Sumo Group, Inc. · Technology · N/a
Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.
TidyCal is a technology company offering a simple and effective calendar management and booking solution targeted primarily at individuals and small businesses. The platform emphasizes ease of use, affordability, and key features such as unlimited booking types, custom availability, group bookings, and auto-generated meeting URLs. Positioned as a cost-effective alternative to larger competitors like Calendly, TidyCal leverages partnerships with AppSumo and ProductHunt to build trust and market presence. The business operates under Sumo Group, Inc., founded in 2021, and offers a freemium model with an optional lifetime deal purchase. Technically, the website is built with modern web standards including HTML5, CSS3, and JavaScript, and integrates third-party services such as Google Tag Manager, Facebook Pixel, and Chatbase chatbot for analytics and user engagement. Hosting and domain registration are managed via Amazon AWS infrastructure, ensuring reliable performance and scalability. The site is mobile-optimized, fast-loading, and SEO-friendly, with clear navigation and professional design. From a security perspective, the website enforces HTTPS and includes CSRF tokens in forms, indicating attention to secure data handling. However, the absence of DNSSEC and explicit security headers suggests room for improvement. Privacy compliance is partially addressed with a comprehensive privacy policy and terms of service, but lacks a cookie consent mechanism. No direct contact emails or phone numbers are publicly listed, which may impact user trust and support accessibility. Overall, TidyCal presents a professional and trustworthy online presence with strong business credibility and technical maturity. Strategic enhancements in security headers, cookie consent, and incident response transparency would further strengthen its security posture and compliance standing.
Scanned
NIS2 Art. 21(2)
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.
5 findings rated critical or high. Fix these first.
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.
Forces HTTPS connections
What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"
Controls resources the browser is allowed to load
What to do: Implement a Content-Security-Policy appropriate for your application
These are the privacy signals visitors and data protection authorities look for under GDPR.
GDPR requires clear information about cookie usage
What to do: Add a dedicated cookie policy explaining cookie usage and purposes
GDPR requires explicit consent for non-essential cookies
What to do: Implement a cookie consent banner that appears on first visit
TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.
Server supports weak protocols: TLSv1.1
What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions
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This scan found 21 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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Each check with its score, findings and the evidence it collected.
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
Not counted
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.
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
Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.
Leaked records that mention tidycal.com, from OffSeq Breach.
1 subdomain affected
See the 10 newest leaked credentials
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Breach keeps ingesting new leaks, so these numbers can grow between scans.
Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.
Automated reading of the public site. Ratings are indicative.
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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