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Security report for whatismyzip.com

Jonatan Heyman · Technology · Sweden

High risk. 7 critical or high findings in Email security, Security headers and 2 other checks.

Security score

49/100

Risk levelHigh

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

WhatIsMyZip.com is a small personal project created by Jonatan Heyman in 2012 to provide users with a simple utility to find their current ZIP code based on GPS location or address input. The website is straightforward, free to use, and monetized through Google Adsense advertising. It targets general internet users who need quick postal code information. Technically, the site uses a Flask backend with Leaflet for mapping and JavaScript Geolocation API for location detection. It integrates social media widgets and analytics for user engagement and tracking. Security posture is basic with HTTPS enabled but lacks advanced security headers and DNSSEC. Privacy compliance is minimal with a basic privacy policy but no cookie consent mechanism. Overall, the site is functional, safe, and trustworthy for general audiences but could improve in security and privacy practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

7 findings 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.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  2. 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 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';…

  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

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

Keep watching whatismyzip.com

This scan found 28 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

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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
62
Security headers
30
Email security
40
DNS health
70
Network security
40
GDPR outside view
53
Average
49

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

The website occupies a niche utility space with limited direct competition, offering a focused service of ZIP code lookup. Its business model relies on advertising revenue, with no evident paid services or subscriptions. The founder's transparency and presence on social media add credibility. The site is small in scale, targeting a broad audience needing location-based postal code information. There is no evidence of partnerships or subsidiaries. Growth potential is limited by the niche nature but stable due to consistent utility. The advertising ecosystem includes Google Adsense and tracking via Google Analytics and social media pixels, indicating a standard monetization approach for small web projects.

Security posture

Security maturity is basic. The site uses HTTPS, which is mandatory, but lacks DNSSEC and important security headers like Content-Security-Policy and Strict-Transport-Security. No vulnerability disclosure or incident response information is provided. The absence of cookie consent mechanisms and minimal privacy compliance could expose the site to regulatory risks under GDPR. Third-party scripts increase the attack surface but are common for such sites. No critical vulnerabilities or exposed sensitive data were detected. Overall, the security posture is adequate for a low-risk informational site but should be enhanced to improve trust and compliance.

Recommendations

  1. Enable DNSSEC on the domain to strengthen DNS security.
  2. Implement security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Add a cookie consent banner to comply with GDPR and other privacy regulations.
  4. Publish a dedicated security policy and provide incident response contact information.
  5. Regularly review and update third-party scripts to mitigate vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Jonatan Heyman
Description
A simple website that provides the ZIP code of the user's current location based on GPS position. Created by Jonatan Heyman as a personal project to solve the problem of finding postal codes easily.
Key services
ZIP code lookup by GPS or address input
Content quality
good
Branding
moderate

Technology

Stack
JavaScript, jQuery, Google Analytics, Google Adsense, Facebook SDK, Twitter Widgets
Frameworks
Flask, Leaflet
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
55/100
Good practices seen
  • HTTPS enabled
  • clientTransferProhibited domain status

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Adsense
Tracking pixels
Facebook SDK, Twitter Widgets
Transparency
basic

Site quality

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

Key observations

  1. Website is a small personal project focused on providing ZIP code lookup service.
  2. Content is accessible and not blocked by WAF or security mechanisms.
  3. No contact emails or phone numbers explicitly provided.
  4. Privacy policy is present but basic; no cookie consent mechanism detected.
  5. Uses multiple third-party scripts for social media and advertising.
  6. No advanced security headers detected; DNSSEC not enabled.
  7. Advertising is primarily via Google Adsense.
  8. No terms of service or security policy pages found.
  9. No vulnerability disclosure or security.txt found.
  10. Website is safe and suitable for general audiences.
Technical notes

Notes

The website is built on a Flask backend with Leaflet for interactive maps and uses the JavaScript Geolocation API for location detection. It employs jQuery and integrates social media widgets from Facebook and Twitter. Google Analytics and Adsense are used for tracking and monetization. The site is hosted behind Cloudflare DNS, providing some CDN and security benefits. Performance is moderate with basic mobile optimization and accessibility. SEO is basic with proper meta tags but no advanced structured data like JSON-LD. The site could benefit from modernizing some scripts and improving accessibility features.
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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