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Security report for nextdoor.de

Nextdoor · Technology · Germany

Low risk. 2 critical or high findings in GDPR outside view and SSL/TLS.

Security score

80/100

Risk levelLow

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

Nextdoor is a well-established neighborhood social networking platform that enables local communities in Germany to connect, share tips, and engage in local commerce such as buying and selling items. The website demonstrates consistent branding and a professional digital presence with localized versions for multiple countries. Technically, the site uses modern web technologies including React, AWS CloudFront CDN, Google Tag Manager, and a privacy SDK, indicating a mature and scalable infrastructure. Security posture is generally good with HTTPS enforced and use of trusted hosting, but lacks explicit security headers and published security policies. Privacy compliance is limited on the main page with no visible privacy or cookie policies, which is an area for improvement. Overall, the site is safe, professional, and trustworthy with moderate user tracking via analytics.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 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

2 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.

    • 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

  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.

    • 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

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

Keep watching nextdoor.de

This scan found 16 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

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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
82
Security headers
85
Email security
70
DNS health
70
Network security
100
GDPR outside view
73
Average
80

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

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 nextdoor.de, from OffSeq Breach.

Total records
545
Employees
0
Customers
545
Third parties
0
Weak passwords
19%

2 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for nextdoor.de.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

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

Business context

Business profile

Nextdoor operates in the technology sector focusing on social networking for neighborhoods. Its business model centers on community engagement and local marketplace services. The company targets local residents and communities in Germany, leveraging a global brand with localized country domains. The platform's competitive advantage lies in its niche focus on neighborhoods and local interactions. The presence of Google and Facebook verification tags and social media links supports a credible and transparent brand image. No direct contact information or detailed company registration data is publicly visible on the main page, which is typical for large tech platforms relying on centralized support channels.

Security posture

The website enforces HTTPS and uses reputable hosting and CDN services, which provides a solid foundation for secure communications. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces the overall security hardening. No vulnerability disclosure or incident response information is published, which limits transparency in security management. The use of a privacy SDK suggests some attention to user consent and data protection, but the lack of visible privacy and cookie policies indicates incomplete compliance with GDPR best practices. No exposed sensitive data or vulnerable libraries were detected in the provided content.

Recommendations

  1. Publish comprehensive privacy and cookie policies prominently linked on the website.
  2. Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to enhance security posture.
  3. Provide a publicly accessible security policy and incident response contact information to improve transparency.
  4. Add a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
  5. Enhance privacy compliance by integrating clear consent mechanisms and detailed data retention disclosures.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Nextdoor
Description
Nextdoor is an app for neighborhoods where users can get local tips, buy and sell items, and more. It is used by many communities throughout Germany to strengthen their neighborhoods.
Key services
Neighborhood social networking, Local tips sharing, Buy and sell marketplace
Content quality
good
Branding
consistent

Technology

Stack
React (implied by react-datepicker CSS), Google Tag Manager, Google Sign-In, AWS CloudFront CDN, Privacy Center SDK
Frameworks
React
Platforms
AWS
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Use of Google Tag Manager for analytics
  • Privacy Center SDK for consent management

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
Privacy Center SDK
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. No explicit privacy, cookie, or terms of service policies found in the HTML content provided.
  3. Strong branding and consistent use of Nextdoor's global domains.
  4. Use of modern web technologies and CDNs for performance.
  5. No direct contact emails or phone numbers found on the main page HTML.
  6. Social media links present for Facebook, Twitter, Instagram.
  7. No security.txt or vulnerability disclosure found.
  8. No explicit security headers detected in provided data.
  9. Good mobile optimization and SEO meta tags present.
Technical notes

Notes

The website uses a modern React-based frontend with optimized font loading and responsive design. Hosting is via AWS CloudFront CDN, ensuring fast global delivery and scalability. Google Tag Manager is used for analytics and marketing tracking, and a privacy SDK is integrated for consent management. The site is mobile optimized and includes SEO best practices such as hreflang tags for internationalization. No CMS was explicitly detected, suggesting a custom or proprietary platform. Performance is likely fast due to CDN usage and script preloading. Accessibility is basic but present, with room for improvement in ARIA roles and keyboard navigation support.
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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