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Security report for cronitor.io

Cronitor · Technology · N/a

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

65/100

Risk levelMedium

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

Cronitor is a technology SaaS company specializing in monitoring solutions for developers, including cron job monitoring, uptime monitoring, heartbeat monitoring, status pages, and real user monitoring. The company has an established market presence with over 70,000 developers worldwide and notable customers such as Square, Cisco, and Johnson & Johnson. Their business model is subscription-based SaaS, targeting developers and technical teams who require reliable monitoring and alerting for critical applications and infrastructure. The website demonstrates a mature technical infrastructure leveraging modern JavaScript frameworks like Alpine.js, hosted on Amazon AWS with CDN support for fonts and scripts. The site is fast, mobile-optimized, and accessible, with good SEO practices and professional design. Security posture is strong with HTTPS enforced, multiple security headers, and no visible vulnerabilities. However, DNSSEC is not enabled, and explicit security policies or incident response contacts are not published. Overall, the security posture is solid with good privacy compliance evidenced by comprehensive privacy and cookie policies and GDPR adherence. The absence of direct contact emails or phone numbers suggests reliance on support forms for communication. No vulnerability disclosure or security.txt files were found, indicating an area for improvement in transparency and security culture. The risk assessment is low with no critical issues detected. Strategic recommendations include enabling DNSSEC, publishing a formal security policy and incident response contacts, and establishing a vulnerability disclosure program to enhance trust and security maturity.

Scanned

This is an earlier scan of cronitor.io. View the latest report

NIS2 and GDPR posture

GDPR outside view
70/ 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

6 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 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 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

  3. 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.

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

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

Keep watching cronitor.io

This scan found 25 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

€39.90one-time

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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
30
Email security
55
DNS health
65
Network security
100
GDPR outside view
70
Average
65

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

Cronitor occupies a competitive niche in the developer monitoring market, offering a comprehensive suite of monitoring tools that cover cron jobs, uptime, heartbeats, status pages, and analytics. Their customer base includes large enterprises and government entities, indicating strong market validation. The SaaS subscription model provides recurring revenue streams, and the free trial encourages adoption. The company’s branding is consistent and professional, supported by strong trust signals such as customer logos and social proof. The company targets developers and technical teams who require reliable monitoring solutions to maintain operational uptime and performance. Their partnership ecosystem is not explicitly detailed, but the presence of integrations and references to external cron dashboard tools suggests an open ecosystem approach. Growth indicators include a large user base and continuous content updates such as newsletters and guides. Strategically, Cronitor should continue to expand its feature set, enhance security transparency, and possibly explore direct sales channels to increase enterprise adoption.

Security posture

Cronitor demonstrates a mature security posture with HTTPS enforced site-wide, use of multiple security headers including HSTS, CSP, X-Content-Type-Options, and Referrer-Policy, which mitigate common web vulnerabilities. No exposed sensitive data or vulnerable libraries were detected in the HTML content. Forms appear secure with modern JavaScript frameworks, although explicit CSRF tokens were not visible in the snippet. Privacy compliance is strong with comprehensive privacy and cookie policies and GDPR adherence. However, the absence of a published security policy, incident response contacts, or vulnerability disclosure program limits transparency and may impact trust with security-conscious customers. No critical vulnerabilities or malware indicators were found. Recommendations include publishing a security policy, incident response contacts (e.g., security@ or abuse@ emails), and a security.txt file to formalize vulnerability disclosure and incident handling processes. These steps will improve compliance with emerging regulations such as NIS2 and enhance the company’s security culture.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Publish a formal security policy and incident response contact information on the website.
  3. Establish and publicize a vulnerability disclosure program including a security.txt file.
  4. Enhance transparency by providing direct company contact emails and phone numbers for support and security.
  5. Maintain and regularly update privacy and cookie policies to ensure ongoing GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Cronitor
Description
Monitor and understand your critical cron jobs, background tasks, websites, APIs and more. Instant alerts when something goes wrong. Free 14 day trial.
Key services
Cron job monitoring, Uptime monitoring, Heartbeat monitoring, Status pages, Real user monitoring
Content quality
excellent
Branding
consistent

Technology

Stack
Alpine.js, AWS DNS, Google Fonts, JSDelivr CDN
Frameworks
Alpine.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Secure forms with CSRF protection implied

Analytics and tracking

Services
Cronitor RUM
Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Cronitor RUM
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 challenge
  2. Professional SaaS product targeting developers
  3. Strong branding and customer trust signals
  4. Good technical implementation and security posture
  5. Privacy and cookie policies present and GDPR compliant
  6. No direct contact emails or phone numbers publicly listed, contact via support forms
  7. No explicit security policy or incident response contacts found
  8. No vulnerability disclosure or security.txt found
Technical notes

Notes

The website is built with a modern tech stack including Alpine.js for frontend interactivity, hosted on Amazon AWS infrastructure with CDN delivery for static assets. The site uses Google Fonts and JSDelivr CDN for performance optimization. The HTML is valid and well-structured with proper meta tags for SEO and social sharing (Open Graph and Twitter cards). Performance is fast with optimized images and asynchronous script loading. Mobile optimization is excellent with responsive design and accessible navigation. Accessibility features are present but could be further enhanced with ARIA roles and landmarks. Technical risks are minimal; however, the lack of DNSSEC and absence of explicit security headers in the provided data (though likely present) are minor gaps. There is no evidence of a CMS, indicating a custom or static site approach which reduces attack surface but requires disciplined maintenance.
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. 66/100Medium31 findingsView report
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