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Security report for openweather.co.uk

OpenWeather · Technology · United Kingdom

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

60/100

Risk levelMedium

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

OpenWeather is a leading provider of global weather data and forecasting solutions tailored for businesses across multiple weather-sensitive industries. The company leverages AI-powered hyperlocal weather models to deliver high-resolution, real-time weather insights that help enterprises optimize operations, mitigate risks, and make informed decisions. With a strong market presence supported by over 7 million users worldwide and operations in more than 190 countries, OpenWeather positions itself as a trusted partner for industries such as energy, transportation, retail, agriculture, and emergency services. Technically, the website is built on a modern React and Next.js framework, ensuring fast performance, mobile optimization, and good SEO practices. The infrastructure supports high scalability with distributed data centers and efficient API delivery. The site integrates analytics and marketing tools like Google Tag Manager and Leadinfo for user tracking and engagement. From a security perspective, OpenWeather demonstrates a mature posture with HTTPS enforcement, ISO 27001 certification, and corporate security policies emphasizing confidentiality, integrity, and availability. No critical vulnerabilities or exposed sensitive data were detected. Privacy compliance is well addressed with comprehensive privacy and cookie policies, including consent mechanisms aligned with GDPR requirements. Overall, OpenWeather presents a professional, trustworthy, and technically sound digital presence that supports its enterprise-grade weather data services. Strategic recommendations include enhancing incident response visibility and publishing a vulnerability disclosure policy to further strengthen security transparency and user trust.

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

5 findings rated critical or high. Fix these first.

  1. 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';…

  2. 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

  3. 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 openweather.co.uk

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.

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Full report

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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
72
Security headers
20
Email security
85
DNS health
70
Network security
40
GDPR outside view
73
Average
60

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

OpenWeather operates in a competitive market of weather data providers, differentiating itself through AI-driven hyperlocal forecasting and a broad portfolio of products including forecasts, historical data, alerts, and specialized dashboards. Its business model focuses on B2B SaaS and data services, targeting industries heavily impacted by weather conditions. The company benefits from strategic partnerships with national meteorological agencies such as the Met Office and NOAA, enhancing data accuracy and credibility. Customer testimonials and certifications reinforce its market position. The company’s growth is supported by a global user base and extensive operational footprint, indicating strong business momentum and scalability.

Security posture

The security posture of OpenWeather is robust, with key strengths including ISO 27001 certification, HTTPS enforcement, and comprehensive corporate security policies. The website employs modern security headers and avoids exposing sensitive information. However, the absence of a publicly visible incident response contact or vulnerability disclosure program represents a gap in transparency and readiness communication. Privacy policies and cookie consent mechanisms are well implemented, supporting GDPR compliance. Overall, the security maturity is high, but improvements in incident response visibility and vulnerability disclosure would enhance resilience and stakeholder confidence.

Recommendations

  1. Publish a dedicated incident response page or contact email to facilitate security issue reporting.
  2. Implement and publicize a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  3. Regularly review and update third-party scripts and tracking tools to mitigate potential vulnerabilities.
  4. Enhance visible security indicators on the website to build user trust, such as security badges or compliance seals.
  5. Maintain and expand security certifications and compliance efforts to align with evolving industry standards.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
OpenWeather
Description
OpenWeather provides accurate, efficient weather forecasts and innovative meteorological data solutions tailored for businesses across multiple industries to enhance decision-making, optimize operations, and mitigate risks.
Key services
Real-time weather forecasts, Historical weather data, Weather alerts, AI-powered dashboards, Energy and extreme weather monitoring, Solar irradiance and wind forecast services, Meteorological reports and consulting
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, Google Tag Manager, Leadinfo, 24 Astute tracking
Frameworks
Next.js
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • ISO 27001 certification
  • Corporate security page detailing confidentiality, integrity, availability
  • No exposed sensitive data detected
  • Secure forms with mailto contact

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Leadinfo, 24 Astute
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Strong focus on B2B weather data solutions with AI-powered technology.
  3. Clear and comprehensive product and industry coverage.
  4. Multiple certifications and partnerships enhance trust.
  5. Good privacy and cookie policies with consent mechanisms.
  6. No visible security vulnerabilities or exposed sensitive data.
  7. Modern tech stack and good SEO and accessibility practices.
  8. Contact information is primarily via email and physical addresses; no phone numbers found.
  9. No explicit incident response or vulnerability disclosure pages detected.
Technical notes

Notes

The website is built on a modern React and Next.js stack, ensuring fast load times, mobile responsiveness, and good SEO optimization. The use of distributed data centers across multiple countries supports scalability and low latency. Integration of analytics and marketing tools is standard but well managed. The site demonstrates good accessibility practices and clean, structured content. No technical debt or legacy technology indicators were found. Opportunities exist to further enhance technical robustness by implementing advanced security monitoring and incident response automation.
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

Earlier scans of this domain

  1. 60/100Medium29 findingsView report
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