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Security report for gridcraft.me

ArtCraft · Technology

Low risk. 1 critical or high finding in Email security.

Security score

88/100

Risk levelLow

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

GridCraft.me is an independent educational and resource website dedicated to the open-source spreadsheet software GridCraft, developed by ArtCraft. The site offers downloads, installation guides, Excel comparisons, and an online editor workspace. It targets users seeking an open-source alternative to Microsoft Excel, providing practical tutorials and direct links to official GitHub releases. The business model is based on open-source software distribution and community engagement, positioning itself as a niche player in the spreadsheet software market currently in alpha stage. Technically, the website employs modern web technologies including Rust, WebAssembly, React, and JavaScript, delivering a fast, mobile-optimized, and accessible user experience. The site is hosted with HTTPS and uses minimal tracking via Plausible Analytics, reflecting a privacy-conscious approach. However, it lacks explicit privacy, cookie, and terms of service policies, and does not provide direct contact information, which limits its privacy compliance and business credibility scores. From a security perspective, the site enforces HTTPS and avoids exposing sensitive data or vulnerable libraries. No security headers were detected in the provided content, and no vulnerability disclosure or incident response policies are published. The absence of these policies and contact channels for security incidents represents an area for improvement. The domain uses privacy protection for WHOIS data, consistent with its status as an independent guide site. Overall, GridCraft.me is a professionally designed and trustworthy resource for users interested in the GridCraft spreadsheet project. Strategic recommendations include publishing comprehensive privacy and cookie policies with consent mechanisms, adding security headers, providing incident response and vulnerability disclosure information, and offering clear contact details to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

NIS2 outside view
65/ 100 · Medium
GDPR outside view
85/ 100 · Low
Checks completed
9of 9

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

The NIS2 figure counts only evidence anyone can see from the internet. 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

1 finding rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • High

      No DMARC record found

      There is no DMARC record at _dmarc.gridcraft.me, so receivers have no instruction for mail that fails SPF and DKIM.

      What to do: Publish a TXT record at _dmarc.gridcraft.me, starting with "v=DMARC1; p=none; rua=mailto:dmarc@gridcraft.me" and moving to p=quarantine or p=reject once reports look clean.

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

Keep watching gridcraft.me

This scan found 11 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

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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
89
Security headers
92
Email security
72
DNS health
95
Network security
100
Website hygiene
85
GDPR outside view
85
Average
88

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.
  • Accessibility: Accessibility is a separate readout from security, so it is reported but not scored. 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 gridcraft.me, from OffSeq Breach.

No leaked records found

Breach holds no records for gridcraft.me right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

GridCraft.me operates as an independent guide and workspace for the GridCraft open-source spreadsheet software developed by ArtCraft. It serves a niche market of users seeking free, open-source spreadsheet alternatives. The site leverages partnerships with ArtCraft and GitHub for official software releases and source code hosting. Its business model focuses on community engagement and educational content rather than direct monetization. The target audience includes individual users, educators, and professionals exploring spreadsheet tools. The site demonstrates growth potential through its comprehensive guides and multi-platform support but remains in alpha stage, indicating early market positioning. The partnership ecosystem is limited but relevant, linking to official project and community resources.

Security posture

The website demonstrates a moderate to good security posture with HTTPS enforced and no visible exposure of sensitive data. The use of modern technologies like Rust and WebAssembly for the underlying software indicates a focus on secure and efficient computation. However, the absence of explicit security headers, privacy and cookie policies, and incident response mechanisms reduces overall security maturity. No forms on the main page collect sensitive user data, minimizing attack surface. The lack of vulnerability disclosure and security.txt files suggests limited readiness for coordinated security incident handling. Overall, the site is secure for informational and download purposes but would benefit from enhanced security governance and transparency.

Recommendations

  1. Publish a comprehensive privacy policy and cookie policy with user consent mechanisms to improve privacy compliance.
  2. Implement standard security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Provide clear incident response and vulnerability disclosure policies, including a security contact email or security.txt file.
  4. Add verified contact information to enhance business credibility and user trust.
  5. Maintain regular security audits and update dependencies to avoid vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ArtCraft
Description
GridCraft is an open-source spreadsheet application developed by ArtCraft, offering downloads, installation guides, Excel feature comparisons, and hands-on usage experiences.
Key services
Open-source spreadsheet software, Online editor workspace, Desktop application downloads, Educational guides and tutorials
Content quality
excellent
Branding
consistent

Technology

Stack
Rust, WebAssembly, JavaScript, React
Frameworks
React
Platforms
Windows, macOS, Linux, Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced (implied by canonical URL and external scripts)
  • No exposed sensitive data in HTML
  • No forms collecting sensitive data on main page

Analytics and tracking

Services
Plausible Analytics
Tracking level
minimal
Privacy practices
basic

Advertising

Tracking pixels
plausible.io
Marketing tools
Plausible Analytics
Transparency
basic

Site quality

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

Key observations

  1. Website is an independent guide and workspace for the open-source GridCraft spreadsheet project.
  2. No direct official ownership claimed; clear disclaimers about independence.
  3. No privacy, cookie, or terms of service policies found on main page.
  4. No contact emails or phone numbers explicitly provided.
  5. Uses modern web technologies and provides a good user experience.
  6. No forms collecting personal data on the homepage.
  7. Includes educational content and download links pointing to official GitHub releases.
  8. No signs of adult or questionable content.
  9. Minimal tracking via Plausible Analytics, respecting privacy.
Technical notes

Notes

The website is built using modern web technologies including React for the frontend, Rust and WebAssembly for the core spreadsheet engine, and JavaScript for interactivity. It supports multiple platforms including Windows, macOS, Linux, and web browsers. The site is well-optimized for performance and mobile responsiveness, with good accessibility features. SEO is supported through proper meta tags, Open Graph, and JSON-LD structured data. Hosting details are not explicit but the site uses HTTPS and external analytics via Plausible. There is no detected CMS, indicating a custom or static site approach. Technical risks are minimal but could arise from lack of security headers and incomplete privacy compliance.
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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