Skip to main content

Security report for supersaas.nl

SuperSaaS · Technology · Netherlands

High risk. 7 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

48/100

Risk levelHigh

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

SuperSaaS is a well-established Dutch SaaS company founded in 2007, offering a flexible and reliable online reservation and appointment scheduling system. The platform targets small to medium-sized businesses and organizations worldwide, providing extensive customization, integration with popular services like Google Calendar, PayPal, and Zoom, and a free tier without expiration. The website is professionally designed, mobile-optimized, and rich in content, including detailed FAQs, customer testimonials, and multiple trust signals from review platforms. Technically, the site employs modern JavaScript technologies, Google Tag Manager, and various analytics and marketing tools, with a strong focus on user privacy and cookie consent. Security posture is good with HTTPS enforced and no visible vulnerabilities, though explicit security policies and incident response contacts are not publicly disclosed. Overall, the site demonstrates high professionalism, trustworthiness, and compliance with GDPR, making it a credible and mature online service provider.

Scanned

NIS2 and GDPR posture

GDPR outside view
28/ 100 · High
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

7 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

  2. 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  3. 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 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';…

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

Keep watching supersaas.nl

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
0
Security headers
15
Email security
72
DNS health
70
Network security
100
GDPR outside view
28
Average
48

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

SuperSaaS holds a strong market position as a flexible and customizable online scheduling solution with over 205,000 customers globally. Its business model is SaaS with free and paid subscription tiers, appealing to a broad range of industries including personal services, health, education, and events. The company leverages partnerships with payment processors and communication platforms to enhance service offerings. The website's multilingual support and extensive integrations indicate a scalable and customer-centric approach. The presence of affiliate and reseller programs suggests an active partner ecosystem. The company’s longevity and positive customer feedback reflect stable growth and market acceptance.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and no exposed sensitive data. It uses cookie consent mechanisms aligning with privacy regulations. However, there is no explicit security policy or incident response contact information published, which could be improved to enhance transparency and readiness. No security.txt or vulnerability disclosure policy is found. The use of multiple third-party analytics and marketing scripts is balanced with user consent, but continuous monitoring for library vulnerabilities is recommended. Overall, the security practices are solid but could benefit from formal documentation and communication of security policies.

Recommendations

  1. Publish a dedicated security policy page detailing security practices and compliance.
  2. Add explicit incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and document security headers like X-Frame-Options and X-Content-Type-Options.
  4. Consider publishing a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  5. Maintain regular audits of third-party libraries and scripts to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
SuperSaaS
Description
SuperSaaS biedt een flexibel en betrouwbaar online reserveringssysteem waarmee gebruikers zelf afspraken en reserveringen kunnen maken. Het systeem is eenvoudig te integreren op eigen websites en biedt een gratis versie zonder vervaldatum.
Key services
Online reserveringssysteem, Agenda- en afspraakplanning, Integraties met Google Calendar, Microsoft 365, PayPal, Zoom, etc., Online betalingen en kredietsysteem, Aanpasbare workflows en lay-out
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Google Analytics, PayPal integration, Mollie integration, Zoom integration, MessageBird SMS gateway
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of consent mechanism for cookies
  • No visible vulnerable libraries

Analytics and tracking

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

Advertising

Ad networks
Google Ads (AW-1057607398)
Tracking pixels
Facebook Pixel, Bing Analytics, RD Analytics
Marketing tools
Facebook Analytics
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 no blocking mechanisms.
  2. Strong presence of trust indicators including multiple review platforms and customer testimonials.
  3. Comprehensive FAQ and documentation available in Dutch.
  4. Multiple integrations with popular services enhance functionality.
  5. Good privacy and cookie policy presence with consent mechanism.
  6. No direct contact emails or phone numbers found; contact is via form.
  7. No explicit security policy or incident response contact found.
  8. Modern and performant website with mobile optimization.
  9. Use of multiple analytics and marketing tools with consent.
Technical notes

Notes

The website uses a modern technology stack including JavaScript, Google Tag Manager, and integrations with payment and communication platforms. It is mobile-optimized with responsive design and fast loading times. SEO is well addressed with proper meta tags and structured data (JSON-LD). Accessibility is good, though no explicit ARIA roles or accessibility statements were found. The site does not appear to use a common CMS, suggesting a custom or proprietary platform. Hosting provider details are not explicit. Performance is fast with efficient use of static resources. Opportunities exist to enhance security headers and formalize technical documentation for security and accessibility.
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 supersaas.nl. 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 supersaas.nl.

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.