Security report for sepa.net
GRÜN IT Group GmbH · Finance · Germany
SEPA.net, operated by GRÜN IT Group GmbH, provides an innovative online payment system specializing in SEPA direct debit transactions across Europe. The service targets online merchants and buyers, enabling seamless payment processing without requiring buyer registration. The platform offers multiple integration options including purchase buttons, iFrame/mobile integration, API interfaces for recurring payments, and a WordPress plugin for WooCommerce stores. The website is professionally designed, mobile-optimized, and provides clear business and contact information, enhancing user trust and accessibility. Technically, the website is built on WordPress with WooCommerce and utilizes modern JavaScript libraries and plugins such as jQuery, MediaElement.js, and WPBakery Page Builder. SEO is well-implemented with Yoast SEO plugin, and the site employs HTTPS with strong SSL encryption. Cookie consent mechanisms and privacy policies are in place, reflecting GDPR compliance. However, the absence of WHOIS domain registration data raises concerns about domain legitimacy and trustworthiness. From a security perspective, SEPA.net demonstrates good practices including transaction authorization via security TAN, adherence to German data protection laws, and encrypted communications. Nonetheless, the site lacks explicit incident response and vulnerability disclosure information, which could be improved to enhance transparency and readiness. Overall, the platform presents a solid security posture suitable for its payment processing business model. The main risk identified is the missing WHOIS data, which impacts domain trust and could affect user confidence. Strategic recommendations include publishing security headers, adding incident response details, and maintaining regular security audits. These steps will strengthen the platform's security and compliance stature, supporting its growth and market position.
Scanned
NIS2 and GDPR posture
- NIS2 outside view
- Not assessed
- GDPR outside view
- Not assessed
Both readouts depend on the site's pages, which could not be loaded in this scan.
Priority findings
No critical or high findings. These medium findings are worth fixing next.
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.
- Medium
No DKIM record found
DKIM adds cryptographic signatures to emails
What to do: Configure DKIM with your email provider
- Medium
No MTA-STS Policy
MTA-STS enforces TLS for email delivery
What to do: Implement MTA-STS to prevent downgrade attacks
- RFC 8461
- NIS2 21(2)(e)
- IR 2024/2690 6.7.2(k): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(k): Network security
- NIST SP 800-177r1
- Medium
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.
- Medium
SSL Certificate Expires Within 90 Days
SSL certificate expires in 84 days
What to do: Plan SSL certificate renewal
- Medium
Mixed Content Detected
1 resources loaded over insecure HTTP
What to do: Ensure all resources (images, scripts, stylesheets) are loaded over HTTPS
- Medium
DNS health
DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.
- Medium
DNSSEC Not Enabled
DNSSEC is not configured for this domain
What to do: Enable DNSSEC to prevent DNS spoofing attacks
- CAPEC-142
- RFC 4033
- RFC 4035
- NIS2 21(2)(e)
- IR 2024/2690 6.7.2(l): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(l): Network security
- NIST SC-20: NIST SP 800-53 Rev. 5 SC-20: Secure Name/Address Resolution Service (Authoritative Source)
- Medium
No DMARC Record
DMARC policy not configured
What to do: Implement DMARC to prevent email spoofing
- Medium
Keep watching sepa.net
This scan found 12 issues across 4 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.
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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
- 85
- Email security
- 70
- DNS health
- 70
- Network security
- 100
- Average
- 81
- After the cap
- 75
Not counted
- Security headers: did not complete in this scan.
- GDPR outside view: did not complete in this scan.
- 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
Security posture
Recommendations
- Implement and publish comprehensive security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options to enhance protection against common web attacks.
- Develop and publicly share an incident response plan and vulnerability disclosure policy to improve transparency and readiness for security events.
- Conduct regular security audits and update third-party plugins to minimize risks from vulnerabilities.
- Enhance website accessibility features to comply with standards and improve user experience for all visitors.
- Investigate and resolve the missing WHOIS domain registration data to improve domain legitimacy and user trust.
Contact details published on the site
- Addresses
- Legal name
- GRÜN IT Group GmbH
Site observations
Automated reading of the public site. Ratings are indicative.
