Skip to main content

Security report for smashingwindows.com

Smashing Windows Ltd · Real Estate · United Kingdom

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

68/100

Risk levelMedium

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

Smashing Windows Ltd is a well-established local business specializing in double glazing, window repairs, and door installations in Buckinghamshire, UK. The company emphasizes quality workmanship, CERTASS registration, and customer satisfaction with over 40,000 sealed units replaced since 2003. Their business model focuses on direct service delivery with online instant quote tools, targeting homeowners in the region. The website is professionally designed, mobile-optimized, and provides clear navigation and comprehensive service information. Technically, the website leverages modern web technologies including Next.js and React, ensuring fast performance and good SEO practices. Google Analytics and Tag Manager are used with privacy-conscious configurations. The site employs HTTPS with secure cookie flags, though some security headers like Content-Security-Policy are not explicitly present. From a security perspective, the site demonstrates good practices such as HTTPS enforcement and no visible vulnerabilities or exposed sensitive data. However, the absence of explicit security policies and incident response contacts is a gap. The missing WHOIS data for the domain is a notable concern, as it conflicts with the business's claimed history and may impact trustworthiness. Overall, the website is high quality and trustworthy in content and design but would benefit from improved transparency in domain registration and enhanced security headers. Strategic recommendations include publishing security policies, adding security.txt, and verifying domain registration details to strengthen credibility and compliance.

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

5 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 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 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 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
    • 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 smashingwindows.com

This scan found 23 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

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

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
52
Security headers
30
Email security
85
DNS health
70
Network security
100
GDPR outside view
68
Average
68

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

Smashing Windows Ltd holds a strong market position as a specialist double glazing and window repair service provider in Buckinghamshire. Their competitive advantages include CERTASS registration, extensive experience, and transparent pricing with instant online quotes. The business targets residential customers seeking quality home improvement solutions. Revenue streams likely derive from installations, repairs, and related door services. The company maintains a professional online presence with social media engagement and a clear service portfolio. Partnerships with local manufacturers (e.g., Liniar windows) and web development agencies (IT Boffins) support their operations. Growth indicators include a large volume of units replaced and positive customer reviews. Strategic observations suggest focusing on digital marketing and enhancing trust signals to expand market share.

Security posture

The website exhibits a mature security posture with HTTPS enforced and privacy-aware analytics configurations. Security best practices such as secure cookie flags and denial of ad personalization are implemented. However, the absence of explicit Content-Security-Policy and other security headers like X-Frame-Options limits protection against certain web attacks. No incident response or security policy is published, which reduces transparency and preparedness. The missing WHOIS data for the domain raises questions about domain legitimacy and registration transparency, which is a critical security and trust concern. Overall, the site is secure for users but should improve header policies and publish security governance documents to enhance compliance and incident readiness.

Recommendations

  1. Publish a comprehensive security policy and incident response contact information on the website.
  2. Implement and enforce Content-Security-Policy, X-Frame-Options, and X-XSS-Protection headers to strengthen web security.
  3. Verify and update domain WHOIS registration details to ensure transparency and trustworthiness.
  4. Add a security.txt file to facilitate vulnerability disclosure and improve security communication.
  5. Continue enhancing privacy compliance by maintaining clear cookie consent mechanisms and GDPR-aligned policies.

Contact details published on the site

Addresses
Legal name
Smashing Windows Ltd
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Smashing Windows Ltd
Description
CERTASS registered double glazing specialists in Aylesbury, Buckinghamshire. Window installations, repairs, sealed unit replacement, doors and bi-fold doors. Over 40,000 sealed units replaced since 2003.
Key services
Window Installations, Window Repairs (Sealed Unit Replacement), New Doors & Bi-Fold Doors, Door Repairs, Secondary Glazing, Pet Flaps Installation
Content quality
excellent
Branding
consistent

Technology

Stack
Next.js, React, Google Tag Manager, Google Analytics, WebP images, Modern CSS (Tailwind CSS classes inferred), Font loading with WOFF2
Frameworks
Next.js, React
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Google Analytics configured with privacy settings (ads_data_redaction, consent denied for ad storage)
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected in scripts

Analytics and tracking

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

Advertising

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. No WAF or blocking mechanisms detected
  3. WHOIS data missing, which is unusual and warrants further investigation
  4. Strong trust signals on website including certifications and customer reviews
  5. Good privacy and cookie policies with consent mechanisms
  6. No explicit security or incident response policies published
  7. Modern technology stack with Next.js and React
  8. Google Analytics configured with privacy considerations
Technical notes

Notes

The website is built on a modern React and Next.js framework, enabling server-side rendering and optimized performance. Use of WebP images and font preloading improves load times and user experience. Google Tag Manager and Analytics are integrated with privacy settings to limit ad tracking. The site is mobile responsive with accessible navigation and semantic HTML structure. No traditional CMS detected, indicating a custom or headless CMS approach. Technical debt appears low with clean markup and modern CSS utility classes (likely Tailwind CSS). Opportunities exist to improve security headers and add explicit hosting provider information. Overall, the technical infrastructure supports a fast, secure, and user-friendly website aligned with business goals.
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

Reviews of this site

Share your experience with smashingwindows.com. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review smashingwindows.com.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.