login and signup forms with validation

Analytics and tracking

Services
Google Tag Manager (implied by gtag function)
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Termly resource blocker
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Comprehensive privacy, cookie, and terms of service policies are present.
  3. No direct contact emails or phone numbers found; contact is via form.
  4. Strong branding and professional design with clear navigation.
  5. Security posture is good but could be improved with explicit security policy and headers.
  6. No suspicious or malicious content detected.
  7. Social media presence on major platforms supports trustworthiness.
Technical notes

Notes

GTmetrix's technical infrastructure is modern and robust, leveraging JavaScript, HTML5, CSS3, and Lighthouse integration for performance auditing. The use of Cloudflare DNS enhances reliability and security. The website is fast loading, mobile optimized, and accessible with a professional design and clear navigation. The presence of a cookie consent banner and privacy policy indicates compliance with privacy regulations. No CMS or backend platform was explicitly detected, suggesting a custom or proprietary solution. The site uses Google Tag Manager for analytics and Termly for cookie management. Overall, the technical implementation supports a high-quality user experience and operational stability.
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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