Business
- Company
- GRÜN IT Group GmbH
- Description
- SEPA.net is an innovative online payment system service for Europe-wide immediate purchase, processing payments via direct debit without requiring buyer registration.
- Key services
- Online direct debit payment processing, Purchase button integration, iFrame & Mobile integration, API interface for recurring payments, WordPress plugin for WooCommerce
- Content quality
- good
- Branding
- consistent
Technology
- Stack
- WordPress, WooCommerce, jQuery, MediaElement.js, Ultimate VC Addons, Yoast SEO
- Frameworks
- WPBakery Page Builder
- Platforms
- WordPress
- Performance
- moderate
- Mobile
- good
- Accessibility
- basic
- SEO
- good
Security
- Observed score
- 85/100
- Good practices seen
- HTTPS enforced
- 256-bit SSL encryption
- Security TAN for transaction authorization
- German data protection compliance
- Cookie consent mechanism
Analytics and tracking
- Tracking level
- minimal
- Privacy practices
- good
Advertising
- Marketing tools
- WooCommerce order attribution
- Transparency
- basic
Site quality
- Design
- good
- User experience
- good
- Content relevance
- good
- Navigation
- good
- Professionalism
- good
- Trustworthiness
- high
Key observations
- Website is fully accessible with no blocking or WAF detected.
- Content is business-oriented, focusing on SEPA direct debit payment solutions.
- Clear contact information and company details provided.
- No WHOIS data available, raising concerns about domain registration status.
- Good use of HTTPS and security practices for payment processing.
- Cookie consent and privacy policy are implemented and GDPR compliant.
- No social media links detected on the analyzed page.
- No explicit security incident response or vulnerability disclosure information found.
Technical notes
Notes
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.
- MITRE CWE (opens in a new tab)4.20 (2026-04-30) · CWE Terms of Use (free use with attribution, © MITRE)
- OWASP Top 10:2025 (opens in a new tab)2025 (membership per CWE 4.20) · CC BY-SA 4.0
- MITRE CAPEC (opens in a new tab)3.9 (2023-01-24) · CAPEC Terms of Use (free use with attribution, © MITRE)
- OWASP ASVS (opens in a new tab)5.0.0 · CC BY-SA 4.0
- OWASP Web Security Testing Guide (opens in a new tab)latest (checklist.json, master) · CC BY-SA 4.0
- OWASP Secure Headers Project (opens in a new tab)2026-10-18 · Apache-2.0
- Mozilla Server Side TLS (intermediate) (opens in a new tab)6.0 · MPL-2.0
- NIST SP 800-53 Rev. 5 (OSCAL catalog) (opens in a new tab)5.2.0 · Public domain (US Government work)
- Directive (EU) 2022/2555 (NIS2) (opens in a new tab)OJ L 333, 27.12.2022 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- Commission Implementing Regulation (EU) 2024/2690 (opens in a new tab)OJ L, 18.10.2024 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- Regulation (EU) 2016/679 (GDPR) (opens in a new tab)OJ L 119, 4.5.2016 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- Directive 2002/58/EC (ePrivacy), consolidated (opens in a new tab)19.12.2009 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- RFC Editor metadata (opens in a new tab)per-RFC (obsolete RFCs rejected) · IETF Trust Legal Provisions (metadata only)
- NIST CSRC, W3C TR, IETF Datatracker, EDPB, EUR-Lex CELLAR and gesetze-bayern.de (opens in a new tab)per document · Titles and links only
- NIST NVD CVE API 2.0 (opens in a new tab)live records · Public domain (NVD); CVE® records © MITRE, free use
- W3C WCAG 2.2 (opens in a new tab)W3C Recommendation (wcag.json) · W3C Software and Document License
- ETSI EN 301 549 (opens in a new tab)V3.2.1 (2021-03), clause headings · Clause numbers and titles only (© ETSI)
- Directive (EU) 2019/882 (European Accessibility Act) (opens in a new tab)OJ L 151, 7.6.2019 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- Directive (EU) 2016/2102 (Web Accessibility Directive) (opens in a new tab)OJ L 327, 2.12.2016 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
Retrieved 2026-10-25
Earlier scans of this domain
- 75/100Medium23 findings · partial scanView report
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